public static interface OperationsGrpc.AsyncService Manages long-running operations with an API service.
When an API method normally takes long time to complete, it can be designed
to return Operation to the client, and the
client can use this interface to receive the real response asynchronously by
polling the operation resource, or pass the operation resource to another API
(such as Pub/Sub API) to receive the response. Any API service that returns
long-running operations should implement the Operations interface so
developers can have a consistent client experience.
Methods
cancelOperation(CancelOperationRequest request, StreamObserver<Empty> responseObserver)
public default void cancelOperation(CancelOperationRequest request, StreamObserver<Empty> responseObserver) 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 |
request |
CancelOperationRequest |
responseObserver |
io.grpc.stub.StreamObserver<Empty> |
deleteOperation(DeleteOperationRequest request, StreamObserver<Empty> responseObserver)
public default void deleteOperation(DeleteOperationRequest request, StreamObserver<Empty> responseObserver) 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 |
request |
DeleteOperationRequest |
responseObserver |
io.grpc.stub.StreamObserver<Empty> |
getOperation(GetOperationRequest request, StreamObserver<Operation> responseObserver)
public default void getOperation(GetOperationRequest request, StreamObserver<Operation> responseObserver)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 |
GetOperationRequest |
responseObserver |
io.grpc.stub.StreamObserver<Operation> |
listOperations(ListOperationsRequest request, StreamObserver<ListOperationsResponse> responseObserver)
public default void listOperations(ListOperationsRequest request, StreamObserver<ListOperationsResponse> responseObserver) 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 |
ListOperationsRequest |
responseObserver |
io.grpc.stub.StreamObserver<ListOperationsResponse> |
waitOperation(WaitOperationRequest request, StreamObserver<Operation> responseObserver)
public default void waitOperation(WaitOperationRequest request, StreamObserver<Operation> responseObserver) Waits until the specified long-running operation is done or reaches at most
a specified timeout, returning the latest state. If the operation is
already done, the latest state is immediately returned. If the timeout
specified is greater than the default HTTP/RPC timeout, the HTTP/RPC
timeout is used. If the server does not support this method, it returns
google.rpc.Code.UNIMPLEMENTED.
Note that this method is on a best-effort basis. It may return the latest
state before the specified timeout (including immediately), meaning even an
immediate response is no guarantee that the operation is done.
| Parameters | |
|---|---|
| Name | Description |
request |
WaitOperationRequest |
responseObserver |
io.grpc.stub.StreamObserver<Operation> |