1 /* 2 * Javassist, a Java-bytecode translator toolkit. 3 * Copyright (C) 2004 Bill Burke. All Rights Reserved. 4 * 5 * The contents of this file are subject to the Mozilla Public License Version 6 * 1.1 (the "License"); you may not use this file except in compliance with 7 * the License. Alternatively, the contents of this file may be used under 8 * the terms of the GNU Lesser General Public License Version 2.1 or later. 9 * 10 * Software distributed under the License is distributed on an "AS IS" basis, 11 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License 12 * for the specific language governing rights and limitations under the 13 * License. 14 */ 15 package javassist.bytecode.annotation; 16 17 import javassist.ClassPool; 18 import javassist.bytecode.ConstPool; 19 import java.io.IOException; 20 import java.lang.reflect.Method; 21 22 /** 23 * Byte constant value. 24 * 25 * @author <a href="mailto:bill@jboss.org">Bill Burke</a> 26 * @author Shigeru Chiba 27 */ 28 public class ByteMemberValue extends MemberValue { 29 int valueIndex; 30 31 /** 32 * Constructs a byte constant value. The initial value is specified 33 * by the constant pool entry at the given index. 34 * 35 * @param index the index of a CONSTANT_Integer_info structure. 36 */ ByteMemberValue(int index, ConstPool cp)37 public ByteMemberValue(int index, ConstPool cp) { 38 super('B', cp); 39 this.valueIndex = index; 40 } 41 42 /** 43 * Constructs a byte constant value. 44 * 45 * @param b the initial value. 46 */ ByteMemberValue(byte b, ConstPool cp)47 public ByteMemberValue(byte b, ConstPool cp) { 48 super('B', cp); 49 setValue(b); 50 } 51 52 /** 53 * Constructs a byte constant value. The initial value is 0. 54 */ ByteMemberValue(ConstPool cp)55 public ByteMemberValue(ConstPool cp) { 56 super('B', cp); 57 setValue((byte)0); 58 } 59 getValue(ClassLoader cl, ClassPool cp, Method m)60 Object getValue(ClassLoader cl, ClassPool cp, Method m) { 61 return new Byte(getValue()); 62 } 63 getType(ClassLoader cl)64 Class getType(ClassLoader cl) { 65 return byte.class; 66 } 67 68 /** 69 * Obtains the value of the member. 70 */ getValue()71 public byte getValue() { 72 return (byte)cp.getIntegerInfo(valueIndex); 73 } 74 75 /** 76 * Sets the value of the member. 77 */ setValue(byte newValue)78 public void setValue(byte newValue) { 79 valueIndex = cp.addIntegerInfo(newValue); 80 } 81 82 /** 83 * Obtains the string representation of this object. 84 */ toString()85 public String toString() { 86 return Byte.toString(getValue()); 87 } 88 89 /** 90 * Writes the value. 91 */ write(AnnotationsWriter writer)92 public void write(AnnotationsWriter writer) throws IOException { 93 writer.constValueIndex(getValue()); 94 } 95 96 /** 97 * Accepts a visitor. 98 */ accept(MemberValueVisitor visitor)99 public void accept(MemberValueVisitor visitor) { 100 visitor.visitByteMemberValue(this); 101 } 102 } 103