Class WorkflowTemplateServiceClient (2.31.0)

The API interface for managing Workflow Templates in the Dataproc API.

Equality

Instances of this class created via copy-construction or copy-assignment always compare equal. Instances created with equal std::shared_ptr<*Connection> objects compare equal. Objects that compare equal share the same underlying resources.

Performance

Creating a new instance of this class is a relatively expensive operation, new objects establish new connections to the service. In contrast, copy-construction, move-construction, and the corresponding assignment operations are relatively efficient as the copies share all underlying resources.

Thread Safety

Concurrent access to different instances of this class, even if they compare equal, is guaranteed to work. Two or more threads operating on the same instance of this class is not guaranteed to work. Since copy-construction and move-construction is a relatively efficient operation, consider using such a copy when using this class from multiple threads.

Constructors

WorkflowTemplateServiceClient(WorkflowTemplateServiceClient const &)

Copy and move support

Parameter
Name	Description
	`WorkflowTemplateServiceClient const &`

WorkflowTemplateServiceClient(WorkflowTemplateServiceClient &&)

Copy and move support

Parameter
Name	Description
	`WorkflowTemplateServiceClient &&`

WorkflowTemplateServiceClient(std::shared_ptr< WorkflowTemplateServiceConnection >, Options)

Parameters
Name	Description
`connection`	`std::shared_ptr< WorkflowTemplateServiceConnection >`
`opts`	`Options`

Operators

operator=(WorkflowTemplateServiceClient const &)

Copy and move support

Parameter
Name	Description
	`WorkflowTemplateServiceClient const &`

Returns
Type	Description
`WorkflowTemplateServiceClient &`

operator=(WorkflowTemplateServiceClient &&)

Copy and move support

Parameter
Name	Description
	`WorkflowTemplateServiceClient &&`

Returns
Type	Description
`WorkflowTemplateServiceClient &`

Functions

CreateWorkflowTemplate(std::string const &, google::cloud::dataproc::v1::WorkflowTemplate const &, Options)

Creates new workflow template.

Parameters
Name	Description
`parent`	`std::string const &` Required. The resource name of the region or location, as described in https://cloud.google.com/apis/design/resource_names. For `projects.regions.workflowTemplates.create`, the resource name of the region has the following format: `projects/{project_id}/regions/{region}` For `projects.locations.workflowTemplates.create`, the resource name of the location has the following format: `projects/{project_id}/locations/{location}`
`template_`	`google::cloud::dataproc::v1::WorkflowTemplate const &` Required. The Dataproc workflow template to create.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::cloud::dataproc::v1::WorkflowTemplate >`	the result of the RPC. The response message type (google.cloud.dataproc.v1.WorkflowTemplate) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

CreateWorkflowTemplate(google::cloud::dataproc::v1::CreateWorkflowTemplateRequest const &, Options)

Creates new workflow template.

Parameters
Name	Description
`request`	`google::cloud::dataproc::v1::CreateWorkflowTemplateRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.cloud.dataproc.v1.CreateWorkflowTemplateRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::cloud::dataproc::v1::WorkflowTemplate >`	the result of the RPC. The response message type (google.cloud.dataproc.v1.WorkflowTemplate) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

GetWorkflowTemplate(std::string const &, Options)

Retrieves the latest workflow template.

Can retrieve previously instantiated template by specifying optional version parameter.

Parameters

Name Description

name

std::string const &

Required. The resource name of the workflow template, as described in https://cloud.google.com/apis/design/resource_names.

For projects.regions.workflowTemplates.get, the resource name of the template has the following format: projects/{project_id}/regions/{region}/workflowTemplates/{template_id}
For projects.locations.workflowTemplates.get, the resource name of the template has the following format: projects/{project_id}/locations/{location}/workflowTemplates/{template_id}

opts

Options

Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::cloud::dataproc::v1::WorkflowTemplate >`	the result of the RPC. The response message type (google.cloud.dataproc.v1.WorkflowTemplate) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

GetWorkflowTemplate(google::cloud::dataproc::v1::GetWorkflowTemplateRequest const &, Options)

Retrieves the latest workflow template.

Can retrieve previously instantiated template by specifying optional version parameter.

Parameters
Name	Description
`request`	`google::cloud::dataproc::v1::GetWorkflowTemplateRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.cloud.dataproc.v1.GetWorkflowTemplateRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::cloud::dataproc::v1::WorkflowTemplate >`	the result of the RPC. The response message type (google.cloud.dataproc.v1.WorkflowTemplate) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

InstantiateWorkflowTemplate(std::string const &, Options)

Instantiates a template and begins execution.

The returned Operation can be used to track execution of workflow by polling operations.get. The Operation will complete when entire workflow is finished.

The running workflow can be aborted via operations.cancel. This will cause any inflight jobs to be cancelled and workflow-owned clusters to be deleted.

The Operation.metadata will be WorkflowMetadata. Also see Using WorkflowMetadata.

On successful completion, Operation.response will be Empty.

Parameters

Name Description

name

std::string const &

Required. The resource name of the workflow template, as described in https://cloud.google.com/apis/design/resource_names.

For projects.regions.workflowTemplates.instantiate, the resource name of the template has the following format: projects/{project_id}/regions/{region}/workflowTemplates/{template_id}
For projects.locations.workflowTemplates.instantiate, the resource name of the template has the following format: projects/{project_id}/locations/{location}/workflowTemplates/{template_id}

opts

Options

Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::cloud::dataproc::v1::WorkflowMetadata > >

A future that becomes satisfied when the LRO (Long Running Operation) completes or the polling policy in effect for this call is exhausted. The future is satisfied with an error if the LRO completes with an error or the polling policy is exhausted. In this case the StatusOr returned by the future contains the error. If the LRO completes successfully the value of the future contains the LRO's result. For this RPC the result is a google.cloud.dataproc.v1.WorkflowMetadata proto message. The C++ class representing this message is created by Protobuf, using the Protobuf mapping rules.

InstantiateWorkflowTemplate(NoAwaitTag, std::string const &, Options)

Instantiates a template and begins execution.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`NoAwaitTag`
`name`	`std::string const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

InstantiateWorkflowTemplate(std::string const &, std::map< std::string, std::string > const &, Options)

Instantiates a template and begins execution.

The returned Operation can be used to track execution of workflow by polling operations.get. The Operation will complete when entire workflow is finished.

The running workflow can be aborted via operations.cancel. This will cause any inflight jobs to be cancelled and workflow-owned clusters to be deleted.

The Operation.metadata will be WorkflowMetadata. Also see Using WorkflowMetadata.

On successful completion, Operation.response will be Empty.

Parameters
Name	Description
`name`	`std::string const &` Required. The resource name of the workflow template, as described in https://cloud.google.com/apis/design/resource_names. For `projects.regions.workflowTemplates.instantiate`, the resource name of the template has the following format: `projects/{project_id}/regions/{region}/workflowTemplates/{template_id}` For `projects.locations.workflowTemplates.instantiate`, the resource name of the template has the following format: `projects/{project_id}/locations/{location}/workflowTemplates/{template_id}`
`parameters`	`std::map< std::string, std::string > const &` Optional. Map from parameter names to values that should be used for those parameters. Values may not exceed 1000 characters.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::cloud::dataproc::v1::WorkflowMetadata > >

InstantiateWorkflowTemplate(NoAwaitTag, std::string const &, std::map< std::string, std::string > const &, Options)

Instantiates a template and begins execution.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`NoAwaitTag`
`name`	`std::string const &`
`parameters`	`std::map< std::string, std::string > const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

InstantiateWorkflowTemplate(google::cloud::dataproc::v1::InstantiateWorkflowTemplateRequest const &, Options)

Instantiates a template and begins execution.

The returned Operation can be used to track execution of workflow by polling operations.get. The Operation will complete when entire workflow is finished.

The running workflow can be aborted via operations.cancel. This will cause any inflight jobs to be cancelled and workflow-owned clusters to be deleted.

The Operation.metadata will be WorkflowMetadata. Also see Using WorkflowMetadata.

On successful completion, Operation.response will be Empty.

Parameters
Name	Description
`request`	`google::cloud::dataproc::v1::InstantiateWorkflowTemplateRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.cloud.dataproc.v1.InstantiateWorkflowTemplateRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::cloud::dataproc::v1::WorkflowMetadata > >

InstantiateWorkflowTemplate(NoAwaitTag, google::cloud::dataproc::v1::InstantiateWorkflowTemplateRequest const &, Options)

Instantiates a template and begins execution.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`NoAwaitTag`
`request`	`google::cloud::dataproc::v1::InstantiateWorkflowTemplateRequest const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

InstantiateWorkflowTemplate(google::longrunning::Operation const &, Options)

Instantiates a template and begins execution.

This method accepts a google::longrunning::Operation that corresponds to a previously started Long Running Operation (LRO) and polls the status of the LRO in the background.

Parameters
Name	Description
`operation`	`google::longrunning::Operation const &`
`opts`	`Options`

Returns
Type	Description
`future< StatusOr< google::cloud::dataproc::v1::WorkflowMetadata > >`

InstantiateInlineWorkflowTemplate(std::string const &, google::cloud::dataproc::v1::WorkflowTemplate const &, Options)

Instantiates a template and begins execution.

This method is equivalent to executing the sequence CreateWorkflowTemplate, InstantiateWorkflowTemplate, DeleteWorkflowTemplate.

The returned Operation can be used to track execution of workflow by polling operations.get. The Operation will complete when entire workflow is finished.

The running workflow can be aborted via operations.cancel. This will cause any inflight jobs to be cancelled and workflow-owned clusters to be deleted.

The Operation.metadata will be WorkflowMetadata. Also see Using WorkflowMetadata.

On successful completion, Operation.response will be Empty.

Parameters
Name	Description
`parent`	`std::string const &` Required. The resource name of the region or location, as described in https://cloud.google.com/apis/design/resource_names. For `projects.regions.workflowTemplates,instantiateinline`, the resource name of the region has the following format: `projects/{project_id}/regions/{region}` For `projects.locations.workflowTemplates.instantiateinline`, the resource name of the location has the following format: `projects/{project_id}/locations/{location}`
`template_`	`google::cloud::dataproc::v1::WorkflowTemplate const &` Required. The workflow template to instantiate.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::cloud::dataproc::v1::WorkflowMetadata > >

InstantiateInlineWorkflowTemplate(NoAwaitTag, std::string const &, google::cloud::dataproc::v1::WorkflowTemplate const &, Options)

Instantiates a template and begins execution.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`NoAwaitTag`
`parent`	`std::string const &`
`template_`	`google::cloud::dataproc::v1::WorkflowTemplate const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

InstantiateInlineWorkflowTemplate(google::cloud::dataproc::v1::InstantiateInlineWorkflowTemplateRequest const &, Options)

Instantiates a template and begins execution.

This method is equivalent to executing the sequence CreateWorkflowTemplate, InstantiateWorkflowTemplate, DeleteWorkflowTemplate.

The returned Operation can be used to track execution of workflow by polling operations.get. The Operation will complete when entire workflow is finished.

The running workflow can be aborted via operations.cancel. This will cause any inflight jobs to be cancelled and workflow-owned clusters to be deleted.

The Operation.metadata will be WorkflowMetadata. Also see Using WorkflowMetadata.

On successful completion, Operation.response will be Empty.

Parameters
Name	Description
`request`	`google::cloud::dataproc::v1::InstantiateInlineWorkflowTemplateRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.cloud.dataproc.v1.InstantiateInlineWorkflowTemplateRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::cloud::dataproc::v1::WorkflowMetadata > >

InstantiateInlineWorkflowTemplate(NoAwaitTag, google::cloud::dataproc::v1::InstantiateInlineWorkflowTemplateRequest const &, Options)

Instantiates a template and begins execution.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`NoAwaitTag`
`request`	`google::cloud::dataproc::v1::InstantiateInlineWorkflowTemplateRequest const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

InstantiateInlineWorkflowTemplate(google::longrunning::Operation const &, Options)

Instantiates a template and begins execution.

This method accepts a google::longrunning::Operation that corresponds to a previously started Long Running Operation (LRO) and polls the status of the LRO in the background.

Parameters
Name	Description
`operation`	`google::longrunning::Operation const &`
`opts`	`Options`

Returns
Type	Description
`future< StatusOr< google::cloud::dataproc::v1::WorkflowMetadata > >`

UpdateWorkflowTemplate(google::cloud::dataproc::v1::WorkflowTemplate const &, Options)

Updates (replaces) workflow template.

The updated template must contain version that matches the current server version.

Parameters
Name	Description
`template_`	`google::cloud::dataproc::v1::WorkflowTemplate const &` Required. The updated workflow template. The `template.version` field must match the current version.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::cloud::dataproc::v1::WorkflowTemplate >`	the result of the RPC. The response message type (google.cloud.dataproc.v1.WorkflowTemplate) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

UpdateWorkflowTemplate(google::cloud::dataproc::v1::UpdateWorkflowTemplateRequest const &, Options)

Updates (replaces) workflow template.

The updated template must contain version that matches the current server version.

Parameters
Name	Description
`request`	`google::cloud::dataproc::v1::UpdateWorkflowTemplateRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.cloud.dataproc.v1.UpdateWorkflowTemplateRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::cloud::dataproc::v1::WorkflowTemplate >`	the result of the RPC. The response message type (google.cloud.dataproc.v1.WorkflowTemplate) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

ListWorkflowTemplates(std::string const &, Options)

Lists workflows that match the specified filter in the request.

Parameters

Name Description

parent

std::string const &

Required. The resource name of the region or location, as described in https://cloud.google.com/apis/design/resource_names.

For projects.regions.workflowTemplates,list, the resource name of the region has the following format: projects/{project_id}/regions/{region}
For projects.locations.workflowTemplates.list, the resource name of the location has the following format: projects/{project_id}/locations/{location}

opts

Options

Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

StreamRange< google::cloud::dataproc::v1::WorkflowTemplate >

a StreamRange to iterate of the results. See the documentation of this type for details. In brief, this class has begin() and end() member functions returning a iterator class meeting the input iterator requirements. The value type for this iterator is a StatusOr as the iteration may fail even after some values are retrieved successfully, for example, if there is a network disconnect. An empty set of results does not indicate an error, it indicates that there are no resources meeting the request criteria. On a successful iteration the StatusOr<T> contains elements of type google.cloud.dataproc.v1.WorkflowTemplate, or rather, the C++ class generated by Protobuf from that type. Please consult the Protobuf documentation for details on the Protobuf mapping rules.

ListWorkflowTemplates(google::cloud::dataproc::v1::ListWorkflowTemplatesRequest, Options)

Lists workflows that match the specified filter in the request.

Parameters
Name	Description
`request`	`google::cloud::dataproc::v1::ListWorkflowTemplatesRequest` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.cloud.dataproc.v1.ListWorkflowTemplatesRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

StreamRange< google::cloud::dataproc::v1::WorkflowTemplate >

DeleteWorkflowTemplate(std::string const &, Options)

Deletes a workflow template.

It does not cancel in-progress workflows.

Parameters

Name Description

name

std::string const &

Required. The resource name of the workflow template, as described in https://cloud.google.com/apis/design/resource_names.

For projects.regions.workflowTemplates.delete, the resource name of the template has the following format: projects/{project_id}/regions/{region}/workflowTemplates/{template_id}
For projects.locations.workflowTemplates.instantiate, the resource name of the template has the following format: projects/{project_id}/locations/{location}/workflowTemplates/{template_id}

opts

Options

Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`Status`	a `Status` object. If the request failed, the status contains the details of the failure.

DeleteWorkflowTemplate(google::cloud::dataproc::v1::DeleteWorkflowTemplateRequest const &, Options)

Deletes a workflow template.

It does not cancel in-progress workflows.

Parameters
Name	Description
`request`	`google::cloud::dataproc::v1::DeleteWorkflowTemplateRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.cloud.dataproc.v1.DeleteWorkflowTemplateRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`Status`	a `Status` object. If the request failed, the status contains the details of the failure.

SetIamPolicy(google::iam::v1::SetIamPolicyRequest const &, Options)

Sets the access control policy on the specified resource.

Replaces any existing policy.

Can return NOT_FOUND, INVALID_ARGUMENT, and PERMISSION_DENIED errors.

Parameters
Name	Description
`request`	`google::iam::v1::SetIamPolicyRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.iam.v1.SetIamPolicyRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::iam::v1::Policy >`	the result of the RPC. The response message type (google.iam.v1.Policy) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

GetIamPolicy(google::iam::v1::GetIamPolicyRequest const &, Options)

Gets the access control policy for a resource.

Returns an empty policy if the resource exists and does not have a policy set.

Parameters
Name	Description
`request`	`google::iam::v1::GetIamPolicyRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.iam.v1.GetIamPolicyRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::iam::v1::Policy >`	the result of the RPC. The response message type (google.iam.v1.Policy) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

TestIamPermissions(google::iam::v1::TestIamPermissionsRequest const &, Options)

Returns permissions that a caller has on the specified resource.

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.

Parameters
Name	Description
`request`	`google::iam::v1::TestIamPermissionsRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.iam.v1.TestIamPermissionsRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::iam::v1::TestIamPermissionsResponse >`	the result of the RPC. The response message type (google.iam.v1.TestIamPermissionsResponse) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

ListOperations(std::string const &, std::string const &, Options)

Lists operations that match the specified filter in the request.

If the server doesn't support this method, it returns UNIMPLEMENTED.

NOTE: the name binding allows API services to override the binding to use different resource name schemes, such as users/*/operations. To override the binding, API services can add a binding such as "/v1/{name=users/*}/operations" to their service configuration. For backwards compatibility, the default name includes the operations collection id, however overriding users must ensure the name binding is the parent resource, without the operations collection id.

Parameters
Name	Description
`name`	`std::string const &` The name of the operation's parent resource.
`filter`	`std::string const &` The standard list filter.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

StreamRange< google::longrunning::Operation >

a StreamRange to iterate of the results. See the documentation of this type for details. In brief, this class has begin() and end() member functions returning a iterator class meeting the input iterator requirements. The value type for this iterator is a StatusOr as the iteration may fail even after some values are retrieved successfully, for example, if there is a network disconnect. An empty set of results does not indicate an error, it indicates that there are no resources meeting the request criteria. On a successful iteration the StatusOr<T> contains elements of type google.longrunning.Operation, or rather, the C++ class generated by Protobuf from that type. Please consult the Protobuf documentation for details on the Protobuf mapping rules.

ListOperations(google::longrunning::ListOperationsRequest, Options)

Lists operations that match the specified filter in the request.

If the server doesn't support this method, it returns UNIMPLEMENTED.

Parameters
Name	Description
`request`	`google::longrunning::ListOperationsRequest` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.longrunning.ListOperationsRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

StreamRange< google::longrunning::Operation >

a StreamRange to iterate of the results. See the documentation of this type for details. In brief, this class has begin() and end() member functions returning a iterator class meeting the input iterator requirements. The value type for this iterator is a StatusOr as the iteration may fail even after some values are retrieved successfully, for example, if there is a network disconnect. An empty set of results does not indicate an error, it indicates that there are no resources meeting the request criteria. On a successful iteration the StatusOr<T> contains elements of type google.longrunning.Operation, or rather, the C++ class generated by Protobuf from that type. Please consult the Protobuf documentation for details on the Protobuf mapping rules.

GetOperation(std::string const &, Options)

Gets the latest state of a long-running operation.

Clients can use this method to poll the operation result at intervals as recommended by the API service.

Parameters
Name	Description
`name`	`std::string const &` The name of the operation resource.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`	the result of the RPC. The response message type (google.longrunning.Operation) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

GetOperation(google::longrunning::GetOperationRequest const &, Options)

Gets the latest state of a long-running operation.

Clients can use this method to poll the operation result at intervals as recommended by the API service.

Parameters
Name	Description
`request`	`google::longrunning::GetOperationRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.longrunning.GetOperationRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`	the result of the RPC. The response message type (google.longrunning.Operation) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

DeleteOperation(std::string const &, Options)

Deletes a long-running operation.

This method indicates that the client is no longer interested in the operation result. It does not cancel the operation. If the server doesn't support this method, it returns google.rpc.Code.UNIMPLEMENTED.

Parameters
Name	Description
`name`	`std::string const &` The name of the operation resource to be deleted.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`Status`	a `Status` object. If the request failed, the status contains the details of the failure.

DeleteOperation(google::longrunning::DeleteOperationRequest const &, Options)

Deletes a long-running operation.

Parameters
Name	Description
`request`	`google::longrunning::DeleteOperationRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.longrunning.DeleteOperationRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`Status`	a `Status` object. If the request failed, the status contains the details of the failure.

CancelOperation(std::string const &, Options)

Starts asynchronous cancellation on a long-running operation.

The server makes a best effort to cancel the operation, but success is not guaranteed. If the server doesn't support this method, it returns google.rpc.Code.UNIMPLEMENTED. Clients can use Operations.GetOperation or other methods to check whether the cancellation succeeded or whether the operation completed despite cancellation. On successful cancellation, the operation is not deleted; instead, it becomes an operation with an Operation.error value with a google.rpc.Status.code of 1, corresponding to Code.CANCELLED.

Parameters
Name	Description
`name`	`std::string const &` The name of the operation resource to be cancelled.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`Status`	a `Status` object. If the request failed, the status contains the details of the failure.

CancelOperation(google::longrunning::CancelOperationRequest const &, Options)

Starts asynchronous cancellation on a long-running operation.

Parameters
Name	Description
`request`	`google::longrunning::CancelOperationRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.longrunning.CancelOperationRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`Status`	a `Status` object. If the request failed, the status contains the details of the failure.