org.apache.flink.runtime.io.network.api.EndOfPartitionEvent 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;
/**
* This event marks a subpartition as fully consumed.
*/
public class EndOfPartitionEvent extends RuntimeEvent {
/** The singleton instance of this event. */
public static final EndOfPartitionEvent INSTANCE = new EndOfPartitionEvent();
// ------------------------------------------------------------------------
// not instantiable
private EndOfPartitionEvent() {}
// ------------------------------------------------------------------------
@Override
public void read(DataInputView in) {
// Nothing to do here
}
@Override
public void write(DataOutputView out) {
// Nothing to do here
}
// ------------------------------------------------------------------------
@Override
public int hashCode() {
return 1965146673;
}
@Override
public boolean equals(Object obj) {
return obj != null && obj.getClass() == EndOfPartitionEvent.class;
}
@Override
public String toString() {
return getClass().getSimpleName();
}
}