gomp-20050608-branch/libjava/classpath/org/omg/CosNaming/NameComponent.java

   1 /* NameComponent.java --
   2    Copyright (C) 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
  39 package org.omg.CosNaming;
  40
  41 import org.omg.CORBA.portable.IDLEntity;
  42
  43 import java.util.zip.Adler32;
  44
  45 /**
  46  * The name component, a node in the multi-comonent name.
  47  *
  48  * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
  49  */
  50 public final class NameComponent
  51   implements IDLEntity
  52 {
  53   /**
  54    * Use serialVersionUID (v1.4) for interoperability.
  55    */
  56   private static final long serialVersionUID = -1052538183391762390L;
  57
  58   /**
  59    * The name component identifier.
  60    */
  61   public String id;
  62
  63   /**
  64   * The name component kind (this conception is similar to
  65   * the file type conception.
  66   */
  67   public String kind;
  68
  69   /**
  70    * Create the empty name component.
  71    */
  72   public NameComponent()
  73   {
  74   }
  75
  76   /**
  77    * Create the initialised name component.
  78    */
  79   public NameComponent(String _id, String _kind)
  80   {
  81     id = _id;
  82     kind = _kind;
  83   }
  84
  85   /**
  86    * Returns true if both name and kind are equal.
  87    */
  88   public boolean equals(Object other)
  89   {
  90     if (other instanceof NameComponent)
  91       {
  92         NameComponent n = (NameComponent) other;
  93
  94         boolean ieq;
  95         boolean keq;
  96
  97         if (id == null || n.id == null)
  98           ieq = id == n.id;
  99         else
 100           ieq = id.equals(n.id);
 101
 102         if (kind == null || n.kind == null)
 103           keq = kind == n.kind;
 104         else
 105           keq = kind.equals(n.kind);
 106
 107         return keq && ieq;
 108       }
 109     else
 110       return false;
 111   }
 112
 113   /**
 114    * Get a string representation (id.kind).
 115    */
 116   public String toString()
 117   {
 118     return id + "." + kind;
 119   }
 120
 121   /**
 122    * Return the hashCode of this NameComponent.
 123    */
 124   public int hashCode()
 125   {
 126     Adler32 adler = new Adler32();
 127     adler.update(toString().getBytes());
 128     return (int) adler.getValue() & Integer.MAX_VALUE;
 129   }
 130 }