001 /* 002 * CDDL HEADER START 003 * 004 * The contents of this file are subject to the terms of the 005 * Common Development and Distribution License, Version 1.0 only 006 * (the "License"). You may not use this file except in compliance 007 * with the License. 008 * 009 * You can obtain a copy of the license at 010 * trunk/opends/resource/legal-notices/OpenDS.LICENSE 011 * or https://OpenDS.dev.java.net/OpenDS.LICENSE. 012 * See the License for the specific language governing permissions 013 * and limitations under the License. 014 * 015 * When distributing Covered Code, include this CDDL HEADER in each 016 * file and include the License file at 017 * trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable, 018 * add the following below this CDDL HEADER, with the fields enclosed 019 * by brackets "[]" replaced with your own identifying information: 020 * Portions Copyright [yyyy] [name of copyright owner] 021 * 022 * CDDL HEADER END 023 * 024 * 025 * Copyright 2006-2008 Sun Microsystems, Inc. 026 */ 027 package org.opends.server.replication.server; 028 029 import java.util.Comparator; 030 031 import org.opends.server.replication.common.ChangeNumber; 032 033 /** 034 * This Class define a Comparator that allows to know which ReplicationIterator 035 * contain the next UpdateMessage in the order defined by the ChangeNumber 036 * of the UpdateMessage. 037 */ 038 public class ReplicationIteratorComparator 039 implements Comparator<ReplicationIterator> 040 { 041 /** 042 * Compare the ChangeNumber of the ReplicationIterator. 043 * 044 * @param o1 first ReplicationIterator. 045 * @param o2 second ReplicationIterator. 046 * @return result of the comparison. 047 */ 048 public int compare(ReplicationIterator o1, ReplicationIterator o2) 049 { 050 ChangeNumber csn1 = o1.getChange().getChangeNumber(); 051 ChangeNumber csn2 = o2.getChange().getChangeNumber(); 052 053 return ChangeNumber.compare(csn1, csn2); 054 } 055 }