Class CloudTasksClient (2.55.0)

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Service Description: Cloud Tasks allows developers to manage the execution of background work in their applications.

This class provides the ability to make remote calls to the backing service through method calls that map to API methods. Sample code to get started:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   QueueName name = QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]");
   Queue response = cloudTasksClient.getQueue(name);
 }

Note: close() needs to be called on the CloudTasksClient object to clean up resources such as threads. In the example above, try-with-resources is used, which automatically calls close().

Methods
Method Description Method Variants

ListQueues

Lists queues.

Queues are returned in lexicographical order.

Request object method variants only take one parameter, a request object, which must be constructed before the call.

  • listQueues(ListQueuesRequest request)

"Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method.

  • listQueues(LocationName parent)

  • listQueues(String parent)

Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.

  • listQueuesPagedCallable()

  • listQueuesCallable()

GetQueue

Gets a queue.

Request object method variants only take one parameter, a request object, which must be constructed before the call.

  • getQueue(GetQueueRequest request)

"Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method.

  • getQueue(QueueName name)

  • getQueue(String name)

Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.

  • getQueueCallable()

CreateQueue

Creates a queue.

Queues created with this method allow tasks to live for a maximum of 31 days. After a task is 31 days old, the task will be deleted regardless of whether it was dispatched or not.

WARNING: Using this method may have unintended side effects if you are using an App Engine queue.yaml or queue.xml file to manage your queues. Read Overview of Queue Management and queue.yaml before using this method.

Request object method variants only take one parameter, a request object, which must be constructed before the call.

  • createQueue(CreateQueueRequest request)

"Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method.

  • createQueue(LocationName parent, Queue queue)

  • createQueue(String parent, Queue queue)

Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.

  • createQueueCallable()

UpdateQueue

Updates a queue.

This method creates the queue if it does not exist and updates the queue if it does exist.

Queues created with this method allow tasks to live for a maximum of 31 days. After a task is 31 days old, the task will be deleted regardless of whether it was dispatched or not.

WARNING: Using this method may have unintended side effects if you are using an App Engine queue.yaml or queue.xml file to manage your queues. Read Overview of Queue Management and queue.yaml before using this method.

Request object method variants only take one parameter, a request object, which must be constructed before the call.

  • updateQueue(UpdateQueueRequest request)

"Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method.

  • updateQueue(Queue queue, FieldMask updateMask)

Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.

  • updateQueueCallable()

DeleteQueue

Deletes a queue.

This command will delete the queue even if it has tasks in it.

Note: If you delete a queue, a queue with the same name can't be created for 7 days.

WARNING: Using this method may have unintended side effects if you are using an App Engine queue.yaml or queue.xml file to manage your queues. Read Overview of Queue Management and queue.yaml before using this method.

Request object method variants only take one parameter, a request object, which must be constructed before the call.

  • deleteQueue(DeleteQueueRequest request)

"Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method.

  • deleteQueue(QueueName name)

  • deleteQueue(String name)

Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.

  • deleteQueueCallable()

PurgeQueue

Purges a queue by deleting all of its tasks.

All tasks created before this method is called are permanently deleted.

Purge operations can take up to one minute to take effect. Tasks might be dispatched before the purge takes effect. A purge is irreversible.

Request object method variants only take one parameter, a request object, which must be constructed before the call.

  • purgeQueue(PurgeQueueRequest request)

"Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method.

  • purgeQueue(QueueName name)

  • purgeQueue(String name)

Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.

  • purgeQueueCallable()

PauseQueue

Pauses the queue.

If a queue is paused then the system will stop dispatching tasks until the queue is resumed via ResumeQueue. Tasks can still be added when the queue is paused. A queue is paused if its state is PAUSED.

Request object method variants only take one parameter, a request object, which must be constructed before the call.

  • pauseQueue(PauseQueueRequest request)

"Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method.

  • pauseQueue(QueueName name)

  • pauseQueue(String name)

Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.

  • pauseQueueCallable()

ResumeQueue

Resume a queue.

This method resumes a queue after it has been PAUSED or DISABLED. The state of a queue is stored in the queue's state; after calling this method it will be set to RUNNING.

WARNING: Resuming many high-QPS queues at the same time can lead to target overloading. If you are resuming high-QPS queues, follow the 500/50/5 pattern described in Managing Cloud Tasks Scaling Risks.

Request object method variants only take one parameter, a request object, which must be constructed before the call.

  • resumeQueue(ResumeQueueRequest request)

"Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method.

  • resumeQueue(QueueName name)

  • resumeQueue(String name)

Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.

  • resumeQueueCallable()

GetIamPolicy

Gets the access control policy for a Queue. Returns an empty policy if the resource exists and does not have a policy set.

Authorization requires the following Google IAM permission on the specified resource parent:

  • cloudtasks.queues.getIamPolicy

Request object method variants only take one parameter, a request object, which must be constructed before the call.

  • getIamPolicy(GetIamPolicyRequest request)

"Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method.

  • getIamPolicy(ResourceName resource)

  • getIamPolicy(String resource)

Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.

  • getIamPolicyCallable()

SetIamPolicy

Sets the access control policy for a Queue. Replaces any existing policy.

Note: The Cloud Console does not check queue-level IAM permissions yet. Project-level permissions are required to use the Cloud Console.

Authorization requires the following Google IAM permission on the specified resource parent:

  • cloudtasks.queues.setIamPolicy

Request object method variants only take one parameter, a request object, which must be constructed before the call.

  • setIamPolicy(SetIamPolicyRequest request)

"Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method.

  • setIamPolicy(ResourceName resource, Policy policy)

  • setIamPolicy(String resource, Policy policy)

Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.

  • setIamPolicyCallable()

TestIamPermissions

Returns permissions that a caller has on a Queue. If the resource does not exist, this will return an empty set of permissions, not a NOT_FOUND error.

Note: This operation is designed to be used for building permission-aware UIs and command-line tools, not for authorization checking. This operation may "fail open" without warning.

Request object method variants only take one parameter, a request object, which must be constructed before the call.

  • testIamPermissions(TestIamPermissionsRequest request)

"Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method.

  • testIamPermissions(ResourceName resource, List<String> permissions)

  • testIamPermissions(String resource, List<String> permissions)

Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.

  • testIamPermissionsCallable()

ListTasks

Lists the tasks in a queue.

By default, only the BASIC view is retrieved due to performance considerations; response_view controls the subset of information which is returned.

The tasks may be returned in any order. The ordering may change at any time.

Request object method variants only take one parameter, a request object, which must be constructed before the call.

  • listTasks(ListTasksRequest request)

"Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method.

  • listTasks(QueueName parent)

  • listTasks(String parent)

Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.

  • listTasksPagedCallable()

  • listTasksCallable()

GetTask

Gets a task.

Request object method variants only take one parameter, a request object, which must be constructed before the call.

  • getTask(GetTaskRequest request)

"Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method.

  • getTask(TaskName name)

  • getTask(String name)

Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.

  • getTaskCallable()

CreateTask

Creates a task and adds it to a queue.

Tasks cannot be updated after creation; there is no UpdateTask command.

  • The maximum task size is 100KB.

Request object method variants only take one parameter, a request object, which must be constructed before the call.

  • createTask(CreateTaskRequest request)

"Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method.

  • createTask(QueueName parent, Task task)

  • createTask(String parent, Task task)

Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.

  • createTaskCallable()

DeleteTask

Deletes a task.

A task can be deleted if it is scheduled or dispatched. A task cannot be deleted if it has executed successfully or permanently failed.

Request object method variants only take one parameter, a request object, which must be constructed before the call.

  • deleteTask(DeleteTaskRequest request)

"Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method.

  • deleteTask(TaskName name)

  • deleteTask(String name)

Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.

  • deleteTaskCallable()

RunTask

Forces a task to run now.

When this method is called, Cloud Tasks will dispatch the task, even if the task is already running, the queue has reached its RateLimits or is PAUSED.

This command is meant to be used for manual debugging. For example, RunTask can be used to retry a failed task after a fix has been made or to manually force a task to be dispatched now.

The dispatched task is returned. That is, the task that is returned contains the status after the task is dispatched but before the task is received by its target.

If Cloud Tasks receives a successful response from the task's target, then the task will be deleted; otherwise the task's schedule_time will be reset to the time that RunTask was called plus the retry delay specified in the queue's RetryConfig.

RunTask returns NOT_FOUND when it is called on a task that has already succeeded or permanently failed.

Request object method variants only take one parameter, a request object, which must be constructed before the call.

  • runTask(RunTaskRequest request)

"Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method.

  • runTask(TaskName name)

  • runTask(String name)

Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.

  • runTaskCallable()

ListLocations

Lists information about the supported locations for this service.

Request object method variants only take one parameter, a request object, which must be constructed before the call.

  • listLocations(ListLocationsRequest request)

Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.

  • listLocationsPagedCallable()

  • listLocationsCallable()

GetLocation

Gets information about a location.

Request object method variants only take one parameter, a request object, which must be constructed before the call.

  • getLocation(GetLocationRequest request)

Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.

  • getLocationCallable()

See the individual methods for example code.

Many parameters require resource names to be formatted in a particular way. To assist with these names, this class includes a format method for each type of name, and additionally a parse method to extract the individual identifiers contained within names that are returned.

This class can be customized by passing in a custom instance of CloudTasksSettings to create(). For example:

To customize credentials:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 CloudTasksSettings cloudTasksSettings =
     CloudTasksSettings.newBuilder()
         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
         .build();
 CloudTasksClient cloudTasksClient = CloudTasksClient.create(cloudTasksSettings);

To customize the endpoint:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 CloudTasksSettings cloudTasksSettings =
     CloudTasksSettings.newBuilder().setEndpoint(myEndpoint).build();
 CloudTasksClient cloudTasksClient = CloudTasksClient.create(cloudTasksSettings);

To use REST (HTTP1.1/JSON) transport (instead of gRPC) for sending and receiving requests over the wire:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 CloudTasksSettings cloudTasksSettings = CloudTasksSettings.newHttpJsonBuilder().build();
 CloudTasksClient cloudTasksClient = CloudTasksClient.create(cloudTasksSettings);

Please refer to the GitHub repository's samples for more quickstart code snippets.

Inheritance

java.lang.Object > CloudTasksClient

Static Methods

create()

public static final CloudTasksClient create()

Constructs an instance of CloudTasksClient with default settings.

Returns
Type Description
CloudTasksClient
Exceptions
Type Description
IOException

create(CloudTasksSettings settings)

public static final CloudTasksClient create(CloudTasksSettings settings)

Constructs an instance of CloudTasksClient, using the given settings. The channels are created based on the settings passed in, or defaults for any settings that are not set.

Parameter
Name Description
settings CloudTasksSettings
Returns
Type Description
CloudTasksClient
Exceptions
Type Description
IOException

create(CloudTasksStub stub)

public static final CloudTasksClient create(CloudTasksStub stub)

Constructs an instance of CloudTasksClient, using the given stub for making calls. This is for advanced usage - prefer using create(CloudTasksSettings).

Parameter
Name Description
stub CloudTasksStub
Returns
Type Description
CloudTasksClient

Constructors

CloudTasksClient(CloudTasksSettings settings)

protected CloudTasksClient(CloudTasksSettings settings)

Constructs an instance of CloudTasksClient, using the given settings. This is protected so that it is easy to make a subclass, but otherwise, the static factory methods should be preferred.

Parameter
Name Description
settings CloudTasksSettings

CloudTasksClient(CloudTasksStub stub)

protected CloudTasksClient(CloudTasksStub stub)
Parameter
Name Description
stub CloudTasksStub

Methods

awaitTermination(long duration, TimeUnit unit)

public boolean awaitTermination(long duration, TimeUnit unit)
Parameters
Name Description
duration long
unit TimeUnit
Returns
Type Description
boolean
Exceptions
Type Description
InterruptedException

close()

public final void close()

createQueue(CreateQueueRequest request)

public final Queue createQueue(CreateQueueRequest request)

Creates a queue.

Queues created with this method allow tasks to live for a maximum of 31 days. After a task is 31 days old, the task will be deleted regardless of whether it was dispatched or not.

WARNING: Using this method may have unintended side effects if you are using an App Engine queue.yaml or queue.xml file to manage your queues. Read Overview of Queue Management and queue.yaml before using this method.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   CreateQueueRequest request =
       CreateQueueRequest.newBuilder()
           .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
           .setQueue(Queue.newBuilder().build())
           .build();
   Queue response = cloudTasksClient.createQueue(request);
 }
Parameter
Name Description
request CreateQueueRequest

The request object containing all of the parameters for the API call.
Returns
Type Description
Queue

createQueue(LocationName parent, Queue queue)

public final Queue createQueue(LocationName parent, Queue queue)

Creates a queue.

Queues created with this method allow tasks to live for a maximum of 31 days. After a task is 31 days old, the task will be deleted regardless of whether it was dispatched or not.

WARNING: Using this method may have unintended side effects if you are using an App Engine queue.yaml or queue.xml file to manage your queues. Read Overview of Queue Management and queue.yaml before using this method.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
   Queue queue = Queue.newBuilder().build();
   Queue response = cloudTasksClient.createQueue(parent, queue);
 }
Parameters
Name Description
parent LocationName

Required. The location name in which the queue will be created. For example: projects/PROJECT_ID/locations/LOCATION_ID

The list of allowed locations can be obtained by calling Cloud Tasks' implementation of ListLocations.
queue Queue

Required. The queue to create.

Queue's name cannot be the same as an existing queue.
Returns
Type Description
Queue

createQueue(String parent, Queue queue)

public final Queue createQueue(String parent, Queue queue)

Creates a queue.

Queues created with this method allow tasks to live for a maximum of 31 days. After a task is 31 days old, the task will be deleted regardless of whether it was dispatched or not.

WARNING: Using this method may have unintended side effects if you are using an App Engine queue.yaml or queue.xml file to manage your queues. Read Overview of Queue Management and queue.yaml before using this method.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   String parent = LocationName.of("[PROJECT]", "[LOCATION]").toString();
   Queue queue = Queue.newBuilder().build();
   Queue response = cloudTasksClient.createQueue(parent, queue);
 }
Parameters
Name Description
parent String

Required. The location name in which the queue will be created. For example: projects/PROJECT_ID/locations/LOCATION_ID

The list of allowed locations can be obtained by calling Cloud Tasks' implementation of ListLocations.
queue Queue

Required. The queue to create.

Queue's name cannot be the same as an existing queue.
Returns
Type Description
Queue

createQueueCallable()

public final UnaryCallable<CreateQueueRequest,Queue> createQueueCallable()

Creates a queue.

Queues created with this method allow tasks to live for a maximum of 31 days. After a task is 31 days old, the task will be deleted regardless of whether it was dispatched or not.

WARNING: Using this method may have unintended side effects if you are using an App Engine queue.yaml or queue.xml file to manage your queues. Read Overview of Queue Management and queue.yaml before using this method.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   CreateQueueRequest request =
       CreateQueueRequest.newBuilder()
           .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
           .setQueue(Queue.newBuilder().build())
           .build();
   ApiFuture<Queue> future = cloudTasksClient.createQueueCallable().futureCall(request);
   // Do something.
   Queue response = future.get();
 }
Returns
Type Description
UnaryCallable<CreateQueueRequest,Queue>

createTask(CreateTaskRequest request)

public final Task createTask(CreateTaskRequest request)

Creates a task and adds it to a queue.

Tasks cannot be updated after creation; there is no UpdateTask command.

  • The maximum task size is 100KB.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   CreateTaskRequest request =
       CreateTaskRequest.newBuilder()
           .setParent(QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString())
           .setTask(Task.newBuilder().build())
           .build();
   Task response = cloudTasksClient.createTask(request);
 }
Parameter
Name Description
request CreateTaskRequest

The request object containing all of the parameters for the API call.
Returns
Type Description
Task

createTask(QueueName parent, Task task)

public final Task createTask(QueueName parent, Task task)

Creates a task and adds it to a queue.

Tasks cannot be updated after creation; there is no UpdateTask command.

  • The maximum task size is 100KB.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   QueueName parent = QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]");
   Task task = Task.newBuilder().build();
   Task response = cloudTasksClient.createTask(parent, task);
 }
Parameters
Name Description
parent QueueName

Required. The queue name. For example: projects/PROJECT_ID/locations/LOCATION_ID/queues/QUEUE_ID

The queue must already exist.
task Task

Required. The task to add.

Task names have the following format: projects/PROJECT_ID/locations/LOCATION_ID/queues/QUEUE_ID/tasks/TASK_ID. The user can optionally specify a task name. If a name is not specified then the system will generate a random unique task id, which will be set in the task returned in the response.

If schedule_time is not set or is in the past then Cloud Tasks will set it to the current time.

Task De-duplication:

Explicitly specifying a task ID enables task de-duplication. If a task's ID is identical to that of an existing task or a task that was deleted or executed recently then the call will fail with ALREADY_EXISTS. If the task's queue was created using Cloud Tasks, then another task with the same name can't be created for ~1hour after the original task was deleted or executed. If the task's queue was created using queue.yaml or queue.xml, then another task with the same name can't be created for ~9days after the original task was deleted or executed.

Because there is an extra lookup cost to identify duplicate task names, these CreateTask calls have significantly increased latency. Using hashed strings for the task id or for the prefix of the task id is recommended. Choosing task ids that are sequential or have sequential prefixes, for example using a timestamp, causes an increase in latency and error rates in all task commands. The infrastructure relies on an approximately uniform distribution of task ids to store and serve tasks efficiently.
Returns
Type Description
Task

createTask(String parent, Task task)

public final Task createTask(String parent, Task task)

Creates a task and adds it to a queue.

Tasks cannot be updated after creation; there is no UpdateTask command.

  • The maximum task size is 100KB.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   String parent = QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString();
   Task task = Task.newBuilder().build();
   Task response = cloudTasksClient.createTask(parent, task);
 }
Parameters
Name Description
parent String

Required. The queue name. For example: projects/PROJECT_ID/locations/LOCATION_ID/queues/QUEUE_ID

The queue must already exist.
task Task

Required. The task to add.

Task names have the following format: projects/PROJECT_ID/locations/LOCATION_ID/queues/QUEUE_ID/tasks/TASK_ID. The user can optionally specify a task name. If a name is not specified then the system will generate a random unique task id, which will be set in the task returned in the response.

If schedule_time is not set or is in the past then Cloud Tasks will set it to the current time.

Task De-duplication:

Explicitly specifying a task ID enables task de-duplication. If a task's ID is identical to that of an existing task or a task that was deleted or executed recently then the call will fail with ALREADY_EXISTS. If the task's queue was created using Cloud Tasks, then another task with the same name can't be created for ~1hour after the original task was deleted or executed. If the task's queue was created using queue.yaml or queue.xml, then another task with the same name can't be created for ~9days after the original task was deleted or executed.

Because there is an extra lookup cost to identify duplicate task names, these CreateTask calls have significantly increased latency. Using hashed strings for the task id or for the prefix of the task id is recommended. Choosing task ids that are sequential or have sequential prefixes, for example using a timestamp, causes an increase in latency and error rates in all task commands. The infrastructure relies on an approximately uniform distribution of task ids to store and serve tasks efficiently.
Returns
Type Description
Task

createTaskCallable()

public final UnaryCallable<CreateTaskRequest,Task> createTaskCallable()

Creates a task and adds it to a queue.

Tasks cannot be updated after creation; there is no UpdateTask command.

  • The maximum task size is 100KB.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   CreateTaskRequest request =
       CreateTaskRequest.newBuilder()
           .setParent(QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString())
           .setTask(Task.newBuilder().build())
           .build();
   ApiFuture<Task> future = cloudTasksClient.createTaskCallable().futureCall(request);
   // Do something.
   Task response = future.get();
 }
Returns
Type Description
UnaryCallable<CreateTaskRequest,Task>

deleteQueue(DeleteQueueRequest request)

public final void deleteQueue(DeleteQueueRequest request)

Deletes a queue.

This command will delete the queue even if it has tasks in it.

Note: If you delete a queue, a queue with the same name can't be created for 7 days.

WARNING: Using this method may have unintended side effects if you are using an App Engine queue.yaml or queue.xml file to manage your queues. Read Overview of Queue Management and queue.yaml before using this method.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   DeleteQueueRequest request =
       DeleteQueueRequest.newBuilder()
           .setName(QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString())
           .build();
   cloudTasksClient.deleteQueue(request);
 }
Parameter
Name Description
request DeleteQueueRequest

The request object containing all of the parameters for the API call.

deleteQueue(QueueName name)

public final void deleteQueue(QueueName name)

Deletes a queue.

This command will delete the queue even if it has tasks in it.

Note: If you delete a queue, a queue with the same name can't be created for 7 days.

WARNING: Using this method may have unintended side effects if you are using an App Engine queue.yaml or queue.xml file to manage your queues. Read Overview of Queue Management and queue.yaml before using this method.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   QueueName name = QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]");
   cloudTasksClient.deleteQueue(name);
 }
Parameter
Name Description
name QueueName

Required. The queue name. For example: projects/PROJECT_ID/locations/LOCATION_ID/queues/QUEUE_ID

deleteQueue(String name)

public final void deleteQueue(String name)

Deletes a queue.

This command will delete the queue even if it has tasks in it.

Note: If you delete a queue, a queue with the same name can't be created for 7 days.

WARNING: Using this method may have unintended side effects if you are using an App Engine queue.yaml or queue.xml file to manage your queues. Read Overview of Queue Management and queue.yaml before using this method.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   String name = QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString();
   cloudTasksClient.deleteQueue(name);
 }
Parameter
Name Description
name String

Required. The queue name. For example: projects/PROJECT_ID/locations/LOCATION_ID/queues/QUEUE_ID

deleteQueueCallable()

public final UnaryCallable<DeleteQueueRequest,Empty> deleteQueueCallable()

Deletes a queue.

This command will delete the queue even if it has tasks in it.

Note: If you delete a queue, a queue with the same name can't be created for 7 days.

WARNING: Using this method may have unintended side effects if you are using an App Engine queue.yaml or queue.xml file to manage your queues. Read Overview of Queue Management and queue.yaml before using this method.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   DeleteQueueRequest request =
       DeleteQueueRequest.newBuilder()
           .setName(QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString())
           .build();
   ApiFuture<Empty> future = cloudTasksClient.deleteQueueCallable().futureCall(request);
   // Do something.
   future.get();
 }
Returns
Type Description
UnaryCallable<DeleteQueueRequest,Empty>

deleteTask(DeleteTaskRequest request)

public final void deleteTask(DeleteTaskRequest request)

Deletes a task.

A task can be deleted if it is scheduled or dispatched. A task cannot be deleted if it has executed successfully or permanently failed.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   DeleteTaskRequest request =
       DeleteTaskRequest.newBuilder()
           .setName(TaskName.of("[PROJECT]", "[LOCATION]", "[QUEUE]", "[TASK]").toString())
           .build();
   cloudTasksClient.deleteTask(request);
 }
Parameter
Name Description
request DeleteTaskRequest

The request object containing all of the parameters for the API call.

deleteTask(TaskName name)

public final void deleteTask(TaskName name)

Deletes a task.

A task can be deleted if it is scheduled or dispatched. A task cannot be deleted if it has executed successfully or permanently failed.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   TaskName name = TaskName.of("[PROJECT]", "[LOCATION]", "[QUEUE]", "[TASK]");
   cloudTasksClient.deleteTask(name);
 }
Parameter
Name Description
name TaskName

Required. The task name. For example: projects/PROJECT_ID/locations/LOCATION_ID/queues/QUEUE_ID/tasks/TASK_ID

deleteTask(String name)

public final void deleteTask(String name)

Deletes a task.

A task can be deleted if it is scheduled or dispatched. A task cannot be deleted if it has executed successfully or permanently failed.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   String name = TaskName.of("[PROJECT]", "[LOCATION]", "[QUEUE]", "[TASK]").toString();
   cloudTasksClient.deleteTask(name);
 }
Parameter
Name Description
name String

Required. The task name. For example: projects/PROJECT_ID/locations/LOCATION_ID/queues/QUEUE_ID/tasks/TASK_ID

deleteTaskCallable()

public final UnaryCallable<DeleteTaskRequest,Empty> deleteTaskCallable()

Deletes a task.

A task can be deleted if it is scheduled or dispatched. A task cannot be deleted if it has executed successfully or permanently failed.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   DeleteTaskRequest request =
       DeleteTaskRequest.newBuilder()
           .setName(TaskName.of("[PROJECT]", "[LOCATION]", "[QUEUE]", "[TASK]").toString())
           .build();
   ApiFuture<Empty> future = cloudTasksClient.deleteTaskCallable().futureCall(request);
   // Do something.
   future.get();
 }
Returns
Type Description
UnaryCallable<DeleteTaskRequest,Empty>

getIamPolicy(ResourceName resource)

public final Policy getIamPolicy(ResourceName resource)

Gets the access control policy for a Queue. Returns an empty policy if the resource exists and does not have a policy set.

Authorization requires the following Google IAM permission on the specified resource parent:

  • cloudtasks.queues.getIamPolicy

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   ResourceName resource = QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]");
   Policy response = cloudTasksClient.getIamPolicy(resource);
 }
Parameter
Name Description
resource com.google.api.resourcenames.ResourceName

REQUIRED: The resource for which the policy is being requested. See the operation documentation for the appropriate value for this field.
Returns
Type Description
com.google.iam.v1.Policy

getIamPolicy(QueueName queueName)

public final Policy getIamPolicy(QueueName queueName)
Parameter
Name Description
queueName QueueName
Returns
Type Description
com.google.iam.v1.Policy

getIamPolicy(GetIamPolicyRequest request)

public final Policy getIamPolicy(GetIamPolicyRequest request)

Gets the access control policy for a Queue. Returns an empty policy if the resource exists and does not have a policy set.

Authorization requires the following Google IAM permission on the specified resource parent:

  • cloudtasks.queues.getIamPolicy

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   GetIamPolicyRequest request =
       GetIamPolicyRequest.newBuilder()
           .setResource(QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString())
           .setOptions(GetPolicyOptions.newBuilder().build())
           .build();
   Policy response = cloudTasksClient.getIamPolicy(request);
 }
Parameter
Name Description
request com.google.iam.v1.GetIamPolicyRequest

The request object containing all of the parameters for the API call.
Returns
Type Description
com.google.iam.v1.Policy

getIamPolicy(String resource)

public final Policy getIamPolicy(String resource)

Gets the access control policy for a Queue. Returns an empty policy if the resource exists and does not have a policy set.

Authorization requires the following Google IAM permission on the specified resource parent:

  • cloudtasks.queues.getIamPolicy

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   String resource = QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString();
   Policy response = cloudTasksClient.getIamPolicy(resource);
 }
Parameter
Name Description
resource String

REQUIRED: The resource for which the policy is being requested. See the operation documentation for the appropriate value for this field.
Returns
Type Description
com.google.iam.v1.Policy

getIamPolicyCallable()

public final UnaryCallable<GetIamPolicyRequest,Policy> getIamPolicyCallable()

Gets the access control policy for a Queue. Returns an empty policy if the resource exists and does not have a policy set.

Authorization requires the following Google IAM permission on the specified resource parent:

  • cloudtasks.queues.getIamPolicy

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   GetIamPolicyRequest request =
       GetIamPolicyRequest.newBuilder()
           .setResource(QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString())
           .setOptions(GetPolicyOptions.newBuilder().build())
           .build();
   ApiFuture<Policy> future = cloudTasksClient.getIamPolicyCallable().futureCall(request);
   // Do something.
   Policy response = future.get();
 }
Returns
Type Description
UnaryCallable<com.google.iam.v1.GetIamPolicyRequest,com.google.iam.v1.Policy>

getLocation(GetLocationRequest request)

public final Location getLocation(GetLocationRequest request)

Gets information about a location.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   GetLocationRequest request = GetLocationRequest.newBuilder().setName("name3373707").build();
   Location response = cloudTasksClient.getLocation(request);
 }
Parameter
Name Description
request com.google.cloud.location.GetLocationRequest

The request object containing all of the parameters for the API call.
Returns
Type Description
com.google.cloud.location.Location

getLocationCallable()

public final UnaryCallable<GetLocationRequest,Location> getLocationCallable()

Gets information about a location.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   GetLocationRequest request = GetLocationRequest.newBuilder().setName("name3373707").build();
   ApiFuture<Location> future = cloudTasksClient.getLocationCallable().futureCall(request);
   // Do something.
   Location response = future.get();
 }
Returns
Type Description
UnaryCallable<com.google.cloud.location.GetLocationRequest,com.google.cloud.location.Location>

getQueue(GetQueueRequest request)

public final Queue getQueue(GetQueueRequest request)

Gets a queue.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   GetQueueRequest request =
       GetQueueRequest.newBuilder()
           .setName(QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString())
           .build();
   Queue response = cloudTasksClient.getQueue(request);
 }
Parameter
Name Description
request GetQueueRequest

The request object containing all of the parameters for the API call.
Returns
Type Description
Queue

getQueue(QueueName name)

public final Queue getQueue(QueueName name)

Gets a queue.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   QueueName name = QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]");
   Queue response = cloudTasksClient.getQueue(name);
 }
Parameter
Name Description
name QueueName

Required. The resource name of the queue. For example: projects/PROJECT_ID/locations/LOCATION_ID/queues/QUEUE_ID
Returns
Type Description
Queue

getQueue(String name)

public final Queue getQueue(String name)

Gets a queue.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   String name = QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString();
   Queue response = cloudTasksClient.getQueue(name);
 }
Parameter
Name Description
name String

Required. The resource name of the queue. For example: projects/PROJECT_ID/locations/LOCATION_ID/queues/QUEUE_ID
Returns
Type Description
Queue

getQueueCallable()

public final UnaryCallable<GetQueueRequest,Queue> getQueueCallable()

Gets a queue.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   GetQueueRequest request =
       GetQueueRequest.newBuilder()
           .setName(QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString())
           .build();
   ApiFuture<Queue> future = cloudTasksClient.getQueueCallable().futureCall(request);
   // Do something.
   Queue response = future.get();
 }
Returns
Type Description
UnaryCallable<GetQueueRequest,Queue>

getSettings()

public final CloudTasksSettings getSettings()
Returns
Type Description
CloudTasksSettings

getStub()

public CloudTasksStub getStub()
Returns
Type Description
CloudTasksStub

getTask(GetTaskRequest request)

public final Task getTask(GetTaskRequest request)

Gets a task.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   GetTaskRequest request =
       GetTaskRequest.newBuilder()
           .setName(TaskName.of("[PROJECT]", "[LOCATION]", "[QUEUE]", "[TASK]").toString())
           .build();
   Task response = cloudTasksClient.getTask(request);
 }
Parameter
Name Description
request GetTaskRequest

The request object containing all of the parameters for the API call.
Returns
Type Description
Task

getTask(TaskName name)

public final Task getTask(TaskName name)

Gets a task.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   TaskName name = TaskName.of("[PROJECT]", "[LOCATION]", "[QUEUE]", "[TASK]");
   Task response = cloudTasksClient.getTask(name);
 }
Parameter
Name Description
name TaskName

Required. The task name. For example: projects/PROJECT_ID/locations/LOCATION_ID/queues/QUEUE_ID/tasks/TASK_ID
Returns
Type Description
Task

getTask(String name)

public final Task getTask(String name)

Gets a task.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   String name = TaskName.of("[PROJECT]", "[LOCATION]", "[QUEUE]", "[TASK]").toString();
   Task response = cloudTasksClient.getTask(name);
 }
Parameter
Name Description
name String

Required. The task name. For example: projects/PROJECT_ID/locations/LOCATION_ID/queues/QUEUE_ID/tasks/TASK_ID
Returns
Type Description
Task

getTaskCallable()

public final UnaryCallable<GetTaskRequest,Task> getTaskCallable()

Gets a task.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   GetTaskRequest request =
       GetTaskRequest.newBuilder()
           .setName(TaskName.of("[PROJECT]", "[LOCATION]", "[QUEUE]", "[TASK]").toString())
           .build();
   ApiFuture<Task> future = cloudTasksClient.getTaskCallable().futureCall(request);
   // Do something.
   Task response = future.get();
 }
Returns
Type Description
UnaryCallable<GetTaskRequest,Task>

isShutdown()

public boolean isShutdown()
Returns
Type Description
boolean

isTerminated()

public boolean isTerminated()
Returns
Type Description
boolean

listLocations(ListLocationsRequest request)

public final CloudTasksClient.ListLocationsPagedResponse listLocations(ListLocationsRequest request)

Lists information about the supported locations for this service.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   ListLocationsRequest request =
       ListLocationsRequest.newBuilder()
           .setName("name3373707")
           .setFilter("filter-1274492040")
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .build();
   for (Location element : cloudTasksClient.listLocations(request).iterateAll()) {
     // doThingsWith(element);
   }
 }
Parameter
Name Description
request com.google.cloud.location.ListLocationsRequest

The request object containing all of the parameters for the API call.
Returns
Type Description
CloudTasksClient.ListLocationsPagedResponse

listLocationsCallable()

public final UnaryCallable<ListLocationsRequest,ListLocationsResponse> listLocationsCallable()

Lists information about the supported locations for this service.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   ListLocationsRequest request =
       ListLocationsRequest.newBuilder()
           .setName("name3373707")
           .setFilter("filter-1274492040")
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .build();
   while (true) {
     ListLocationsResponse response = cloudTasksClient.listLocationsCallable().call(request);
     for (Location element : response.getLocationsList()) {
       // doThingsWith(element);
     }
     String nextPageToken = response.getNextPageToken();
     if (!Strings.isNullOrEmpty(nextPageToken)) {
       request = request.toBuilder().setPageToken(nextPageToken).build();
     } else {
       break;
     }
   }
 }
Returns
Type Description
UnaryCallable<com.google.cloud.location.ListLocationsRequest,com.google.cloud.location.ListLocationsResponse>

listLocationsPagedCallable()

public final UnaryCallable<ListLocationsRequest,CloudTasksClient.ListLocationsPagedResponse> listLocationsPagedCallable()

Lists information about the supported locations for this service.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   ListLocationsRequest request =
       ListLocationsRequest.newBuilder()
           .setName("name3373707")
           .setFilter("filter-1274492040")
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .build();
   ApiFuture<Location> future =
       cloudTasksClient.listLocationsPagedCallable().futureCall(request);
   // Do something.
   for (Location element : future.get().iterateAll()) {
     // doThingsWith(element);
   }
 }
Returns
Type Description
UnaryCallable<com.google.cloud.location.ListLocationsRequest,ListLocationsPagedResponse>

listQueues(ListQueuesRequest request)

public final CloudTasksClient.ListQueuesPagedResponse listQueues(ListQueuesRequest request)

Lists queues.

Queues are returned in lexicographical order.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   ListQueuesRequest request =
       ListQueuesRequest.newBuilder()
           .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
           .setFilter("filter-1274492040")
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .build();
   for (Queue element : cloudTasksClient.listQueues(request).iterateAll()) {
     // doThingsWith(element);
   }
 }
Parameter
Name Description
request ListQueuesRequest

The request object containing all of the parameters for the API call.
Returns
Type Description
CloudTasksClient.ListQueuesPagedResponse

listQueues(LocationName parent)

public final CloudTasksClient.ListQueuesPagedResponse listQueues(LocationName parent)

Lists queues.

Queues are returned in lexicographical order.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
   for (Queue element : cloudTasksClient.listQueues(parent).iterateAll()) {
     // doThingsWith(element);
   }
 }
Parameter
Name Description
parent LocationName

Required. The location name. For example: projects/PROJECT_ID/locations/LOCATION_ID
Returns
Type Description
CloudTasksClient.ListQueuesPagedResponse

listQueues(String parent)

public final CloudTasksClient.ListQueuesPagedResponse listQueues(String parent)

Lists queues.

Queues are returned in lexicographical order.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   String parent = LocationName.of("[PROJECT]", "[LOCATION]").toString();
   for (Queue element : cloudTasksClient.listQueues(parent).iterateAll()) {
     // doThingsWith(element);
   }
 }
Parameter
Name Description
parent String

Required. The location name. For example: projects/PROJECT_ID/locations/LOCATION_ID
Returns
Type Description
CloudTasksClient.ListQueuesPagedResponse

listQueuesCallable()

public final UnaryCallable<ListQueuesRequest,ListQueuesResponse> listQueuesCallable()

Lists queues.

Queues are returned in lexicographical order.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   ListQueuesRequest request =
       ListQueuesRequest.newBuilder()
           .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
           .setFilter("filter-1274492040")
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .build();
   while (true) {
     ListQueuesResponse response = cloudTasksClient.listQueuesCallable().call(request);
     for (Queue element : response.getQueuesList()) {
       // doThingsWith(element);
     }
     String nextPageToken = response.getNextPageToken();
     if (!Strings.isNullOrEmpty(nextPageToken)) {
       request = request.toBuilder().setPageToken(nextPageToken).build();
     } else {
       break;
     }
   }
 }
Returns
Type Description
UnaryCallable<ListQueuesRequest,ListQueuesResponse>

listQueuesPagedCallable()

public final UnaryCallable<ListQueuesRequest,CloudTasksClient.ListQueuesPagedResponse> listQueuesPagedCallable()

Lists queues.

Queues are returned in lexicographical order.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   ListQueuesRequest request =
       ListQueuesRequest.newBuilder()
           .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
           .setFilter("filter-1274492040")
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .build();
   ApiFuture<Queue> future = cloudTasksClient.listQueuesPagedCallable().futureCall(request);
   // Do something.
   for (Queue element : future.get().iterateAll()) {
     // doThingsWith(element);
   }
 }
Returns
Type Description
UnaryCallable<ListQueuesRequest,ListQueuesPagedResponse>

listTasks(ListTasksRequest request)

public final CloudTasksClient.ListTasksPagedResponse listTasks(ListTasksRequest request)

Lists the tasks in a queue.

By default, only the BASIC view is retrieved due to performance considerations; response_view controls the subset of information which is returned.

The tasks may be returned in any order. The ordering may change at any time.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   ListTasksRequest request =
       ListTasksRequest.newBuilder()
           .setParent(QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString())
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .build();
   for (Task element : cloudTasksClient.listTasks(request).iterateAll()) {
     // doThingsWith(element);
   }
 }
Parameter
Name Description
request ListTasksRequest

The request object containing all of the parameters for the API call.
Returns
Type Description
CloudTasksClient.ListTasksPagedResponse

listTasks(QueueName parent)

public final CloudTasksClient.ListTasksPagedResponse listTasks(QueueName parent)

Lists the tasks in a queue.

By default, only the BASIC view is retrieved due to performance considerations; response_view controls the subset of information which is returned.

The tasks may be returned in any order. The ordering may change at any time.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   QueueName parent = QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]");
   for (Task element : cloudTasksClient.listTasks(parent).iterateAll()) {
     // doThingsWith(element);
   }
 }
Parameter
Name Description
parent QueueName

Required. The queue name. For example: projects/PROJECT_ID/locations/LOCATION_ID/queues/QUEUE_ID
Returns
Type Description
CloudTasksClient.ListTasksPagedResponse

listTasks(String parent)

public final CloudTasksClient.ListTasksPagedResponse listTasks(String parent)

Lists the tasks in a queue.

By default, only the BASIC view is retrieved due to performance considerations; response_view controls the subset of information which is returned.

The tasks may be returned in any order. The ordering may change at any time.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   String parent = QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString();
   for (Task element : cloudTasksClient.listTasks(parent).iterateAll()) {
     // doThingsWith(element);
   }
 }
Parameter
Name Description
parent String

Required. The queue name. For example: projects/PROJECT_ID/locations/LOCATION_ID/queues/QUEUE_ID
Returns
Type Description
CloudTasksClient.ListTasksPagedResponse

listTasksCallable()

public final UnaryCallable<ListTasksRequest,ListTasksResponse> listTasksCallable()

Lists the tasks in a queue.

By default, only the BASIC view is retrieved due to performance considerations; response_view controls the subset of information which is returned.

The tasks may be returned in any order. The ordering may change at any time.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   ListTasksRequest request =
       ListTasksRequest.newBuilder()
           .setParent(QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString())
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .build();
   while (true) {
     ListTasksResponse response = cloudTasksClient.listTasksCallable().call(request);
     for (Task element : response.getTasksList()) {
       // doThingsWith(element);
     }
     String nextPageToken = response.getNextPageToken();
     if (!Strings.isNullOrEmpty(nextPageToken)) {
       request = request.toBuilder().setPageToken(nextPageToken).build();
     } else {
       break;
     }
   }
 }
Returns
Type Description
UnaryCallable<ListTasksRequest,ListTasksResponse>

listTasksPagedCallable()

public final UnaryCallable<ListTasksRequest,CloudTasksClient.ListTasksPagedResponse> listTasksPagedCallable()

Lists the tasks in a queue.

By default, only the BASIC view is retrieved due to performance considerations; response_view controls the subset of information which is returned.

The tasks may be returned in any order. The ordering may change at any time.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   ListTasksRequest request =
       ListTasksRequest.newBuilder()
           .setParent(QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString())
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .build();
   ApiFuture<Task> future = cloudTasksClient.listTasksPagedCallable().futureCall(request);
   // Do something.
   for (Task element : future.get().iterateAll()) {
     // doThingsWith(element);
   }
 }
Returns
Type Description
UnaryCallable<ListTasksRequest,ListTasksPagedResponse>

pauseQueue(PauseQueueRequest request)

public final Queue pauseQueue(PauseQueueRequest request)

Pauses the queue.

If a queue is paused then the system will stop dispatching tasks until the queue is resumed via ResumeQueue. Tasks can still be added when the queue is paused. A queue is paused if its state is PAUSED.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   PauseQueueRequest request =
       PauseQueueRequest.newBuilder()
           .setName(QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString())
           .build();
   Queue response = cloudTasksClient.pauseQueue(request);
 }
Parameter
Name Description
request PauseQueueRequest

The request object containing all of the parameters for the API call.
Returns
Type Description
Queue

pauseQueue(QueueName name)

public final Queue pauseQueue(QueueName name)

Pauses the queue.

If a queue is paused then the system will stop dispatching tasks until the queue is resumed via ResumeQueue. Tasks can still be added when the queue is paused. A queue is paused if its state is PAUSED.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   QueueName name = QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]");
   Queue response = cloudTasksClient.pauseQueue(name);
 }
Parameter
Name Description
name QueueName

Required. The queue name. For example: projects/PROJECT_ID/location/LOCATION_ID/queues/QUEUE_ID
Returns
Type Description
Queue

pauseQueue(String name)

public final Queue pauseQueue(String name)

Pauses the queue.

If a queue is paused then the system will stop dispatching tasks until the queue is resumed via ResumeQueue. Tasks can still be added when the queue is paused. A queue is paused if its state is PAUSED.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   String name = QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString();
   Queue response = cloudTasksClient.pauseQueue(name);
 }
Parameter
Name Description
name String

Required. The queue name. For example: projects/PROJECT_ID/location/LOCATION_ID/queues/QUEUE_ID
Returns
Type Description
Queue

pauseQueueCallable()

public final UnaryCallable<PauseQueueRequest,Queue> pauseQueueCallable()

Pauses the queue.

If a queue is paused then the system will stop dispatching tasks until the queue is resumed via ResumeQueue. Tasks can still be added when the queue is paused. A queue is paused if its state is PAUSED.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   PauseQueueRequest request =
       PauseQueueRequest.newBuilder()
           .setName(QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString())
           .build();
   ApiFuture<Queue> future = cloudTasksClient.pauseQueueCallable().futureCall(request);
   // Do something.
   Queue response = future.get();
 }
Returns
Type Description
UnaryCallable<PauseQueueRequest,Queue>

purgeQueue(PurgeQueueRequest request)

public final Queue purgeQueue(PurgeQueueRequest request)

Purges a queue by deleting all of its tasks.

All tasks created before this method is called are permanently deleted.

Purge operations can take up to one minute to take effect. Tasks might be dispatched before the purge takes effect. A purge is irreversible.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   PurgeQueueRequest request =
       PurgeQueueRequest.newBuilder()
           .setName(QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString())
           .build();
   Queue response = cloudTasksClient.purgeQueue(request);
 }
Parameter
Name Description
request PurgeQueueRequest

The request object containing all of the parameters for the API call.
Returns
Type Description
Queue

purgeQueue(QueueName name)

public final Queue purgeQueue(QueueName name)

Purges a queue by deleting all of its tasks.

All tasks created before this method is called are permanently deleted.

Purge operations can take up to one minute to take effect. Tasks might be dispatched before the purge takes effect. A purge is irreversible.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   QueueName name = QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]");
   Queue response = cloudTasksClient.purgeQueue(name);
 }
Parameter
Name Description
name QueueName

Required. The queue name. For example: projects/PROJECT_ID/location/LOCATION_ID/queues/QUEUE_ID
Returns
Type Description
Queue

purgeQueue(String name)

public final Queue purgeQueue(String name)

Purges a queue by deleting all of its tasks.

All tasks created before this method is called are permanently deleted.

Purge operations can take up to one minute to take effect. Tasks might be dispatched before the purge takes effect. A purge is irreversible.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   String name = QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString();
   Queue response = cloudTasksClient.purgeQueue(name);
 }
Parameter
Name Description
name String

Required. The queue name. For example: projects/PROJECT_ID/location/LOCATION_ID/queues/QUEUE_ID
Returns
Type Description
Queue

purgeQueueCallable()

public final UnaryCallable<PurgeQueueRequest,Queue> purgeQueueCallable()

Purges a queue by deleting all of its tasks.

All tasks created before this method is called are permanently deleted.

Purge operations can take up to one minute to take effect. Tasks might be dispatched before the purge takes effect. A purge is irreversible.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   PurgeQueueRequest request =
       PurgeQueueRequest.newBuilder()
           .setName(QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString())
           .build();
   ApiFuture<Queue> future = cloudTasksClient.purgeQueueCallable().futureCall(request);
   // Do something.
   Queue response = future.get();
 }
Returns
Type Description
UnaryCallable<PurgeQueueRequest,Queue>

resumeQueue(QueueName name)

public final Queue resumeQueue(QueueName name)

Resume a queue.

This method resumes a queue after it has been PAUSED or DISABLED. The state of a queue is stored in the queue's state; after calling this method it will be set to RUNNING.

WARNING: Resuming many high-QPS queues at the same time can lead to target overloading. If you are resuming high-QPS queues, follow the 500/50/5 pattern described in Managing Cloud Tasks Scaling Risks.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   QueueName name = QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]");
   Queue response = cloudTasksClient.resumeQueue(name);
 }
Parameter
Name Description
name QueueName

Required. The queue name. For example: projects/PROJECT_ID/location/LOCATION_ID/queues/QUEUE_ID
Returns
Type Description
Queue

resumeQueue(ResumeQueueRequest request)

public final Queue resumeQueue(ResumeQueueRequest request)

Resume a queue.

This method resumes a queue after it has been PAUSED or DISABLED. The state of a queue is stored in the queue's state; after calling this method it will be set to RUNNING.

WARNING: Resuming many high-QPS queues at the same time can lead to target overloading. If you are resuming high-QPS queues, follow the 500/50/5 pattern described in Managing Cloud Tasks Scaling Risks.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   ResumeQueueRequest request =
       ResumeQueueRequest.newBuilder()
           .setName(QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString())
           .build();
   Queue response = cloudTasksClient.resumeQueue(request);
 }
Parameter
Name Description
request ResumeQueueRequest

The request object containing all of the parameters for the API call.
Returns
Type Description
Queue

resumeQueue(String name)

public final Queue resumeQueue(String name)

Resume a queue.

This method resumes a queue after it has been PAUSED or DISABLED. The state of a queue is stored in the queue's state; after calling this method it will be set to RUNNING.

WARNING: Resuming many high-QPS queues at the same time can lead to target overloading. If you are resuming high-QPS queues, follow the 500/50/5 pattern described in Managing Cloud Tasks Scaling Risks.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   String name = QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString();
   Queue response = cloudTasksClient.resumeQueue(name);
 }
Parameter
Name Description
name String

Required. The queue name. For example: projects/PROJECT_ID/location/LOCATION_ID/queues/QUEUE_ID
Returns
Type Description
Queue

resumeQueueCallable()

public final UnaryCallable<ResumeQueueRequest,Queue> resumeQueueCallable()

Resume a queue.

This method resumes a queue after it has been PAUSED or DISABLED. The state of a queue is stored in the queue's state; after calling this method it will be set to RUNNING.

WARNING: Resuming many high-QPS queues at the same time can lead to target overloading. If you are resuming high-QPS queues, follow the 500/50/5 pattern described in Managing Cloud Tasks Scaling Risks.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   ResumeQueueRequest request =
       ResumeQueueRequest.newBuilder()
           .setName(QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString())
           .build();
   ApiFuture<Queue> future = cloudTasksClient.resumeQueueCallable().futureCall(request);
   // Do something.
   Queue response = future.get();
 }
Returns
Type Description
UnaryCallable<ResumeQueueRequest,Queue>

runTask(RunTaskRequest request)

public final Task runTask(RunTaskRequest request)

Forces a task to run now.

When this method is called, Cloud Tasks will dispatch the task, even if the task is already running, the queue has reached its RateLimits or is PAUSED.

This command is meant to be used for manual debugging. For example, RunTask can be used to retry a failed task after a fix has been made or to manually force a task to be dispatched now.

The dispatched task is returned. That is, the task that is returned contains the status after the task is dispatched but before the task is received by its target.

If Cloud Tasks receives a successful response from the task's target, then the task will be deleted; otherwise the task's schedule_time will be reset to the time that RunTask was called plus the retry delay specified in the queue's RetryConfig.

RunTask returns NOT_FOUND when it is called on a task that has already succeeded or permanently failed.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   RunTaskRequest request =
       RunTaskRequest.newBuilder()
           .setName(TaskName.of("[PROJECT]", "[LOCATION]", "[QUEUE]", "[TASK]").toString())
           .build();
   Task response = cloudTasksClient.runTask(request);
 }
Parameter
Name Description
request RunTaskRequest

The request object containing all of the parameters for the API call.
Returns
Type Description
Task

runTask(TaskName name)

public final Task runTask(TaskName name)

Forces a task to run now.

When this method is called, Cloud Tasks will dispatch the task, even if the task is already running, the queue has reached its RateLimits or is PAUSED.

This command is meant to be used for manual debugging. For example, RunTask can be used to retry a failed task after a fix has been made or to manually force a task to be dispatched now.

The dispatched task is returned. That is, the task that is returned contains the status after the task is dispatched but before the task is received by its target.

If Cloud Tasks receives a successful response from the task's target, then the task will be deleted; otherwise the task's schedule_time will be reset to the time that RunTask was called plus the retry delay specified in the queue's RetryConfig.

RunTask returns NOT_FOUND when it is called on a task that has already succeeded or permanently failed.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   TaskName name = TaskName.of("[PROJECT]", "[LOCATION]", "[QUEUE]", "[TASK]");
   Task response = cloudTasksClient.runTask(name);
 }
Parameter
Name Description
name TaskName

Required. The task name. For example: projects/PROJECT_ID/locations/LOCATION_ID/queues/QUEUE_ID/tasks/TASK_ID
Returns
Type Description
Task

runTask(String name)

public final Task runTask(String name)

Forces a task to run now.

When this method is called, Cloud Tasks will dispatch the task, even if the task is already running, the queue has reached its RateLimits or is PAUSED.

This command is meant to be used for manual debugging. For example, RunTask can be used to retry a failed task after a fix has been made or to manually force a task to be dispatched now.

The dispatched task is returned. That is, the task that is returned contains the status after the task is dispatched but before the task is received by its target.

If Cloud Tasks receives a successful response from the task's target, then the task will be deleted; otherwise the task's schedule_time will be reset to the time that RunTask was called plus the retry delay specified in the queue's RetryConfig.

RunTask returns NOT_FOUND when it is called on a task that has already succeeded or permanently failed.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   String name = TaskName.of("[PROJECT]", "[LOCATION]", "[QUEUE]", "[TASK]").toString();
   Task response = cloudTasksClient.runTask(name);
 }
Parameter
Name Description
name String

Required. The task name. For example: projects/PROJECT_ID/locations/LOCATION_ID/queues/QUEUE_ID/tasks/TASK_ID
Returns
Type Description
Task

runTaskCallable()

public final UnaryCallable<RunTaskRequest,Task> runTaskCallable()

Forces a task to run now.

When this method is called, Cloud Tasks will dispatch the task, even if the task is already running, the queue has reached its RateLimits or is PAUSED.

This command is meant to be used for manual debugging. For example, RunTask can be used to retry a failed task after a fix has been made or to manually force a task to be dispatched now.

The dispatched task is returned. That is, the task that is returned contains the status after the task is dispatched but before the task is received by its target.

If Cloud Tasks receives a successful response from the task's target, then the task will be deleted; otherwise the task's schedule_time will be reset to the time that RunTask was called plus the retry delay specified in the queue's RetryConfig.

RunTask returns NOT_FOUND when it is called on a task that has already succeeded or permanently failed.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   RunTaskRequest request =
       RunTaskRequest.newBuilder()
           .setName(TaskName.of("[PROJECT]", "[LOCATION]", "[QUEUE]", "[TASK]").toString())
           .build();
   ApiFuture<Task> future = cloudTasksClient.runTaskCallable().futureCall(request);
   // Do something.
   Task response = future.get();
 }
Returns
Type Description
UnaryCallable<RunTaskRequest,Task>

setIamPolicy(ResourceName resource, Policy policy)

public final Policy setIamPolicy(ResourceName resource, Policy policy)

Sets the access control policy for a Queue. Replaces any existing policy.

Note: The Cloud Console does not check queue-level IAM permissions yet. Project-level permissions are required to use the Cloud Console.

Authorization requires the following Google IAM permission on the specified resource parent:

  • cloudtasks.queues.setIamPolicy

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   ResourceName resource = QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]");
   Policy policy = Policy.newBuilder().build();
   Policy response = cloudTasksClient.setIamPolicy(resource, policy);
 }
Parameters
Name Description
resource com.google.api.resourcenames.ResourceName

REQUIRED: The resource for which the policy is being specified. See the operation documentation for the appropriate value for this field.
policy com.google.iam.v1.Policy

REQUIRED: The complete policy to be applied to the resource. The size of the policy is limited to a few 10s of KB. An empty policy is a valid policy but certain Cloud Platform services (such as Projects) might reject them.
Returns
Type Description
com.google.iam.v1.Policy

setIamPolicy(QueueName queue, Policy policy)

public final Policy setIamPolicy(QueueName queue, Policy policy)
Parameters
Name Description
queue QueueName
policy com.google.iam.v1.Policy
Returns
Type Description
com.google.iam.v1.Policy

setIamPolicy(SetIamPolicyRequest request)

public final Policy setIamPolicy(SetIamPolicyRequest request)

Sets the access control policy for a Queue. Replaces any existing policy.

Note: The Cloud Console does not check queue-level IAM permissions yet. Project-level permissions are required to use the Cloud Console.

Authorization requires the following Google IAM permission on the specified resource parent:

  • cloudtasks.queues.setIamPolicy

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   SetIamPolicyRequest request =
       SetIamPolicyRequest.newBuilder()
           .setResource(QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString())
           .setPolicy(Policy.newBuilder().build())
           .setUpdateMask(FieldMask.newBuilder().build())
           .build();
   Policy response = cloudTasksClient.setIamPolicy(request);
 }
Parameter
Name Description
request com.google.iam.v1.SetIamPolicyRequest

The request object containing all of the parameters for the API call.
Returns
Type Description
com.google.iam.v1.Policy

setIamPolicy(String resource, Policy policy)

public final Policy setIamPolicy(String resource, Policy policy)

Sets the access control policy for a Queue. Replaces any existing policy.

Note: The Cloud Console does not check queue-level IAM permissions yet. Project-level permissions are required to use the Cloud Console.

Authorization requires the following Google IAM permission on the specified resource parent:

  • cloudtasks.queues.setIamPolicy

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   String resource = QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString();
   Policy policy = Policy.newBuilder().build();
   Policy response = cloudTasksClient.setIamPolicy(resource, policy);
 }
Parameters
Name Description
resource String

REQUIRED: The resource for which the policy is being specified. See the operation documentation for the appropriate value for this field.
policy com.google.iam.v1.Policy

REQUIRED: The complete policy to be applied to the resource. The size of the policy is limited to a few 10s of KB. An empty policy is a valid policy but certain Cloud Platform services (such as Projects) might reject them.
Returns
Type Description
com.google.iam.v1.Policy

setIamPolicyCallable()

public final UnaryCallable<SetIamPolicyRequest,Policy> setIamPolicyCallable()

Sets the access control policy for a Queue. Replaces any existing policy.

Note: The Cloud Console does not check queue-level IAM permissions yet. Project-level permissions are required to use the Cloud Console.

Authorization requires the following Google IAM permission on the specified resource parent:

  • cloudtasks.queues.setIamPolicy

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   SetIamPolicyRequest request =
       SetIamPolicyRequest.newBuilder()
           .setResource(QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString())
           .setPolicy(Policy.newBuilder().build())
           .setUpdateMask(FieldMask.newBuilder().build())
           .build();
   ApiFuture<Policy> future = cloudTasksClient.setIamPolicyCallable().futureCall(request);
   // Do something.
   Policy response = future.get();
 }
Returns
Type Description
UnaryCallable<com.google.iam.v1.SetIamPolicyRequest,com.google.iam.v1.Policy>

shutdown()

public void shutdown()

shutdownNow()

public void shutdownNow()

testIamPermissions(ResourceName resource, List<String> permissions)

public final TestIamPermissionsResponse testIamPermissions(ResourceName resource, List<String> permissions)

Returns permissions that a caller has on a Queue. If the resource does not exist, this will return an empty set of permissions, not a NOT_FOUND error.

Note: This operation is designed to be used for building permission-aware UIs and command-line tools, not for authorization checking. This operation may "fail open" without warning.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   ResourceName resource = QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]");
   List<String> permissions = new ArrayList<>();
   TestIamPermissionsResponse response =
       cloudTasksClient.testIamPermissions(resource, permissions);
 }
Parameters
Name Description
resource com.google.api.resourcenames.ResourceName

REQUIRED: The resource for which the policy detail is being requested. See the operation documentation for the appropriate value for this field.
permissions List<String>

The set of permissions to check for the resource. Permissions with wildcards (such as '*' or 'storage.*') are not allowed. For more information see IAM Overview.
Returns
Type Description
com.google.iam.v1.TestIamPermissionsResponse

testIamPermissions(QueueName queue, List<String> permissions)

public final TestIamPermissionsResponse testIamPermissions(QueueName queue, List<String> permissions)
Parameters
Name Description
queue QueueName
permissions List<String>
Returns
Type Description
com.google.iam.v1.TestIamPermissionsResponse

testIamPermissions(TestIamPermissionsRequest request)

public final TestIamPermissionsResponse testIamPermissions(TestIamPermissionsRequest request)

Returns permissions that a caller has on a Queue. If the resource does not exist, this will return an empty set of permissions, not a NOT_FOUND error.

Note: This operation is designed to be used for building permission-aware UIs and command-line tools, not for authorization checking. This operation may "fail open" without warning.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   TestIamPermissionsRequest request =
       TestIamPermissionsRequest.newBuilder()
           .setResource(QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString())
           .addAllPermissions(new ArrayList<String>())
           .build();
   TestIamPermissionsResponse response = cloudTasksClient.testIamPermissions(request);
 }
Parameter
Name Description
request com.google.iam.v1.TestIamPermissionsRequest

The request object containing all of the parameters for the API call.
Returns
Type Description
com.google.iam.v1.TestIamPermissionsResponse

testIamPermissions(String resource, List<String> permissions)

public final TestIamPermissionsResponse testIamPermissions(String resource, List<String> permissions)

Returns permissions that a caller has on a Queue. If the resource does not exist, this will return an empty set of permissions, not a NOT_FOUND error.

Note: This operation is designed to be used for building permission-aware UIs and command-line tools, not for authorization checking. This operation may "fail open" without warning.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   String resource = QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString();
   List<String> permissions = new ArrayList<>();
   TestIamPermissionsResponse response =
       cloudTasksClient.testIamPermissions(resource, permissions);
 }
Parameters
Name Description
resource String

REQUIRED: The resource for which the policy detail is being requested. See the operation documentation for the appropriate value for this field.
permissions List<String>

The set of permissions to check for the resource. Permissions with wildcards (such as '*' or 'storage.*') are not allowed. For more information see IAM Overview.
Returns
Type Description
com.google.iam.v1.TestIamPermissionsResponse

testIamPermissionsCallable()

public final UnaryCallable<TestIamPermissionsRequest,TestIamPermissionsResponse> testIamPermissionsCallable()

Returns permissions that a caller has on a Queue. If the resource does not exist, this will return an empty set of permissions, not a NOT_FOUND error.

Note: This operation is designed to be used for building permission-aware UIs and command-line tools, not for authorization checking. This operation may "fail open" without warning.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   TestIamPermissionsRequest request =
       TestIamPermissionsRequest.newBuilder()
           .setResource(QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]").toString())
           .addAllPermissions(new ArrayList<String>())
           .build();
   ApiFuture<TestIamPermissionsResponse> future =
       cloudTasksClient.testIamPermissionsCallable().futureCall(request);
   // Do something.
   TestIamPermissionsResponse response = future.get();
 }
Returns
Type Description
UnaryCallable<com.google.iam.v1.TestIamPermissionsRequest,com.google.iam.v1.TestIamPermissionsResponse>

updateQueue(Queue queue, FieldMask updateMask)

public final Queue updateQueue(Queue queue, FieldMask updateMask)

Updates a queue.

This method creates the queue if it does not exist and updates the queue if it does exist.

Queues created with this method allow tasks to live for a maximum of 31 days. After a task is 31 days old, the task will be deleted regardless of whether it was dispatched or not.

WARNING: Using this method may have unintended side effects if you are using an App Engine queue.yaml or queue.xml file to manage your queues. Read Overview of Queue Management and queue.yaml before using this method.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   Queue queue = Queue.newBuilder().build();
   FieldMask updateMask = FieldMask.newBuilder().build();
   Queue response = cloudTasksClient.updateQueue(queue, updateMask);
 }
Parameters
Name Description
queue Queue

Required. The queue to create or update.

The queue's name must be specified.

Output only fields cannot be modified using UpdateQueue. Any value specified for an output only field will be ignored. The queue's name cannot be changed.
updateMask FieldMask

A mask used to specify which fields of the queue are being updated.

If empty, then all fields will be updated.
Returns
Type Description
Queue

updateQueue(UpdateQueueRequest request)

public final Queue updateQueue(UpdateQueueRequest request)

Updates a queue.

This method creates the queue if it does not exist and updates the queue if it does exist.

Queues created with this method allow tasks to live for a maximum of 31 days. After a task is 31 days old, the task will be deleted regardless of whether it was dispatched or not.

WARNING: Using this method may have unintended side effects if you are using an App Engine queue.yaml or queue.xml file to manage your queues. Read Overview of Queue Management and queue.yaml before using this method.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   UpdateQueueRequest request =
       UpdateQueueRequest.newBuilder()
           .setQueue(Queue.newBuilder().build())
           .setUpdateMask(FieldMask.newBuilder().build())
           .build();
   Queue response = cloudTasksClient.updateQueue(request);
 }
Parameter
Name Description
request UpdateQueueRequest

The request object containing all of the parameters for the API call.
Returns
Type Description
Queue

updateQueueCallable()

public final UnaryCallable<UpdateQueueRequest,Queue> updateQueueCallable()

Updates a queue.

This method creates the queue if it does not exist and updates the queue if it does exist.

Queues created with this method allow tasks to live for a maximum of 31 days. After a task is 31 days old, the task will be deleted regardless of whether it was dispatched or not.

WARNING: Using this method may have unintended side effects if you are using an App Engine queue.yaml or queue.xml file to manage your queues. Read Overview of Queue Management and queue.yaml before using this method.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
   UpdateQueueRequest request =
       UpdateQueueRequest.newBuilder()
           .setQueue(Queue.newBuilder().build())
           .setUpdateMask(FieldMask.newBuilder().build())
           .build();
   ApiFuture<Queue> future = cloudTasksClient.updateQueueCallable().futureCall(request);
   // Do something.
   Queue response = future.get();
 }
Returns
Type Description
UnaryCallable<UpdateQueueRequest,Queue>