001/** 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018package org.apache.hadoop.yarn.api.records; 019 020import org.apache.hadoop.classification.InterfaceAudience.Public; 021import org.apache.hadoop.classification.InterfaceAudience.Private; 022import org.apache.hadoop.classification.InterfaceStability.Evolving; 023import org.apache.hadoop.classification.InterfaceStability.Unstable; 024import org.apache.hadoop.yarn.util.Records; 025 026/** 027 * Specific container requested back by the <code>ResourceManager</code>. 028 * @see PreemptionContract 029 * @see StrictPreemptionContract 030 */ 031@Public 032@Evolving 033public abstract class PreemptionContainer { 034 035 @Private 036 @Unstable 037 public static PreemptionContainer newInstance(ContainerId id) { 038 PreemptionContainer container = Records.newRecord(PreemptionContainer.class); 039 container.setId(id); 040 return container; 041 } 042 043 /** 044 * @return Container referenced by this handle. 045 */ 046 @Public 047 @Evolving 048 public abstract ContainerId getId(); 049 050 @Private 051 @Unstable 052 public abstract void setId(ContainerId id); 053 054}