Source code: com/chaoswg/xtc4y/classdesc/LongCPEntry.java
1 //$Header: /cvsroot/xtc4y/xtc4y/src/com/chaoswg/xtc4y/classdesc/LongCPEntry.java,v 1.1.1.1 2003/08/07 13:40:28 toggm Exp $
2 /******************************************************************************
3 * XTC4y - eXtreme Testing Collection 4 you *
4 * -------------------------------------------------------------------------- *
5 * URL: http://www.chaoswg.com/xtc4y *
6 * Author: Mike Toggweiler (2.dog@gmx.ch) *
7 * *
8 * Last Updated: $Date: 2003/08/07 13:40:28 $, by $Author: toggm $ *
9 * Version: $Revision: 1.1.1.1 $ *
10 * -------------------------------------------------------------------------- *
11 * COPYRIGHT: (c) 2003 by Mike Toggweiler *
12 * *
13 * This program is free software; you can redistribute it and/or modify *
14 * it under the terms of the GNU General Public License as published by *
15 * the Free Software Foundation; either version 2 of the License, or *
16 * (at your option) any later version. *
17 *****************************************************************************/
18 package com.chaoswg.xtc4y.classdesc;
19
20 import java.io.DataInputStream;
21 import java.io.DataOutputStream;
22 import java.io.IOException;
23
24 /**
25 * this class represent a Long constant pool entry
26 * @author Mike Toggweiler
27 **/
28 public class LongCPEntry extends WideValueCPEntry {
29 /**
30 * The tag identifying a Long cp entry
31 **/
32 public static final byte TAG = 5;
33
34 private long value;
35
36 /**
37 * Construct a new long CP entry with a long value
38 **/
39 public LongCPEntry(long value) {
40 super(TAG);
41 this.value = value;
42 }
43
44 /**
45 * Creates a new long contantpool entry and initalizes it from a
46 * DataInputStream
47 * @param dis the DataInputStream to read from
48 **/
49 protected LongCPEntry(DataInputStream dis)
50 throws IOException {
51 super(TAG);
52 int high = dis.readInt();
53 int low = dis.readInt();
54 value =((long) high << 32) + low ;
55 }
56
57 /**
58 * Resolve the internal stored indices thorugh the Constantpool
59 * @param cp the constantpool to resolve indices
60 **/
61 protected void resolve(ConstantPool cp) {
62 }
63
64 /**
65 * Write the type specific constant pool entry information onto a
66 * DataOutputStream
67 * @param dos the DataOutputStream to write on
68 * @param cp the constantpool entry used to register names
69 **/
70 protected void writeCPEntry(DataOutputStream dos, ConstantPool cp)
71 throws IOException {
72 int high = (int)(value >> 32);
73 int low = (int)value;
74 dos.writeInt(high);
75 dos.writeInt(low);
76 }
77
78 /**
79 * @return the bytes representing the long value
80 **/
81 public long getValue() {
82 return value;
83 }
84
85 /**
86 * Set the long value
87 * @param value the new value
88 **/
89 public void setValue(long value) {
90 this.value = value;
91 }
92
93 /**
94 * @return the number of pool enties used for this entry
95 **/
96 public int getUsedCPSpace() {
97 return 2;
98 }
99
100 /**
101 * print in a readable way
102 **/
103 public String toString() {
104 return getClass().getName()+":"+hashCode()+":"+value;
105 }
106 }