org.apache.hadoop.yarn.api.records.Priority 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.hadoop.yarn.api.records;
import org.apache.hadoop.classification.InterfaceAudience.Public;
import org.apache.hadoop.classification.InterfaceStability.Stable;
import org.apache.hadoop.yarn.util.Records;
/**
* The priority assigned to a ResourceRequest or Application or Container
* allocation
*
*/
@Public
@Stable
public abstract class Priority implements Comparable {
public static final Priority UNDEFINED = newInstance(-1);
@Public
@Stable
public static Priority newInstance(int p) {
Priority priority = Records.newRecord(Priority.class);
priority.setPriority(p);
return priority;
}
/**
* Get the assigned priority
* @return the assigned priority
*/
@Public
@Stable
public abstract int getPriority();
/**
* Set the assigned priority
* @param priority the assigned priority
*/
@Public
@Stable
public abstract void setPriority(int priority);
@Override
public int hashCode() {
final int prime = 517861;
int result = 9511;
result = prime * result + getPriority();
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Priority other = (Priority) obj;
if (getPriority() != other.getPriority())
return false;
return true;
}
@Override
public int compareTo(Priority other) {
return other.getPriority() - this.getPriority();
}
@Override
public String toString() {
return "{Priority: " + getPriority() + "}";
}
}