org.apache.flink.runtime.schedule.ConcurrentSchedulingGroup Maven / Gradle / Ivy
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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,
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* See the License for the specific language governing permissions and
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*/
package org.apache.flink.runtime.schedule;
import org.apache.flink.runtime.executiongraph.ExecutionVertex;
import java.util.List;
import java.util.concurrent.atomic.AtomicBoolean;
/**
* ConcurrentSchedulingGroup contains the execution vertices which should be scheduled at the same time.
*/
public class ConcurrentSchedulingGroup {
private final List executionVertices;
private final boolean hasPrecedingGroup;
private final AtomicBoolean scheduled;
ConcurrentSchedulingGroup(
List executionVertices,
boolean hasPrecedingGroup) {
this(executionVertices, hasPrecedingGroup, false);
}
ConcurrentSchedulingGroup(
List executionVertices,
boolean hasPrecedingGroup,
boolean scheduled) {
this.executionVertices = executionVertices;
this.hasPrecedingGroup = hasPrecedingGroup;
this.scheduled = new AtomicBoolean(scheduled);
}
public List getExecutionVertices() {
return executionVertices;
}
public boolean hasPrecedingGroup() {
return hasPrecedingGroup;
}
public boolean markScheduled() {
return scheduled.compareAndSet(false, true);
}
}