001 /* 002 * JBoss, Home of Professional Open Source. 003 * Copyright 2008, Red Hat Middleware LLC, and individual contributors 004 * as indicated by the @author tags. See the copyright.txt file in the 005 * distribution for a full listing of individual contributors. 006 * 007 * This is free software; you can redistribute it and/or modify it 008 * under the terms of the GNU Lesser General Public License as 009 * published by the Free Software Foundation; either version 2.1 of 010 * the License, or (at your option) any later version. 011 * 012 * This software is distributed in the hope that it will be useful, 013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 015 * Lesser General Public License for more details. 016 * 017 * You should have received a copy of the GNU Lesser General Public 018 * License along with this software; if not, write to the Free 019 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 020 * 02110-1301 USA, or see the FSF site: http://www.fsf.org. 021 */ 022 package org.jboss.dna.graph.properties.basic; 023 024 import java.util.UUID; 025 import net.jcip.annotations.Immutable; 026 import org.jboss.dna.common.text.TextEncoder; 027 import org.jboss.dna.graph.properties.Path; 028 import org.jboss.dna.graph.properties.Reference; 029 030 /** 031 * @author Randall Hauch 032 */ 033 @Immutable 034 public class UuidReference implements Reference { 035 036 /** 037 */ 038 private static final long serialVersionUID = 2299467578161645109L; 039 private UUID uuid; 040 041 public UuidReference( UUID uuid ) { 042 this.uuid = uuid; 043 } 044 045 /** 046 * @return uuid 047 */ 048 public UUID getUuid() { 049 return this.uuid; 050 } 051 052 /** 053 * {@inheritDoc} 054 */ 055 public String getString() { 056 return this.uuid.toString(); 057 } 058 059 /** 060 * {@inheritDoc} 061 */ 062 public String getString( TextEncoder encoder ) { 063 if (encoder == null) encoder = Path.DEFAULT_ENCODER; 064 return encoder.encode(getString()); 065 } 066 067 /** 068 * {@inheritDoc} 069 */ 070 public int compareTo( Reference that ) { 071 if (this == that) return 0; 072 if (that instanceof UuidReference) { 073 return this.uuid.compareTo(((UuidReference)that).getUuid()); 074 } 075 return this.getString().compareTo(that.getString()); 076 } 077 078 /** 079 * {@inheritDoc} 080 */ 081 @Override 082 public boolean equals( Object obj ) { 083 if (obj == this) return true; 084 if (obj instanceof UuidReference) { 085 return this.uuid.equals(((UuidReference)obj).getUuid()); 086 } 087 if (obj instanceof Reference) { 088 return this.getString().equals(((Reference)obj).getString()); 089 } 090 return super.equals(obj); 091 } 092 093 /** 094 * {@inheritDoc} 095 */ 096 @Override 097 public String toString() { 098 return this.uuid.toString(); 099 } 100 101 }