old-autovect-branch/libjava/classpath/javax/print/attribute/URISyntax.java

   1 /* URISyntax.java --
   2    Copyright (C) 2003, 2005 Free Software Foundation, Inc.
   3
   4 This file is part of GNU Classpath.
   5
   6 GNU Classpath is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU Classpath is distributed in the hope that it will be useful, but
  12 WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Classpath; see the file COPYING.  If not, write to the
  18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19 02110-1301 USA.
  20
  21 Linking this library statically or dynamically with other modules is
  22 making a combined work based on this library.  Thus, the terms and
  23 conditions of the GNU General Public License cover the whole
  24 combination.
  25
  26 As a special exception, the copyright holders of this library give you
  27 permission to link this library with independent modules to produce an
  28 executable, regardless of the license terms of these independent
  29 modules, and to copy and distribute the resulting executable under
  30 terms of your choice, provided that you also meet, for each linked
  31 independent module, the terms and conditions of the license of that
  32 module.  An independent module is a module which is not derived from
  33 or based on this library.  If you modify this library, you may extend
  34 this exception to your version of the library, but you are not
  35 obligated to do so.  If you do not wish to do so, delete this
  36 exception statement from your version. */
  37
  38 package javax.print.attribute;
  39
  40 import java.io.Serializable;
  41 import java.net.URI;
  42
  43 /**
  44  * <code>URISyntax</code> is the abstract base class of all attribute
  45  * classes having an Uniform Resource Identifier URI as value.
  46  *
  47  * @author Michael Koch (konqueror@gmx.de)
  48  */
  49 public abstract class URISyntax
  50   implements Cloneable, Serializable
  51 {
  52   private static final long serialVersionUID = -7842661210486401678L;
  53
  54   private URI uri;
  55
  56   /**
  57    * Creates a <code>URISyntax</code> object.
  58    *
  59    * @param uri the URI value for the syntax
  60    *
  61    * @exception NullPointerException if uri is null
  62    */
  63   protected URISyntax(URI uri)
  64   {
  65     if (uri == null)
  66       throw new NullPointerException("uri may not be null");
  67
  68     this.uri = uri;
  69   }
  70
  71   /**
  72    * Tests if the given object is equal to this object.
  73    *
  74    * @param obj the object to test
  75    *
  76    * @return <code>true</code> if both objects are equal,
  77    * <code>false</code> otherwise.
  78    */
  79   public boolean equals(Object obj)
  80   {
  81     if (! (obj instanceof URISyntax))
  82       return false;
  83
  84     return uri.equals(((URISyntax) obj).getURI());
  85   }
  86
  87   /**
  88    * Returns the URI value of this syntax object.
  89    *
  90    * @return The URI.
  91    */
  92   public URI getURI()
  93   {
  94     return uri;
  95   }
  96
  97   /**
  98    * Returns the hashcode for this object.
  99    *
 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 }