/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE
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* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
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* add the following below this CDDL HEADER, with the fields enclosed
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* by brackets "[]" replaced with your own identifying information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Portions Copyright 2006-2007 Sun Microsystems, Inc.
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*/
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package org.opends.server.replication.protocol;
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import org.opends.server.replication.common.ChangeNumber;
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import org.opends.server.types.Operation;
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/**
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* This class describe the Synchronization context that is attached
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* to each Operation using the SYNCHROCONTEXT key.
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*/
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public abstract class OperationContext
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{
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/**
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* The identifier used to attach the context to operations.
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*/
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public static final String SYNCHROCONTEXT = "synchronizationContext";
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/**
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* The change Number of the Operation.
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*/
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private ChangeNumber changeNumber;
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/**
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* The unique Id of the entry that was modified in the original operation.
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*/
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private String entryUid;
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/**
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* Create a new OperationContext.
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* @param changeNumber The change number of the operation.
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* @param uid The unique Identifier of the modified entry.
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*/
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protected OperationContext(ChangeNumber changeNumber, String uid)
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{
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this.changeNumber = changeNumber;
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this.entryUid = uid;
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}
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/**
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* Gets The change number of the Operation.
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*
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* @return The change number of the Operation.
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*/
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public ChangeNumber getChangeNumber()
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{
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return changeNumber;
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}
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/**
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* Get the unique Identifier of the modified entry.
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*
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* @return the unique Identifier of the modified entry.
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*/
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public String getEntryUid()
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{
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return entryUid;
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}
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/**
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* Get the change number of an operation.
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*
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* @param op The operation.
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* @return The change number of the provided operation, or null if there is
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* no change number associated with the operation.
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*/
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public static ChangeNumber getChangeNumber(Operation op)
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{
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OperationContext ctx = (OperationContext)op.getAttachment(SYNCHROCONTEXT);
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if (ctx == null)
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{
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return null;
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}
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return ctx.changeNumber;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public boolean equals(Object obj)
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{
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if (obj instanceof OperationContext)
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{
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OperationContext ctx = (OperationContext) obj;
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return ((this.changeNumber.equals(ctx.getChangeNumber()) &&
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(this.entryUid.equals(ctx.getEntryUid()))));
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}
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else
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return false;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public int hashCode()
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{
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return changeNumber.hashCode() + entryUid.hashCode();
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}
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}
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