001/* URISyntax.java -- 002 Copyright (C) 2003, 2005 Free Software Foundation, Inc. 003 004This file is part of GNU Classpath. 005 006GNU Classpath is free software; you can redistribute it and/or modify 007it under the terms of the GNU General Public License as published by 008the Free Software Foundation; either version 2, or (at your option) 009any later version. 010 011GNU Classpath is distributed in the hope that it will be useful, but 012WITHOUT ANY WARRANTY; without even the implied warranty of 013MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014General Public License for more details. 015 016You should have received a copy of the GNU General Public License 017along with GNU Classpath; see the file COPYING. If not, write to the 018Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 01902110-1301 USA. 020 021Linking this library statically or dynamically with other modules is 022making a combined work based on this library. Thus, the terms and 023conditions of the GNU General Public License cover the whole 024combination. 025 026As a special exception, the copyright holders of this library give you 027permission to link this library with independent modules to produce an 028executable, regardless of the license terms of these independent 029modules, and to copy and distribute the resulting executable under 030terms of your choice, provided that you also meet, for each linked 031independent module, the terms and conditions of the license of that 032module. An independent module is a module which is not derived from 033or based on this library. If you modify this library, you may extend 034this exception to your version of the library, but you are not 035obligated to do so. If you do not wish to do so, delete this 036exception statement from your version. */ 037 038package javax.print.attribute; 039 040import java.io.Serializable; 041import java.net.URI; 042 043/** 044 * <code>URISyntax</code> is the abstract base class of all attribute 045 * classes having an Uniform Resource Identifier URI as value. 046 * 047 * @author Michael Koch (konqueror@gmx.de) 048 */ 049public abstract class URISyntax 050 implements Cloneable, Serializable 051{ 052 private static final long serialVersionUID = -7842661210486401678L; 053 054 private URI uri; 055 056 /** 057 * Creates a <code>URISyntax</code> object. 058 * 059 * @param uri the URI value for the syntax 060 * 061 * @exception NullPointerException if uri is null 062 */ 063 protected URISyntax(URI uri) 064 { 065 if (uri == null) 066 throw new NullPointerException("uri may not be null"); 067 068 this.uri = uri; 069 } 070 071 /** 072 * Tests if the given object is equal to this object. 073 * 074 * @param obj the object to test 075 * 076 * @return <code>true</code> if both objects are equal, 077 * <code>false</code> otherwise. 078 */ 079 public boolean equals(Object obj) 080 { 081 if (! (obj instanceof URISyntax)) 082 return false; 083 084 return uri.equals(((URISyntax) obj).getURI()); 085 } 086 087 /** 088 * Returns the URI value of this syntax object. 089 * 090 * @return The URI. 091 */ 092 public URI getURI() 093 { 094 return uri; 095 } 096 097 /** 098 * Returns the hashcode for this object. 099 * 100 * @return The hashcode. 101 */ 102 public int hashCode() 103 { 104 return uri.hashCode(); 105 } 106 107 /** 108 * Returns the string representation for this object. 109 * 110 * @return The string representation. 111 */ 112 public String toString() 113 { 114 return uri.toString(); 115 } 116}