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LocalStateHandle.java
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LocalStateHandle.java
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/*
* 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 java.io.Serializable;
/**
* A StateHandle that includes the operator states directly.
*/
public class LocalStateHandle<T extends Serializable> implements StateHandle<T> {
private static final long serialVersionUID = 2093619217898039610L;
private final T state;
public LocalStateHandle(T state) {
this.state = state;
}
@Override
public T getState() {
return state;
}
@Override
public void discardState() throws Exception {
}
public static class LocalStateHandleProvider<R extends Serializable> implements
StateHandleProvider<R> {
private static final long serialVersionUID = 4665419208932921425L;
@Override
public LocalStateHandle<R> createStateHandle(R state) {
return new LocalStateHandle<R>(state);
}
}
}