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.plugin;
028
029 import org.opends.server.replication.common.ChangeNumber;
030 import org.opends.server.types.AttributeValue;
031
032 /**
033 * Allows to store historical information about specific values
034 * for a given attribute.
035 */
036 public class ValueInfo
037 {
038 private AttributeValue value;
039 private ChangeNumber valueDeleteTime;
040 private ChangeNumber valueUpdateTime;
041
042 /**
043 * Build a new ValueInfo.
044 * @param value value for which ValueInfo is built
045 * @param CNupdate last time when value was updated last
046 * @param CNdelete last time when value for deleted
047 */
048 public ValueInfo(AttributeValue value,
049 ChangeNumber CNupdate,
050 ChangeNumber CNdelete)
051 {
052 this.value = value;
053 this.valueUpdateTime = CNupdate;
054 this.valueDeleteTime = CNdelete;
055 }
056
057 /**
058 * Compares this object with another ValueInfo object.
059 * Object are said equals when their values matches.
060 * @param obj object to be compared with this object
061 * @return true if equal, false otherwise
062 */
063 @Override
064 public boolean equals(Object obj)
065 {
066 if (obj instanceof ValueInfo)
067 {
068 ValueInfo objVal = (ValueInfo) obj;
069 return (value.equals(objVal.getValue()));
070 }
071 else
072 {
073 return false;
074 }
075 }
076
077 /**
078 * calculates the hasCode for this object.
079 * Only value is used when calculating the hashCode
080 * @return the hashcode
081 */
082 @Override
083 public int hashCode()
084 {
085 return value.hashCode();
086 }
087
088 /**
089 * Get the last time when the value was deleted.
090 * @return the last time when the value was deleted
091 */
092 public ChangeNumber getValueDeleteTime()
093 {
094 return valueDeleteTime;
095 }
096
097 /**
098 * Get the last time when the value was updated.
099 * @return the last time when the value was updated
100 */
101 public ChangeNumber getValueUpdateTime()
102 {
103 return valueUpdateTime;
104 }
105
106 /**
107 * Get the value for which this ValueInfo was generated.
108 * @return the value for which this ValueInfo was generated
109 */
110 public AttributeValue getValue()
111 {
112 return value;
113 }
114
115 /**
116 * Check if the value associated with this ValueInfo was updated.
117 * @return true if the value associated with this ValueInfo was updated
118 */
119 public boolean isUpdate()
120 {
121 if (valueUpdateTime != null)
122 return true;
123 else
124 return false;
125 }
126 }