org.apache.flink.runtime.executiongraph.restart.NoRestartStrategy Maven / Gradle / Ivy
/*
* 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.executiongraph.restart;
import org.apache.flink.configuration.Configuration;
import org.apache.flink.runtime.concurrent.ScheduledExecutor;
import org.apache.flink.runtime.executiongraph.ExecutionGraph;
import java.util.concurrent.CompletableFuture;
/**
* Restart strategy which does not restart an {@link ExecutionGraph}.
*/
public class NoRestartStrategy implements RestartStrategy {
@Override
public boolean canRestart() {
return false;
}
@Override
public CompletableFuture restart(RestartCallback restarter, ScheduledExecutor executor) {
throw new UnsupportedOperationException("NoRestartStrategy does not support restart.");
}
/**
* Creates a NoRestartStrategyFactory instance.
*
* @param configuration Configuration object which is ignored
* @return NoRestartStrategyFactory instance
*/
public static NoRestartStrategyFactory createFactory(Configuration configuration) {
return new NoRestartStrategyFactory();
}
@Override
public String toString() {
return "NoRestartStrategy";
}
public static class NoRestartStrategyFactory extends RestartStrategyFactory {
private static final long serialVersionUID = -1809462525812787862L;
@Override
public RestartStrategy createRestartStrategy() {
return new NoRestartStrategy();
}
}
}