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Java > Open Source Codes > net > sf > javaguard > classfile > SyntheticAttrInfo


1 /**
2  * JavaGuard -- an obfuscation package for Java classfiles.
3  *
4  * Copyright (c) 1999 Mark Welsh (markw@retrologic.com)
5  * Copyright (c) 2002 Thorsten Heit (theit@gmx.de)
6  *
7  * This library is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2 of the License, or (at your option) any later version.
11  *
12  * This library is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with this library; if not, write to the Free Software
19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20  *
21  * The author may be contacted at theit@gmx.de.
22  *
23  *
24  * $Id: SyntheticAttrInfo.java,v 1.2 2002/05/08 11:53:42 glurk Exp $
25  */
26 package net.sf.javaguard.classfile;
27
28 import java.io.*;
29
30
31 /** Representation of an attribute.
32  *
33  * @author <a HREF="mailto:theit@gmx.de">Thorsten Heit</a>
34  * @author <a HREF="mailto:markw@retrologic.com">Mark Welsh</a>
35  */
36 public class SyntheticAttrInfo extends AttrInfo {
37   /** Default constructor that creates a SyntheticAttrInfo object.
38    * @param cf the class file the object belongs to
39    * @param attrNameIndex index into the constant pool
40    * @param attrLength the length of the additional info data in the class file
41    */
42   protected SyntheticAttrInfo(ClassFile cf, int attrNameIndex, int attrLength) {
43     super(cf, attrNameIndex, attrLength);
44   }
45   
46   
47   
48   
49   /** Return the string name of the attribute.
50    * @return string name of the attribute
51    */
52   protected String JavaDoc getAttrName() {
53     return ATTR_Synthetic;
54   }
55   
56   
57   
58   
59   /** Read the data following the header.
60    * @param din the input stream
61    * @throws IOException if an I/O error occurs
62    */
63   protected void readInfo(DataInput din)
64   throws IOException {
65   }
66   
67   
68   /** Export data following the header to a DataOutput stream. Should be
69    * overwritten in subclasses.
70    * @param dout the output stream
71    * @throws IOException if an I/O error occurs
72    */
73   public void writeInfo(DataOutput dout)
74   throws IOException {
75   }
76   
77   
78   
79   
80   /** Dump the content of the entry to the specified file (used for debugging).
81    * @param pw the print writer
82    * @param cf the class file the element belongs to
83    */
84   public void dump(PrintWriter pw, ClassFile cf) {
85     pw.println(getAttrName());
86   }
87 }
88
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