org.apache.flink.migration.streaming.runtime.tasks.StreamTaskState 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.migration.streaming.runtime.tasks;
import org.apache.flink.annotation.Internal;
import org.apache.flink.migration.runtime.state.KvStateSnapshot;
import org.apache.flink.migration.runtime.state.StateHandle;
import java.io.Closeable;
import java.io.IOException;
import java.io.Serializable;
import java.util.HashMap;
@Deprecated
@Internal
public class StreamTaskState implements Serializable, Closeable {
private static final long serialVersionUID = 1L;
private StateHandle operatorState;
private StateHandle functionState;
private HashMap> kvStates;
// ------------------------------------------------------------------------
public StateHandle getOperatorState() {
return operatorState;
}
public void setOperatorState(StateHandle operatorState) {
this.operatorState = operatorState;
}
public StateHandle getFunctionState() {
return functionState;
}
public void setFunctionState(StateHandle functionState) {
this.functionState = functionState;
}
public HashMap> getKvStates() {
return kvStates;
}
public void setKvStates(HashMap> kvStates) {
this.kvStates = kvStates;
}
// ------------------------------------------------------------------------
/**
* Checks if this state object actually contains any state, or if all of the state
* fields are null.
*
* @return True, if all state is null, false if at least one state is not null.
*/
public boolean isEmpty() {
return operatorState == null & functionState == null & kvStates == null;
}
@Override
public void close() throws IOException {
}
}