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 16 package javassist.bytecode.annotation; 17 18 import javassist.ClassPool; 19 import javassist.bytecode.ConstPool; 20 import java.io.IOException; 21 import java.lang.reflect.Method; 22 23 /** 24 * Integer constant value. 25 * 26 * @author <a href="mailto:bill@jboss.org">Bill Burke</a> 27 * @author Shigeru Chiba 28 */ 29 public class IntegerMemberValue extends MemberValue { 30 int valueIndex; 31 32 /** 33 * Constructs an int constant value. The initial value is specified 34 * by the constant pool entry at the given index. 35 * 36 * @param index the index of a CONSTANT_Integer_info structure. 37 */ IntegerMemberValue(int index, ConstPool cp)38 public IntegerMemberValue(int index, ConstPool cp) { 39 super('I', cp); 40 this.valueIndex = index; 41 } 42 43 /** 44 * Constructs an int constant value. 45 * Note that this constructor receives <b>the initial value 46 * as the second parameter</b> 47 * unlike the corresponding constructors in the sibling classes. 48 * This is for making a difference from the constructor that receives 49 * an index into the constant pool table as the first parameter. 50 * Note that the index is also int type. 51 * 52 * @param value the initial value. 53 */ IntegerMemberValue(ConstPool cp, int value)54 public IntegerMemberValue(ConstPool cp, int value) { 55 super('I', cp); 56 setValue(value); 57 } 58 59 /** 60 * Constructs an int constant value. The initial value is 0. 61 */ IntegerMemberValue(ConstPool cp)62 public IntegerMemberValue(ConstPool cp) { 63 super('I', cp); 64 setValue(0); 65 } 66 getValue(ClassLoader cl, ClassPool cp, Method m)67 Object getValue(ClassLoader cl, ClassPool cp, Method m) { 68 return new Integer(getValue()); 69 } 70 getType(ClassLoader cl)71 Class getType(ClassLoader cl) { 72 return int.class; 73 } 74 75 /** 76 * Obtains the value of the member. 77 */ getValue()78 public int getValue() { 79 return cp.getIntegerInfo(valueIndex); 80 } 81 82 /** 83 * Sets the value of the member. 84 */ setValue(int newValue)85 public void setValue(int newValue) { 86 valueIndex = cp.addIntegerInfo(newValue); 87 } 88 89 /** 90 * Obtains the string representation of this object. 91 */ toString()92 public String toString() { 93 return Integer.toString(getValue()); 94 } 95 96 /** 97 * Writes the value. 98 */ write(AnnotationsWriter writer)99 public void write(AnnotationsWriter writer) throws IOException { 100 writer.constValueIndex(getValue()); 101 } 102 103 /** 104 * Accepts a visitor. 105 */ accept(MemberValueVisitor visitor)106 public void accept(MemberValueVisitor visitor) { 107 visitor.visitIntegerMemberValue(this); 108 } 109 } 110