001 /* NameComponent.java --
002 Copyright (C) 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
039 package org.omg.CosNaming;
040
041 import org.omg.CORBA.portable.IDLEntity;
042
043 import java.util.zip.Adler32;
044
045 /**
046 * The name component, a node in the multi-comonent name.
047 *
048 * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
049 */
050 public final class NameComponent
051 implements IDLEntity
052 {
053 /**
054 * Use serialVersionUID (v1.4) for interoperability.
055 */
056 private static final long serialVersionUID = -1052538183391762390L;
057
058 /**
059 * The name component identifier.
060 */
061 public String id;
062
063 /**
064 * The name component kind (this conception is similar to
065 * the file type conception.
066 */
067 public String kind;
068
069 /**
070 * Create the empty name component.
071 */
072 public NameComponent()
073 {
074 }
075
076 /**
077 * Create the initialised name component.
078 */
079 public NameComponent(String _id, String _kind)
080 {
081 id = _id;
082 kind = _kind;
083 }
084
085 /**
086 * Returns true if both name and kind are equal.
087 */
088 public boolean equals(Object other)
089 {
090 if (other instanceof NameComponent)
091 {
092 NameComponent n = (NameComponent) other;
093
094 boolean ieq;
095 boolean keq;
096
097 if (id == null || n.id == null)
098 ieq = id == n.id;
099 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 }