Package com.google.cloud.spanner.admin.instance.v1 (6.62.0)

A client to Cloud Spanner Instance Admin API

The interfaces provided are listed below, along with usage samples.

InstanceAdminClient

Service Description: Cloud Spanner Instance Admin API

The Cloud Spanner Instance Admin API can be used to create, delete, modify and list instances. Instances are dedicated Cloud Spanner serving and storage resources to be used by Cloud Spanner databases.

Each instance has a "configuration", which dictates where the serving resources for the Cloud Spanner instance are located (e.g., US-central, Europe). Configurations are created by Google based on resource availability.

Cloud Spanner billing is based on the instances that exist and their sizes. After an instance exists, there are no additional per-database or per-operation charges for use of the instance (though there may be additional network bandwidth charges). Instances offer isolation: problems with databases in one instance will not affect other instances. However, within an instance databases can affect each other. For example, if one database in an instance receives a lot of requests and consumes most of the instance resources, fewer resources are available for other databases in that instance, and their performance may suffer.

Sample for InstanceAdminClient:


 // 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 (InstanceAdminClient instanceAdminClient = InstanceAdminClient.create()) {
   InstanceConfigName name = InstanceConfigName.of("[PROJECT]", "[INSTANCE_CONFIG]");
   InstanceConfig response = instanceAdminClient.getInstanceConfig(name);
 }

Classes

InstanceAdminClient

Service Description: Cloud Spanner Instance Admin API

The Cloud Spanner Instance Admin API can be used to create, delete, modify and list instances. Instances are dedicated Cloud Spanner serving and storage resources to be used by Cloud Spanner databases.

Each instance has a "configuration", which dictates where the serving resources for the Cloud Spanner instance are located (e.g., US-central, Europe). Configurations are created by Google based on resource availability.

Cloud Spanner billing is based on the instances that exist and their sizes. After an instance exists, there are no additional per-database or per-operation charges for use of the instance (though there may be additional network bandwidth charges). Instances offer isolation: problems with databases in one instance will not affect other instances. However, within an instance databases can affect each other. For example, if one database in an instance receives a lot of requests and consumes most of the instance resources, fewer resources are available for other databases in that instance, and their performance may suffer.

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 (InstanceAdminClient instanceAdminClient = InstanceAdminClient.create()) {
   InstanceConfigName name = InstanceConfigName.of("[PROJECT]", "[INSTANCE_CONFIG]");
   InstanceConfig response = instanceAdminClient.getInstanceConfig(name);
 }

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

Methods
MethodDescriptionMethod Variants

ListInstanceConfigs

Lists the supported instance configurations for a given project.

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

  • listInstanceConfigs(ListInstanceConfigsRequest request)

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

  • listInstanceConfigs(ProjectName parent)

  • listInstanceConfigs(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.

  • listInstanceConfigsPagedCallable()

  • listInstanceConfigsCallable()

GetInstanceConfig

Gets information about a particular instance configuration.

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

  • getInstanceConfig(GetInstanceConfigRequest request)

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

  • getInstanceConfig(InstanceConfigName name)

  • getInstanceConfig(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.

  • getInstanceConfigCallable()

CreateInstanceConfig

Creates an instance config and begins preparing it to be used. The returned long-running operation can be used to track the progress of preparing the new instance config. The instance config name is assigned by the caller. If the named instance config already exists, CreateInstanceConfig returns ALREADY_EXISTS.

Immediately after the request returns:

* The instance config is readable via the API, with all requested attributes. The instance config's reconciling field is set to true. Its state is CREATING.

While the operation is pending:

* Cancelling the operation renders the instance config immediately unreadable via the API. * Except for deleting the creating resource, all other attempts to modify the instance config are rejected.

Upon completion of the returned operation:

* Instances can be created using the instance configuration. * The instance config's reconciling field becomes false. Its state becomes READY.

The returned long-running operation will have a name of the format <instance_config_name>/operations/<operation_id> and can be used to track creation of the instance config. The metadata field type is CreateInstanceConfigMetadata. The response field type is InstanceConfig, if successful.

Authorization requires spanner.instanceConfigs.create permission on the resource parent.

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

  • createInstanceConfigAsync(CreateInstanceConfigRequest request)

Methods that return long-running operations have "Async" method variants that return OperationFuture, which is used to track polling of the service.

  • createInstanceConfigAsync(ProjectName parent, InstanceConfig instanceConfig, String instanceConfigId)

  • createInstanceConfigAsync(String parent, InstanceConfig instanceConfig, String instanceConfigId)

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

  • createInstanceConfigOperationCallable()

  • createInstanceConfigCallable()

UpdateInstanceConfig

Updates an instance config. The returned long-running operation can be used to track the progress of updating the instance. If the named instance config does not exist, returns NOT_FOUND.

Only user managed configurations can be updated.

Immediately after the request returns:

* The instance config's reconciling field is set to true.

While the operation is pending:

* Cancelling the operation sets its metadata's cancel_time. The operation is guaranteed to succeed at undoing all changes, after which point it terminates with a CANCELLED status. * All other attempts to modify the instance config are rejected. * Reading the instance config via the API continues to give the pre-request values.

Upon completion of the returned operation:

* Creating instances using the instance configuration uses the new values. * The instance config's new values are readable via the API. * The instance config's reconciling field becomes false.

The returned long-running operation will have a name of the format <instance_config_name>/operations/<operation_id> and can be used to track the instance config modification. The metadata field type is UpdateInstanceConfigMetadata. The response field type is InstanceConfig, if successful.

Authorization requires spanner.instanceConfigs.update permission on the resource name.

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

  • updateInstanceConfigAsync(UpdateInstanceConfigRequest request)

Methods that return long-running operations have "Async" method variants that return OperationFuture, which is used to track polling of the service.

  • updateInstanceConfigAsync(InstanceConfig instanceConfig, 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.

  • updateInstanceConfigOperationCallable()

  • updateInstanceConfigCallable()

DeleteInstanceConfig

Deletes the instance config. Deletion is only allowed when no instances are using the configuration. If any instances are using the config, returns FAILED_PRECONDITION.

Only user managed configurations can be deleted.

Authorization requires spanner.instanceConfigs.delete permission on the resource name.

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

  • deleteInstanceConfig(DeleteInstanceConfigRequest request)

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

  • deleteInstanceConfig(InstanceConfigName name)

  • deleteInstanceConfig(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.

  • deleteInstanceConfigCallable()

ListInstanceConfigOperations

Lists the user-managed instance config long-running operations in the given project. An instance config operation has a name of the form projects/<project>/instanceConfigs/<instance_config>/operations/<operation>. The long-running operation metadata field type metadata.type_url describes the type of the metadata. Operations returned include those that have completed/failed/canceled within the last 7 days, and pending operations. Operations returned are ordered by operation.metadata.value.start_time in descending order starting from the most recently started operation.

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

  • listInstanceConfigOperations(ListInstanceConfigOperationsRequest request)

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

  • listInstanceConfigOperations(ProjectName parent)

  • listInstanceConfigOperations(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.

  • listInstanceConfigOperationsPagedCallable()

  • listInstanceConfigOperationsCallable()

ListInstances

Lists all instances in the given project.

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

  • listInstances(ListInstancesRequest request)

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

  • listInstances(ProjectName parent)

  • listInstances(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.

  • listInstancesPagedCallable()

  • listInstancesCallable()

GetInstance

Gets information about a particular instance.

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

  • getInstance(GetInstanceRequest request)

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

  • getInstance(InstanceName name)

  • getInstance(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.

  • getInstanceCallable()

CreateInstance

Creates an instance and begins preparing it to begin serving. The returned long-running operation can be used to track the progress of preparing the new instance. The instance name is assigned by the caller. If the named instance already exists, CreateInstance returns ALREADY_EXISTS.

Immediately upon completion of this request:

* The instance is readable via the API, with all requested attributes but no allocated resources. Its state is CREATING.

Until completion of the returned operation:

* Cancelling the operation renders the instance immediately unreadable via the API. * The instance can be deleted. * All other attempts to modify the instance are rejected.

Upon completion of the returned operation:

* Billing for all successfully-allocated resources begins (some types may have lower than the requested levels). * Databases can be created in the instance. * The instance's allocated resource levels are readable via the API. * The instance's state becomes READY.

The returned long-running operation will have a name of the format <instance_name>/operations/<operation_id> and can be used to track creation of the instance. The metadata field type is CreateInstanceMetadata. The response field type is Instance, if successful.

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

  • createInstanceAsync(CreateInstanceRequest request)

Methods that return long-running operations have "Async" method variants that return OperationFuture, which is used to track polling of the service.

  • createInstanceAsync(ProjectName parent, String instanceId, Instance instance)

  • createInstanceAsync(String parent, String instanceId, Instance instance)

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

  • createInstanceOperationCallable()

  • createInstanceCallable()

UpdateInstance

Updates an instance, and begins allocating or releasing resources as requested. The returned long-running operation can be used to track the progress of updating the instance. If the named instance does not exist, returns NOT_FOUND.

Immediately upon completion of this request:

* For resource types for which a decrease in the instance's allocation has been requested, billing is based on the newly-requested level.

Until completion of the returned operation:

* Cancelling the operation sets its metadata's cancel_time, and begins restoring resources to their pre-request values. The operation is guaranteed to succeed at undoing all resource changes, after which point it terminates with a CANCELLED status. * All other attempts to modify the instance are rejected. * Reading the instance via the API continues to give the pre-request resource levels.

Upon completion of the returned operation:

* Billing begins for all successfully-allocated resources (some types may have lower than the requested levels). * All newly-reserved resources are available for serving the instance's tables. * The instance's new resource levels are readable via the API.

The returned long-running operation will have a name of the format <instance_name>/operations/<operation_id> and can be used to track the instance modification. The metadata field type is UpdateInstanceMetadata. The response field type is Instance, if successful.

Authorization requires spanner.instances.update permission on the resource name.

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

  • updateInstanceAsync(UpdateInstanceRequest request)

Methods that return long-running operations have "Async" method variants that return OperationFuture, which is used to track polling of the service.

  • updateInstanceAsync(Instance instance, FieldMask fieldMask)

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

  • updateInstanceOperationCallable()

  • updateInstanceCallable()

DeleteInstance

Deletes an instance.

Immediately upon completion of the request:

* Billing ceases for all of the instance's reserved resources.

Soon afterward:

* The instance and *all of its databases* immediately and irrevocably disappear from the API. All data in the databases is permanently deleted.

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

  • deleteInstance(DeleteInstanceRequest request)

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

  • deleteInstance(InstanceName name)

  • deleteInstance(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.

  • deleteInstanceCallable()

SetIamPolicy

Sets the access control policy on an instance resource. Replaces any existing policy.

Authorization requires spanner.instances.setIamPolicy on resource.

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()

GetIamPolicy

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

Authorization requires spanner.instances.getIamPolicy on resource.

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()

TestIamPermissions

Returns permissions that the caller has on the specified instance resource.

Attempting this RPC on a non-existent Cloud Spanner instance resource will result in a NOT_FOUND error if the user has spanner.instances.list permission on the containing Google Cloud Project. Otherwise returns an empty set of permissions.

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()

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 InstanceAdminSettings 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
 InstanceAdminSettings instanceAdminSettings =
     InstanceAdminSettings.newBuilder()
         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
         .build();
 InstanceAdminClient instanceAdminClient = InstanceAdminClient.create(instanceAdminSettings);

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
 InstanceAdminSettings instanceAdminSettings =
     InstanceAdminSettings.newBuilder().setEndpoint(myEndpoint).build();
 InstanceAdminClient instanceAdminClient = InstanceAdminClient.create(instanceAdminSettings);

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
 InstanceAdminSettings instanceAdminSettings =
     InstanceAdminSettings.newHttpJsonBuilder().build();
 InstanceAdminClient instanceAdminClient = InstanceAdminClient.create(instanceAdminSettings);

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

InstanceAdminClient.ListInstanceConfigOperationsFixedSizeCollection

InstanceAdminClient.ListInstanceConfigOperationsPage

InstanceAdminClient.ListInstanceConfigOperationsPagedResponse

InstanceAdminClient.ListInstanceConfigsFixedSizeCollection

InstanceAdminClient.ListInstanceConfigsPage

InstanceAdminClient.ListInstanceConfigsPagedResponse

InstanceAdminClient.ListInstancesFixedSizeCollection

InstanceAdminClient.ListInstancesPage

InstanceAdminClient.ListInstancesPagedResponse

InstanceAdminSettings

Settings class to configure an instance of InstanceAdminClient.

The default instance has everything set to sensible defaults:

  • The default service address (spanner.googleapis.com) and default port (443) are used.
  • Credentials are acquired automatically through Application Default Credentials.
  • Retries are configured for idempotent methods but not for non-idempotent methods.

The builder of this class is recursive, so contained classes are themselves builders. When build() is called, the tree of builders is called to create the complete settings object.

For example, to set the total timeout of getInstanceConfig to 30 seconds:


 // 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
 InstanceAdminSettings.Builder instanceAdminSettingsBuilder = InstanceAdminSettings.newBuilder();
 instanceAdminSettingsBuilder
     .getInstanceConfigSettings()
     .setRetrySettings(
         instanceAdminSettingsBuilder
             .getInstanceConfigSettings()
             .getRetrySettings()
             .toBuilder()
             .setTotalTimeout(Duration.ofSeconds(30))
             .build());
 InstanceAdminSettings instanceAdminSettings = instanceAdminSettingsBuilder.build();

InstanceAdminSettings.Builder

Builder for InstanceAdminSettings.