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 }