001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 * 017 */ 018package org.apache.bcel.classfile; 019 020import java.io.DataOutputStream; 021import java.io.IOException; 022 023import org.apache.bcel.Const; 024 025/** 026 * an annotation's element value pair 027 * 028 * @since 6.0 029 */ 030public class ElementValuePair 031{ 032 private final ElementValue elementValue; 033 034 private final ConstantPool constantPool; 035 036 private final int elementNameIndex; 037 038 public ElementValuePair(final int elementNameIndex, final ElementValue elementValue, 039 final ConstantPool constantPool) 040 { 041 this.elementValue = elementValue; 042 this.elementNameIndex = elementNameIndex; 043 this.constantPool = constantPool; 044 } 045 046 public String getNameString() 047 { 048 final ConstantUtf8 c = (ConstantUtf8) constantPool.getConstant( 049 elementNameIndex, Const.CONSTANT_Utf8); 050 return c.getBytes(); 051 } 052 053 public final ElementValue getValue() 054 { 055 return elementValue; 056 } 057 058 public int getNameIndex() 059 { 060 return elementNameIndex; 061 } 062 063 public String toShortString() 064 { 065 final StringBuilder result = new StringBuilder(); 066 result.append(getNameString()).append("=").append( 067 getValue().toShortString()); 068 return result.toString(); 069 } 070 071 protected void dump(final DataOutputStream dos) throws IOException { 072 dos.writeShort(elementNameIndex); // u2 name of the element 073 elementValue.dump(dos); 074 } 075}