org.apache.flink.runtime.executiongraph.failover.flip1.FailoverTopology 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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*/
package org.apache.flink.runtime.executiongraph.failover.flip1;
/**
* Represents a topology.
*/
public interface FailoverTopology {
/**
* Returns an iterable over all vertices, topologically sorted.
*
* @return topologically sorted iterable over all vertices
*/
Iterable getFailoverVertices();
/**
* Returns whether the topology contains co-location constraints.
* Co-location constraints are currently used for iterations.
*
* @return whether the topology contains co-location constraints
*/
boolean containsCoLocationConstraints();
}