001 /* URISyntax.java --
002 Copyright (C) 2003, 2005 Free Software Foundation, Inc.
003
004 This file is part of GNU Classpath.
005
006 GNU Classpath is free software; you can redistribute it and/or modify
007 it under the terms of the GNU General Public License as published by
008 the Free Software Foundation; either version 2, or (at your option)
009 any later version.
010
011 GNU Classpath is distributed in the hope that it will be useful, but
012 WITHOUT ANY WARRANTY; without even the implied warranty of
013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
014 General Public License for more details.
015
016 You should have received a copy of the GNU General Public License
017 along with GNU Classpath; see the file COPYING. If not, write to the
018 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
019 02110-1301 USA.
020
021 Linking this library statically or dynamically with other modules is
022 making a combined work based on this library. Thus, the terms and
023 conditions of the GNU General Public License cover the whole
024 combination.
025
026 As a special exception, the copyright holders of this library give you
027 permission to link this library with independent modules to produce an
028 executable, regardless of the license terms of these independent
029 modules, and to copy and distribute the resulting executable under
030 terms of your choice, provided that you also meet, for each linked
031 independent module, the terms and conditions of the license of that
032 module. An independent module is a module which is not derived from
033 or based on this library. If you modify this library, you may extend
034 this exception to your version of the library, but you are not
035 obligated to do so. If you do not wish to do so, delete this
036 exception statement from your version. */
037
038 package javax.print.attribute;
039
040 import java.io.Serializable;
041 import 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 */
049 public 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 }