| /* |
| * 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.flink.runtime.checkpoint; |
| |
| import org.apache.flink.api.common.JobStatus; |
| |
| /** |
| * This class represents a {@link CheckpointIDCounter} if checkpointing is deactivated. |
| * Consequently, no component should use methods of this class other than {@link #start()} and |
| * {@link #shutdown}. |
| */ |
| public enum DeactivatedCheckpointIDCounter implements CheckpointIDCounter { |
| INSTANCE; |
| |
| @Override |
| public void start() throws Exception {} |
| |
| @Override |
| public void shutdown(JobStatus jobStatus) throws Exception {} |
| |
| @Override |
| public long getAndIncrement() throws Exception { |
| throw new UnsupportedOperationException( |
| "The DeactivatedCheckpointIDCounter cannot serve checkpoint ids."); |
| } |
| |
| @Override |
| public long get() { |
| throw new UnsupportedOperationException( |
| "The DeactivatedCheckpointIDCounter cannot serve checkpoint ids."); |
| } |
| |
| @Override |
| public void setCount(long newId) throws Exception { |
| throw new UnsupportedOperationException( |
| "The DeactivatedCheckpointIDCounter cannot serve checkpoint ids."); |
| } |
| } |