001/* NameComponent.java -- 002 Copyright (C) 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. */ 037 038 039package org.omg.CosNaming; 040 041import org.omg.CORBA.portable.IDLEntity; 042 043import 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 */ 050public 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}