01: /*
02: * Copyright (c) 2003-2008, Franz-Josef Elmer, All rights reserved.
03: *
04: * Redistribution and use in source and binary forms, with or without
05: * modification, are permitted provided that the following conditions are met:
06: *
07: * - Redistributions of source code must retain the above copyright notice,
08: * this list of conditions and the following disclaimer.
09: * - Redistributions in binary form must reproduce the above copyright notice,
10: * this list of conditions and the following disclaimer in the documentation
11: * and/or other materials provided with the distribution.
12: *
13: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
14: * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
15: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
17: * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18: * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19: * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
20: * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
21: * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
22: * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
23: * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24: */
25: package classycle.classfile;
26:
27: /**
28: * Constant holding a name and a type or method descriptor.
29: *
30: * @author Franz-Josef Elmer
31: */
32: public class NameAndTypeConstant extends Constant {
33: private final int _nameIndex;
34: private final int _descriptorIndex;
35:
36: /**
37: * Creates an instance for the specified name and type or method descriptor.
38: * @param pool Constant pool. Needed to resolve references.
39: * @param nameIndex Index of the name in the pool.
40: * @param descriptorIndex Index of the type or method descriptor in the pool.
41: */
42: public NameAndTypeConstant(Constant[] pool, int nameIndex,
43: int descriptorIndex) {
44: super (pool);
45: _nameIndex = nameIndex;
46: _descriptorIndex = descriptorIndex;
47: }
48:
49: /** Returns the name. */
50: public String getName() {
51: String result = null;
52: Constant c = getConstant(_nameIndex);
53: if (c instanceof UTF8Constant) {
54: result = ((UTF8Constant) c).getString();
55: }
56: return result;
57: }
58:
59: /** Returns the type or method descriptor. */
60: public String getDescriptor() {
61: String result = null;
62: Constant c = getConstant(_descriptorIndex);
63: if (c instanceof UTF8Constant) {
64: result = ((UTF8Constant) c).getString();
65: }
66: return result;
67: }
68:
69: /** Returns constant type, name, and descriptor. */
70: public String toString() {
71: return "CONSTANT_NameAndType: " + getName() + ", "
72: + getDescriptor();
73: }
74: } //class
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