org.apache.flink.runtime.io.network.api.EndOfSuperstepEvent 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.io.network.api;
import org.apache.flink.core.memory.DataInputView;
import org.apache.flink.core.memory.DataOutputView;
import org.apache.flink.runtime.event.RuntimeEvent;
/**
* Marks the end of a superstep of one particular iteration superstep.
*/
public class EndOfSuperstepEvent extends RuntimeEvent {
/** The singleton instance of this event. */
public static final EndOfSuperstepEvent INSTANCE = new EndOfSuperstepEvent();
// ------------------------------------------------------------------------
/** This class is not meant to be instantiated. */
private EndOfSuperstepEvent() {}
// ------------------------------------------------------------------------
@Override
public void write(DataOutputView out) {}
@Override
public void read(DataInputView in) {}
// ------------------------------------------------------------------------
@Override
public int hashCode() {
return 41;
}
@Override
public boolean equals(Object obj) {
return obj != null && obj.getClass() == EndOfSuperstepEvent.class;
}
@Override
public String toString() {
return getClass().getSimpleName();
}
}