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Java > Open Source Codes > com > go > trove > classfile > ConstantUTFInfo


1 /* ====================================================================
2  * Trove - Copyright (c) 1997-2000 Walt Disney Internet Group
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4  * The Tea Software License, Version 1.1
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23  * Walt Disney Internet Group (http://opensource.go.com/)."
24  * Alternately, this acknowledgment may appear in the software itself,
25  * if and wherever such third-party acknowledgments normally appear.
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27  * 4. The names "Tea", "TeaServlet", "Kettle", "Trove" and "BeanDoc" must
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51  */
52
53 package com.go.trove.classfile;
54
55 import java.io.*;
56
57 /******************************************************************************
58  * This class corresponds to the CONSTANT_Utf8_info structure as defined in
59  * section 4.4.7 of <i>The Java Virtual Machine Specification</i>.
60  *
61  * @author Brian S O'Neill
62  * @version
63  * <!--$$Revision:--> 22 <!-- $-->, <!--$$JustDate:--> 9/07/00 <!-- $-->
64  */
65 public class ConstantUTFInfo extends ConstantInfo {
66     private String JavaDoc mStr;
67     
68     /**
69      * Will return either a new ConstantUTFInfo object or one already in
70      * the constant pool. If it is a new ConstantUTFInfo, it will be inserted
71      * into the pool.
72      */
73     static ConstantUTFInfo make(ConstantPool cp, String JavaDoc str) {
74         ConstantInfo ci = new ConstantUTFInfo(str);
75         return (ConstantUTFInfo)cp.addConstant(ci);
76     }
77     
78     ConstantUTFInfo(String JavaDoc str) {
79         super(TAG_UTF8);
80         mStr = str;
81     }
82     
83     public String JavaDoc getValue() {
84         return mStr;
85     }
86
87     public int hashCode() {
88         return mStr.hashCode();
89     }
90     
91     public boolean equals(Object JavaDoc obj) {
92         if (obj instanceof ConstantUTFInfo) {
93             ConstantUTFInfo other = (ConstantUTFInfo)obj;
94             return mStr.equals(other.mStr);
95         }
96         
97         return false;
98     }
99     
100     public void writeTo(DataOutput dout) throws IOException {
101         super.writeTo(dout);
102         dout.writeUTF(mStr);
103     }
104
105     public String JavaDoc toString() {
106         return "CONSTANT_Utf8_info: " + getValue();
107     }
108 }
109
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