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Java > Open Source Codes > com > caucho > bytecode > Utf8Constant


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  * Free SoftwareFoundation, Inc.
23  * 59 Temple Place, Suite 330
24  * Boston, MA 02111-1307 USA
25  *
26  * @author Scott Ferguson
27  */
28
29 package com.caucho.bytecode;
30
31 import com.caucho.log.Log;
32
33 import java.io.IOException JavaDoc;
34 import java.util.logging.Logger JavaDoc;
35
36 /**
37  * Represents a utf-8n constant.
38  */
39 public class Utf8Constant extends ConstantPoolEntry {
40   static private final Logger JavaDoc log = Log.open(Utf8Constant.class);
41
42   private String JavaDoc _value;
43
44   /**
45    * Creates a new integer constant.
46    */
47   Utf8Constant(ConstantPool pool, int index, String JavaDoc value)
48   {
49     super(pool, index);
50
51     _value = value;
52   }
53
54   /**
55    * Returns the value;
56    */
57   public String JavaDoc getValue()
58   {
59     return _value;
60   }
61
62   /**
63    * Sets the value;
64    */
65   public void setValue(String JavaDoc value)
66   {
67     _value = value;
68   }
69
70   /**
71    * Writes the contents of the pool entry.
72    */
73   void write(ByteCodeWriter out)
74     throws IOException JavaDoc
75   {
76     out.write(ConstantPool.CP_UTF8);
77     out.writeUTF8(_value);
78   }
79
80   /**
81    * Exports to the target pool.
82    */
83   public int export(ConstantPool target)
84   {
85     return target.addUTF8(_value).getIndex();
86   }
87
88   public String JavaDoc toString()
89   {
90     return "Utf8Constant[" + _value + "]";
91   }
92 }
93
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