Class WorkflowsClient (2.35.0)

GitHub Repository

Product Reference

REST Documentation

Service Description: Workflows is used to deploy and execute workflow programs. Workflows makes sure the program executes reliably, despite hardware and networking interruptions.

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 (WorkflowsClient workflowsClient = WorkflowsClient.create()) {
   WorkflowName name = WorkflowName.of("[PROJECT]", "[LOCATION]", "[WORKFLOW]");
   Workflow response = workflowsClient.getWorkflow(name);
 }
 

Note: close() needs to be called on the WorkflowsClient 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
ListWorkflows	Lists Workflows in a given project and location. The default order is not specified.	Request object method variants only take one parameter, a request object, which must be constructed before the call. listWorkflows(ListWorkflowsRequest request) "Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method. listWorkflows(LocationName parent) listWorkflows(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. listWorkflowsPagedCallable() listWorkflowsCallable()
GetWorkflow	Gets details of a single Workflow.	Request object method variants only take one parameter, a request object, which must be constructed before the call. getWorkflow(GetWorkflowRequest request) "Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method. getWorkflow(WorkflowName name) getWorkflow(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. getWorkflowCallable()
CreateWorkflow	Creates a new workflow. If a workflow with the specified name already exists in the specified project and location, the long running operation will return ALREADY_EXISTS error.	Request object method variants only take one parameter, a request object, which must be constructed before the call. createWorkflowAsync(CreateWorkflowRequest request) Methods that return long-running operations have "Async" method variants that return OperationFuture, which is used to track polling of the service. createWorkflowAsync(LocationName parent, Workflow workflow, String workflowId) createWorkflowAsync(String parent, Workflow workflow, String workflowId) Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service. createWorkflowOperationCallable() createWorkflowCallable()
DeleteWorkflow	Deletes a workflow with the specified name. This method also cancels and deletes all running executions of the workflow.	Request object method variants only take one parameter, a request object, which must be constructed before the call. deleteWorkflowAsync(DeleteWorkflowRequest request) Methods that return long-running operations have "Async" method variants that return OperationFuture, which is used to track polling of the service. deleteWorkflowAsync(WorkflowName name) deleteWorkflowAsync(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. deleteWorkflowOperationCallable() deleteWorkflowCallable()
UpdateWorkflow	Updates an existing workflow. Running this method has no impact on already running executions of the workflow. A new revision of the workflow may be created as a result of a successful update operation. In that case, such revision will be used in new workflow executions.	Request object method variants only take one parameter, a request object, which must be constructed before the call. updateWorkflowAsync(UpdateWorkflowRequest request) Methods that return long-running operations have "Async" method variants that return OperationFuture, which is used to track polling of the service. updateWorkflowAsync(Workflow workflow, 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. updateWorkflowOperationCallable() updateWorkflowCallable()

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 WorkflowsSettings 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
 WorkflowsSettings workflowsSettings =
     WorkflowsSettings.newBuilder()
         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
         .build();
 WorkflowsClient workflowsClient = WorkflowsClient.create(workflowsSettings);
 

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
 WorkflowsSettings workflowsSettings =
     WorkflowsSettings.newBuilder().setEndpoint(myEndpoint).build();
 WorkflowsClient workflowsClient = WorkflowsClient.create(workflowsSettings);
 

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
 WorkflowsSettings workflowsSettings = WorkflowsSettings.newHttpJsonBuilder().build();
 WorkflowsClient workflowsClient = WorkflowsClient.create(workflowsSettings);
 

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

public static final WorkflowsClient create()

Constructs an instance of WorkflowsClient with default settings.

public static final WorkflowsClient create(WorkflowsSettings settings)

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

public static final WorkflowsClient create(WorkflowsStub stub)

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

protected WorkflowsClient(WorkflowsSettings settings)

Constructs an instance of WorkflowsClient, 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.

protected WorkflowsClient(WorkflowsStub stub)

public boolean awaitTermination(long duration, TimeUnit unit)

public final void close()

public final OperationFuture<Workflow,OperationMetadata> createWorkflowAsync(CreateWorkflowRequest request)

Creates a new workflow. If a workflow with the specified name already exists in the specified project and location, the long running operation will return ALREADY_EXISTS error.

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 (WorkflowsClient workflowsClient = WorkflowsClient.create()) {
   CreateWorkflowRequest request =
       CreateWorkflowRequest.newBuilder()
           .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
           .setWorkflow(Workflow.newBuilder().build())
           .setWorkflowId("workflowId-360387270")
           .build();
   Workflow response = workflowsClient.createWorkflowAsync(request).get();
 }
 

public final OperationFuture<Workflow,OperationMetadata> createWorkflowAsync(LocationName parent, Workflow workflow, String workflowId)

Creates a new workflow. If a workflow with the specified name already exists in the specified project and location, the long running operation will return ALREADY_EXISTS error.

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 (WorkflowsClient workflowsClient = WorkflowsClient.create()) {
   LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
   Workflow workflow = Workflow.newBuilder().build();
   String workflowId = "workflowId-360387270";
   Workflow response = workflowsClient.createWorkflowAsync(parent, workflow, workflowId).get();
 }
 

public final OperationFuture<Workflow,OperationMetadata> createWorkflowAsync(String parent, Workflow workflow, String workflowId)

Creates a new workflow. If a workflow with the specified name already exists in the specified project and location, the long running operation will return ALREADY_EXISTS error.

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 (WorkflowsClient workflowsClient = WorkflowsClient.create()) {
   String parent = LocationName.of("[PROJECT]", "[LOCATION]").toString();
   Workflow workflow = Workflow.newBuilder().build();
   String workflowId = "workflowId-360387270";
   Workflow response = workflowsClient.createWorkflowAsync(parent, workflow, workflowId).get();
 }
 

public final UnaryCallable<CreateWorkflowRequest,Operation> createWorkflowCallable()

Creates a new workflow. If a workflow with the specified name already exists in the specified project and location, the long running operation will return ALREADY_EXISTS error.

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 (WorkflowsClient workflowsClient = WorkflowsClient.create()) {
   CreateWorkflowRequest request =
       CreateWorkflowRequest.newBuilder()
           .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
           .setWorkflow(Workflow.newBuilder().build())
           .setWorkflowId("workflowId-360387270")
           .build();
   ApiFuture<Operation> future = workflowsClient.createWorkflowCallable().futureCall(request);
   // Do something.
   Operation response = future.get();
 }
 

public final OperationCallable<CreateWorkflowRequest,Workflow,OperationMetadata> createWorkflowOperationCallable()

Creates a new workflow. If a workflow with the specified name already exists in the specified project and location, the long running operation will return ALREADY_EXISTS error.

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 (WorkflowsClient workflowsClient = WorkflowsClient.create()) {
   CreateWorkflowRequest request =
       CreateWorkflowRequest.newBuilder()
           .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
           .setWorkflow(Workflow.newBuilder().build())
           .setWorkflowId("workflowId-360387270")
           .build();
   OperationFuture<Workflow, OperationMetadata> future =
       workflowsClient.createWorkflowOperationCallable().futureCall(request);
   // Do something.
   Workflow response = future.get();
 }
 

public final OperationFuture<Empty,OperationMetadata> deleteWorkflowAsync(DeleteWorkflowRequest request)

Deletes a workflow with the specified name. This method also cancels and deletes all running executions of the workflow.

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 (WorkflowsClient workflowsClient = WorkflowsClient.create()) {
   DeleteWorkflowRequest request =
       DeleteWorkflowRequest.newBuilder()
           .setName(WorkflowName.of("[PROJECT]", "[LOCATION]", "[WORKFLOW]").toString())
           .build();
   workflowsClient.deleteWorkflowAsync(request).get();
 }
 

public final OperationFuture<Empty,OperationMetadata> deleteWorkflowAsync(WorkflowName name)

Deletes a workflow with the specified name. This method also cancels and deletes all running executions of the workflow.

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 (WorkflowsClient workflowsClient = WorkflowsClient.create()) {
   WorkflowName name = WorkflowName.of("[PROJECT]", "[LOCATION]", "[WORKFLOW]");
   workflowsClient.deleteWorkflowAsync(name).get();
 }
 

public final OperationFuture<Empty,OperationMetadata> deleteWorkflowAsync(String name)

Deletes a workflow with the specified name. This method also cancels and deletes all running executions of the workflow.

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 (WorkflowsClient workflowsClient = WorkflowsClient.create()) {
   String name = WorkflowName.of("[PROJECT]", "[LOCATION]", "[WORKFLOW]").toString();
   workflowsClient.deleteWorkflowAsync(name).get();
 }
 

public final UnaryCallable<DeleteWorkflowRequest,Operation> deleteWorkflowCallable()

Deletes a workflow with the specified name. This method also cancels and deletes all running executions of the workflow.

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 (WorkflowsClient workflowsClient = WorkflowsClient.create()) {
   DeleteWorkflowRequest request =
       DeleteWorkflowRequest.newBuilder()
           .setName(WorkflowName.of("[PROJECT]", "[LOCATION]", "[WORKFLOW]").toString())
           .build();
   ApiFuture<Operation> future = workflowsClient.deleteWorkflowCallable().futureCall(request);
   // Do something.
   future.get();
 }
 

public final OperationCallable<DeleteWorkflowRequest,Empty,OperationMetadata> deleteWorkflowOperationCallable()

Deletes a workflow with the specified name. This method also cancels and deletes all running executions of the workflow.

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 (WorkflowsClient workflowsClient = WorkflowsClient.create()) {
   DeleteWorkflowRequest request =
       DeleteWorkflowRequest.newBuilder()
           .setName(WorkflowName.of("[PROJECT]", "[LOCATION]", "[WORKFLOW]").toString())
           .build();
   OperationFuture<Empty, OperationMetadata> future =
       workflowsClient.deleteWorkflowOperationCallable().futureCall(request);
   // Do something.
   future.get();
 }
 

public final OperationsClient getHttpJsonOperationsClient()

Returns the OperationsClient that can be used to query the status of a long-running operation returned by another API method call.

public final OperationsClient getOperationsClient()

Returns the OperationsClient that can be used to query the status of a long-running operation returned by another API method call.

public final WorkflowsSettings getSettings()

public WorkflowsStub getStub()

public final Workflow getWorkflow(GetWorkflowRequest request)

Gets details of a single Workflow.

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 (WorkflowsClient workflowsClient = WorkflowsClient.create()) {
   GetWorkflowRequest request =
       GetWorkflowRequest.newBuilder()
           .setName(WorkflowName.of("[PROJECT]", "[LOCATION]", "[WORKFLOW]").toString())
           .build();
   Workflow response = workflowsClient.getWorkflow(request);
 }
 

public final Workflow getWorkflow(WorkflowName name)

Gets details of a single Workflow.

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 (WorkflowsClient workflowsClient = WorkflowsClient.create()) {
   WorkflowName name = WorkflowName.of("[PROJECT]", "[LOCATION]", "[WORKFLOW]");
   Workflow response = workflowsClient.getWorkflow(name);
 }
 

public final Workflow getWorkflow(String name)

Gets details of a single Workflow.

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 (WorkflowsClient workflowsClient = WorkflowsClient.create()) {
   String name = WorkflowName.of("[PROJECT]", "[LOCATION]", "[WORKFLOW]").toString();
   Workflow response = workflowsClient.getWorkflow(name);
 }
 

public final UnaryCallable<GetWorkflowRequest,Workflow> getWorkflowCallable()

Gets details of a single Workflow.

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 (WorkflowsClient workflowsClient = WorkflowsClient.create()) {
   GetWorkflowRequest request =
       GetWorkflowRequest.newBuilder()
           .setName(WorkflowName.of("[PROJECT]", "[LOCATION]", "[WORKFLOW]").toString())
           .build();
   ApiFuture<Workflow> future = workflowsClient.getWorkflowCallable().futureCall(request);
   // Do something.
   Workflow response = future.get();
 }
 

public boolean isShutdown()

public boolean isTerminated()

public final WorkflowsClient.ListWorkflowsPagedResponse listWorkflows(ListWorkflowsRequest request)

Lists Workflows in a given project and location. The default order is not specified.

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 (WorkflowsClient workflowsClient = WorkflowsClient.create()) {
   ListWorkflowsRequest request =
       ListWorkflowsRequest.newBuilder()
           .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .setFilter("filter-1274492040")
           .setOrderBy("orderBy-1207110587")
           .build();
   for (Workflow element : workflowsClient.listWorkflows(request).iterateAll()) {
     // doThingsWith(element);
   }
 }
 

public final WorkflowsClient.ListWorkflowsPagedResponse listWorkflows(LocationName parent)

Lists Workflows in a given project and location. The default order is not specified.

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 (WorkflowsClient workflowsClient = WorkflowsClient.create()) {
   LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
   for (Workflow element : workflowsClient.listWorkflows(parent).iterateAll()) {
     // doThingsWith(element);
   }
 }
 

public final WorkflowsClient.ListWorkflowsPagedResponse listWorkflows(String parent)

Lists Workflows in a given project and location. The default order is not specified.

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 (WorkflowsClient workflowsClient = WorkflowsClient.create()) {
   String parent = LocationName.of("[PROJECT]", "[LOCATION]").toString();
   for (Workflow element : workflowsClient.listWorkflows(parent).iterateAll()) {
     // doThingsWith(element);
   }
 }
 

public final UnaryCallable<ListWorkflowsRequest,ListWorkflowsResponse> listWorkflowsCallable()

Lists Workflows in a given project and location. The default order is not specified.

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 (WorkflowsClient workflowsClient = WorkflowsClient.create()) {
   ListWorkflowsRequest request =
       ListWorkflowsRequest.newBuilder()
           .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .setFilter("filter-1274492040")
           .setOrderBy("orderBy-1207110587")
           .build();
   while (true) {
     ListWorkflowsResponse response = workflowsClient.listWorkflowsCallable().call(request);
     for (Workflow element : response.getWorkflowsList()) {
       // doThingsWith(element);
     }
     String nextPageToken = response.getNextPageToken();
     if (!Strings.isNullOrEmpty(nextPageToken)) {
       request = request.toBuilder().setPageToken(nextPageToken).build();
     } else {
       break;
     }
   }
 }
 

public final UnaryCallable<ListWorkflowsRequest,WorkflowsClient.ListWorkflowsPagedResponse> listWorkflowsPagedCallable()

Lists Workflows in a given project and location. The default order is not specified.

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 (WorkflowsClient workflowsClient = WorkflowsClient.create()) {
   ListWorkflowsRequest request =
       ListWorkflowsRequest.newBuilder()
           .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .setFilter("filter-1274492040")
           .setOrderBy("orderBy-1207110587")
           .build();
   ApiFuture<Workflow> future = workflowsClient.listWorkflowsPagedCallable().futureCall(request);
   // Do something.
   for (Workflow element : future.get().iterateAll()) {
     // doThingsWith(element);
   }
 }
 

public void shutdown()

public void shutdownNow()

public final OperationFuture<Workflow,OperationMetadata> updateWorkflowAsync(UpdateWorkflowRequest request)

Updates an existing workflow. Running this method has no impact on already running executions of the workflow. A new revision of the workflow may be created as a result of a successful update operation. In that case, such revision will be used in new workflow executions.

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 (WorkflowsClient workflowsClient = WorkflowsClient.create()) {
   UpdateWorkflowRequest request =
       UpdateWorkflowRequest.newBuilder()
           .setWorkflow(Workflow.newBuilder().build())
           .setUpdateMask(FieldMask.newBuilder().build())
           .build();
   Workflow response = workflowsClient.updateWorkflowAsync(request).get();
 }
 

public final OperationFuture<Workflow,OperationMetadata> updateWorkflowAsync(Workflow workflow, FieldMask updateMask)

Updates an existing workflow. Running this method has no impact on already running executions of the workflow. A new revision of the workflow may be created as a result of a successful update operation. In that case, such revision will be used in new workflow executions.

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 (WorkflowsClient workflowsClient = WorkflowsClient.create()) {
   Workflow workflow = Workflow.newBuilder().build();
   FieldMask updateMask = FieldMask.newBuilder().build();
   Workflow response = workflowsClient.updateWorkflowAsync(workflow, updateMask).get();
 }
 

public final UnaryCallable<UpdateWorkflowRequest,Operation> updateWorkflowCallable()

Updates an existing workflow. Running this method has no impact on already running executions of the workflow. A new revision of the workflow may be created as a result of a successful update operation. In that case, such revision will be used in new workflow executions.

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 (WorkflowsClient workflowsClient = WorkflowsClient.create()) {
   UpdateWorkflowRequest request =
       UpdateWorkflowRequest.newBuilder()
           .setWorkflow(Workflow.newBuilder().build())
           .setUpdateMask(FieldMask.newBuilder().build())
           .build();
   ApiFuture<Operation> future = workflowsClient.updateWorkflowCallable().futureCall(request);
   // Do something.
   Operation response = future.get();
 }
 

public final OperationCallable<UpdateWorkflowRequest,Workflow,OperationMetadata> updateWorkflowOperationCallable()

Updates an existing workflow. Running this method has no impact on already running executions of the workflow. A new revision of the workflow may be created as a result of a successful update operation. In that case, such revision will be used in new workflow executions.

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 (WorkflowsClient workflowsClient = WorkflowsClient.create()) {
   UpdateWorkflowRequest request =
       UpdateWorkflowRequest.newBuilder()
           .setWorkflow(Workflow.newBuilder().build())
           .setUpdateMask(FieldMask.newBuilder().build())
           .build();
   OperationFuture<Workflow, OperationMetadata> future =
       workflowsClient.updateWorkflowOperationCallable().futureCall(request);
   // Do something.
   Workflow response = future.get();
 }