ConstUnicode


1   /*
2    * The contents of this file are subject to the terms 
3    * of the Common Development and Distribution License 
4    * (the License).  You may not use this file except in
5    * compliance with the License.
6    * 
7    * You can obtain a copy of the license at 
8    * https://glassfish.dev.java.net/public/CDDLv1.0.html or
9    * glassfish/bootstrap/legal/CDDLv1.0.txt.
10   * See the License for the specific language governing 
11   * permissions and limitations under the License.
12   * 
13   * When distributing Covered Code, include this CDDL 
14   * Header Notice in each file and include the License file 
15   * at glassfish/bootstrap/legal/CDDLv1.0.txt.  
16   * If applicable, add the following below the CDDL Header, 
17   * with the fields enclosed by brackets [] replaced by
18   * you own identifying information: 
19   * "Portions Copyrighted [year] [name of copyright owner]"
20   * 
21   * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
22   */
23  
24  
25  package com.sun.jdo.api.persistence.enhancer.classfile;
26  
27  import java.io.*;
28  
29  /**
30   * Class representing a unicode string value in the constant pool
31   */
32  
33  /* 
34   * Note: evidence suggests that this is no longer part of the java VM
35   * spec.
36   */
37  
38  public class ConstUnicode extends ConstBasic {
39    /* The tag associated with ConstClass entries */
40    public static final int MyTag = CONSTANTUnicode;
41   
42    /* The unicode string of interest */
43    private String   stringValue;
44  
45    /* public accessors */
46  
47    /**
48     * The tag of this constant entry
49     */
50    public int tag () { return MyTag; }
51  
52    /**
53     * return the value associated with the entry
54     */
55    public String   asString() {
56      return stringValue;
57    }
58  
59    /**
60     * A printable representation
61     */
62    public String   toString () {
63        return "CONSTANTUnicode(" + indexAsString() + "): " + stringValue;//NOI18N
64    }
65  
66    /* package local methods */
67  
68    ConstUnicode (String   s) {
69      stringValue = s;
70    }
71  
72    void formatData (DataOutputStream b) throws IOException {
73      b.writeBytes(stringValue);
74    }
75  
76    static ConstUnicode read (DataInputStream input) throws IOException {
77      int count = input.readShort(); // Is this chars or bytes?
78      StringBuffer   b = new StringBuffer  ();
79      for (int i=0; i < count; i++) { 
80        b.append(input.readChar());
81      }
82      return new ConstUnicode (b.toString());
83    }
84  
85    void resolve (ConstantPool p) {
86    }
87  }
88  
89  
90
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