org.apache.flink.runtime.state.PhysicalStateHandleID 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.state;
import org.apache.flink.util.StringBasedID;
/**
* Unique ID that allows for physical comparison between state handles.
*
* Different state objects (e.g. different files) representing the same piece of data must have
* different IDs (e.g. file names). This is different from {@link
* org.apache.flink.runtime.state.KeyedStateHandle#getStateHandleId} which returns the same ID.
*
* @see StateHandleID
*/
public class PhysicalStateHandleID extends StringBasedID {
private static final long serialVersionUID = 1L;
public PhysicalStateHandleID(String keyString) {
super(keyString);
}
}