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Java > Open Source Codes > com > caucho > bytecode > ClassConstant


1 /*
2  * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3  *
4  * This file is part of Resin(R) Open Source
5  *
6  * Each copy or derived work must preserve the copyright notice and this
7  * notice unmodified.
8  *
9  * Resin Open Source is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * Resin Open Source is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17  * of NON-INFRINGEMENT. See the GNU General Public License for more
18  * details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with Resin Open Source; if not, write to the
22  *
23  * Free Software Foundation, Inc.
24  * 59 Temple Place, Suite 330
25  * Boston, MA 02111-1307 USA
26  *
27  * @author Scott Ferguson
28  */
29
30 package com.caucho.bytecode;
31
32 import com.caucho.log.Log;
33
34 import java.io.IOException JavaDoc;
35 import java.util.logging.Logger JavaDoc;
36
37 /**
38  * Represents a class in the constant pool.
39  */
40 public class ClassConstant extends ConstantPoolEntry {
41   static private final Logger JavaDoc log = Log.open(ClassConstant.class);
42
43   private int _nameIndex;
44
45   /**
46    * Creates a new field ref constant.
47    */
48   ClassConstant(ConstantPool pool, int index, int nameIndex)
49   {
50     super(pool, index);
51
52     _nameIndex = nameIndex;
53   }
54
55   /**
56    * Returns the name.
57    */
58   public String JavaDoc getName()
59   {
60     return getConstantPool().getUtf8(_nameIndex).getValue();
61   }
62
63   /**
64    * Returns the name index.
65    */
66   public int getNameIndex()
67   {
68     return _nameIndex;
69   }
70
71   /**
72    * Sets the name index.
73    */
74   public void setNameIndex(int index)
75   {
76     _nameIndex = index;
77   }
78
79   /**
80    * Writes the contents of the pool entry.
81    */
82   void write(ByteCodeWriter out)
83     throws IOException JavaDoc
84   {
85     out.write(ConstantPool.CP_CLASS);
86     out.writeShort(_nameIndex);
87   }
88
89   /**
90    * Exports to the target pool.
91    */
92   public int export(ConstantPool target)
93   {
94     return target.addClass(getName()).getIndex();
95   }
96
97   public String JavaDoc toString()
98   {
99     return "ClassConstant[" + getName() + "]";
100   }
101 }
102
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