| /** |
| * 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.api.AMRMProtocol; |
| |
| /** |
| * <p><code>Resource</code> models a set of computer resources in the |
| * cluster.</p> |
| * |
| * <p>Currrently it only models <em>memory</em>.</p> |
| * |
| * <p>Typically, applications request <code>Resource</code> of suitable |
| * capability to run their component tasks.</p> |
| * |
| * @see ResourceRequest |
| * @see AMRMProtocol#allocate(org.apache.hadoop.yarn.api.protocolrecords.AllocateRequest) |
| */ |
| @Public |
| @Stable |
| public abstract class Resource implements Comparable<Resource> { |
| |
| /** |
| * Get <em>memory</em> of the resource. |
| * @return <em>memory</em> of the resource |
| */ |
| @Public |
| @Stable |
| public abstract int getMemory(); |
| |
| /** |
| * Set <em>memory</em> of the resource. |
| * @param memory <em>memory</em> of the resource |
| */ |
| @Public |
| @Stable |
| public abstract void setMemory(int memory); |
| |
| @Override |
| public int hashCode() { |
| final int prime = 31; |
| int result = 1; |
| result = prime * result + getMemory(); |
| return result; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) |
| return true; |
| if (obj == null) |
| return false; |
| if (getClass() != obj.getClass()) |
| return false; |
| Resource other = (Resource) obj; |
| if (getMemory() != other.getMemory()) |
| return false; |
| return true; |
| } |
| |
| @Override |
| public String toString() { |
| return "memory: " + getMemory(); |
| } |
| } |