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Java > Open Source Codes > com > jeantessier > classreader > ConstantValue_attribute


1 /*
2  * Copyright (c) 2001-2005, Jean Tessier
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  *
9  * * Redistributions of source code must retain the above copyright
10  * notice, this list of conditions and the following disclaimer.
11  *
12  * * Redistributions in binary form must reproduce the above copyright
13  * notice, this list of conditions and the following disclaimer in the
14  * documentation and/or other materials provided with the distribution.
15  *
16  * * Neither the name of Jean Tessier nor the names of his contributors
17  * may be used to endorse or promote products derived from this software
18  * without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR
24  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
26  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
27  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
28  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
29  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
30  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  */
32
33 package com.jeantessier.classreader;
34
35 import java.io.*;
36
37 import org.apache.log4j.*;
38
39 public class ConstantValue_attribute extends Attribute_info {
40     private int valueIndex;
41
42     public ConstantValue_attribute(Classfile classfile, Visitable owner, DataInputStream in) throws IOException {
43         super(classfile, owner);
44
45         int byteCount = in.readInt();
46         Logger.getLogger(getClass()).debug("Attribute length: " + byteCount);
47
48         valueIndex = in.readUnsignedShort();
49         Logger.getLogger(getClass()).debug("Constant value: " + getRawValue());
50     }
51
52     public int getValueIndex() {
53         return valueIndex;
54     }
55
56     public ConstantPoolEntry getRawValue() {
57         return (ConstantPoolEntry) getClassfile().getConstantPool().get(getValueIndex());
58     }
59
60     public String JavaDoc toString() {
61         return "ConstantValue " + getRawValue();
62     }
63
64     public void accept(Visitor visitor) {
65         visitor.visitConstantValue_attribute(this);
66     }
67 }
68
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