/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at
* trunk/opends/resource/legal-notices/OpenDS.LICENSE
* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at
* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
* add the following below this CDDL HEADER, with the fields enclosed
* by brackets "[]" replaced with your own identifying information:
* Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*
*
* Copyright 2006-2008 Sun Microsystems, Inc.
*/
package org.opends.server.replication.server;
import java.util.Comparator;
import org.opends.server.replication.common.ChangeNumber;
/**
* This Class define a Comparator that allows to know which ReplicationIterator
* contain the next UpdateMessage in the order defined by the ChangeNumber
* of the UpdateMessage.
*/
public class ReplicationIteratorComparator
implements Comparator<ReplicationIterator>
{
/**
* Compare the ChangeNumber of the ReplicationIterator.
*
* @param o1 first ReplicationIterator.
* @param o2 second ReplicationIterator.
* @return result of the comparison.
*/
public int compare(ReplicationIterator o1, ReplicationIterator o2)
{
ChangeNumber csn1 = o1.getChange().getChangeNumber();
ChangeNumber csn2 = o2.getChange().getChangeNumber();
return ChangeNumber.compare(csn1, csn2);
}
}