Source for javax.naming.Reference

   1: /* Reference.java --
   2:    Copyright (C) 2000, 2001, 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 javax.naming;
  40: 
  41: import java.io.Serializable;
  42: import java.util.Enumeration;
  43: import java.util.Vector;
  44: 
  45: /**
  46:  * @author Tom Tromey (tromey@redhat.com)
  47:  * @date May 16, 2001
  48:  */
  49: public class Reference implements Cloneable, Serializable
  50: {
  51:   public Reference (String className)
  52:   {
  53:     this.className = className;
  54:     addrs = new Vector ();
  55:   }
  56: 
  57:   public Reference (String className, RefAddr addr)
  58:   {
  59:     this.className = className;
  60:     addrs = new Vector ();
  61:     addrs.add (addr);
  62:   }
  63: 
  64:   public Reference (String className, String factory, String factoryLocation)
  65:   {
  66:     this.className = className;
  67:     this.classFactory = factory;
  68:     this.classFactoryLocation = factoryLocation;
  69:     addrs = new Vector ();
  70:   }
  71: 
  72:   public Reference (String className, RefAddr addr,
  73:             String factory, String factoryLocation)
  74:   {
  75:     this.className = className;
  76:     this.classFactory = factory;
  77:     this.classFactoryLocation = factoryLocation;
  78:     addrs = new Vector ();
  79:     addrs.add (addr);
  80:   }
  81: 
  82:   public void add (int posn, RefAddr addr)
  83:   {
  84:     addrs.add (posn, addr);
  85:   }
  86: 
  87:   public void add (RefAddr addr)
  88:   {
  89:     addrs.add (addr);
  90:   }
  91: 
  92:   public void clear ()
  93:   {
  94:     addrs.clear ();
  95:   }
  96: 
  97:   public Object clone ()
  98:   {
  99:     Reference r = new Reference (className, classFactory,
 100:                  classFactoryLocation);
 101:     r.addrs = (Vector) addrs.clone ();
 102:     return r;
 103:   }
 104: 
 105:   // Convenience function.
 106:   private boolean equals (String a, String b)
 107:   {
 108:     return (a == null) ? (b == null) : a.equals (b);
 109:   }
 110: 
 111:   public boolean equals (Object obj)
 112:   {
 113:     if (! (obj instanceof Reference))
 114:       return false;
 115:     Reference r = (Reference) obj;
 116:     return (equals (classFactory, r.classFactory)
 117:         && equals (classFactoryLocation, r.classFactoryLocation)
 118:         && equals (className, r.className)
 119:         && addrs.equals (r.addrs));
 120:   }
 121: 
 122:   public RefAddr get (int posn)
 123:   {
 124:     return (RefAddr) addrs.get (posn);
 125:   }
 126: 
 127:   public RefAddr get (String addrType)
 128:   {
 129:     for (int i = 0; i < addrs.size (); ++i)
 130:       {
 131:     RefAddr r = (RefAddr) addrs.get (i);
 132:     if (addrType.equals (r.getType ()))
 133:       return r;
 134:       }
 135:     return null;
 136:   }
 137: 
 138:   public Enumeration getAll ()
 139:   {
 140:     return addrs.elements ();
 141:   }
 142: 
 143:   public String getClassName ()
 144:   {
 145:     return className;
 146:   }
 147: 
 148:   public String getFactoryClassLocation ()
 149:   {
 150:     return classFactoryLocation;
 151:   }
 152: 
 153:   public String getFactoryClassName ()
 154:   {
 155:     return classFactory;
 156:   }
 157: 
 158:   public int hashCode ()
 159:   {
 160:     // The spec says the hash code is the sum of the hash codes of the
 161:     // addresses.  It does not mention the other fields.
 162:     int h = 0;
 163:     for (int i = 0; i < addrs.size (); ++i)
 164:       h += addrs.get (i).hashCode ();
 165:     return h;
 166:   }
 167: 
 168:   public Object remove (int posn)
 169:   {
 170:     return addrs.remove (posn);
 171:   }
 172: 
 173:   public int size ()
 174:   {
 175:     return addrs.size ();
 176:   }
 177: 
 178:   public String toString ()
 179:   {
 180:     String x = getClass ().toString () + "[";
 181:     for (int i = 0; i < addrs.size (); ++i)
 182:       {
 183:     if (i > 0)
 184:       x += ",";
 185:     x += addrs.get (i).toString ();
 186:       }
 187:     return x + "]";
 188:   }
 189: 
 190:   protected Vector addrs;
 191:   protected String classFactory;
 192:   protected String classFactoryLocation;
 193:   protected String className;
 194: }