org.apache.flink.runtime.operators.util.LocalStrategy 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
* limitations under the License.
*/
package org.apache.flink.runtime.operators.util;
/**
* Enumeration of all available local processing strategies tasks.
*/
public enum LocalStrategy
{
// no special local strategy is applied
NONE(false, false),
// the input is sorted
SORT(true, true),
// the input is sorted, during sorting a combiner is applied
COMBININGSORT(true, true);
// --------------------------------------------------------------------------------------------
private final boolean dams;
private boolean requiresComparator;
private LocalStrategy(boolean dams, boolean requiresComparator) {
this.dams = dams;
this.requiresComparator = requiresComparator;
}
public boolean dams() {
return this.dams;
}
public boolean requiresComparator() {
return this.requiresComparator;
}
}