public final OperationCallable<UpdateExternalAddressRequest, ExternalAddress, OperationMetadata>
      updateExternalAddressOperationCallable() {
    return stub.updateExternalAddressOperationCallable();
  }
Updates the parameters of a single external IP address. Only fields specified in `update_mask`
are applied.

<p>During operation processing, the resource is temporarily in the `ACTIVE` state before the
operation fully completes. For that period of time, you can't update the resource. Use the
operation status to determine when the processing fully completes.

<p>Sample code:

<pre>{@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 (VmwareEngineClient vmwareEngineClient = VmwareEngineClient.create()) {
  UpdateExternalAddressRequest request =
      UpdateExternalAddressRequest.newBuilder()
          .setUpdateMask(FieldMask.newBuilder().build())
          .setExternalAddress(ExternalAddress.newBuilder().build())
          .setRequestId("requestId693933066")
          .build();
  OperationFuture<ExternalAddress, OperationMetadata> future =
      vmwareEngineClient.updateExternalAddressOperationCallable().futureCall(request);
  // Do something.
  ExternalAddress response = future.get();
}
}</pre>
java-vmwareengine/google-cloud-vmwareengine/src/main/java/com/google/cloud/vmwareengine/v1/VmwareEngineClient.java