| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.beam.runners.fnexecution; |
| |
| import org.apache.beam.vendor.grpc.v1p21p0.io.grpc.BindableService; |
| |
| /** An interface sharing common behavior with services used during execution of user Fns. */ |
| public interface FnService extends AutoCloseable, BindableService { |
| /** |
| * {@inheritDoc}. |
| * |
| * <p>There should be no more calls to any service method by the time a call to {@link #close()} |
| * begins. Specifically, this means that a {@link |
| * org.apache.beam.vendor.grpc.v1p21p0.io.grpc.Server} that this service is bound to should have |
| * completed a call to the {@link org.apache.beam.vendor.grpc.v1p21p0.io.grpc.Server#shutdown()} |
| * method, and all future incoming calls will be rejected. |
| */ |
| @Override |
| void close() throws Exception; |
| } |