    001/*
    002 * Licensed to the Apache Software Foundation (ASF) under one
    003 * or more contributor license agreements.  See the NOTICE file
    004 * distributed with this work for additional information
    005 * regarding copyright ownership.  The ASF licenses this file
    006 * to you under the Apache License, Version 2.0 (the
    007 * "License"); you may not use this file except in compliance
    008 * with the License.  You may obtain a copy of the License at
    009 *
    010 *   https://www.apache.org/licenses/LICENSE-2.0
    011 *
    012 * Unless required by applicable law or agreed to in writing,
    013 * software distributed under the License is distributed on an
    014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    015 * KIND, either express or implied.  See the License for the
    016 * specific language governing permissions and limitations
    017 * under the License.
    018 */
    019package org.apache.bcel.classfile;
    020
    021import java.io.DataOutputStream;
    022import java.io.IOException;
    023
    024/**
    025 * An annotation's element value pair.
    026 *
    027 * @since 6.0
    028 */
    029public class ElementValuePair {
    030
    031    static final ElementValuePair[] EMPTY_ARRAY = {};
    032
    033    private final ElementValue elementValue;
    034
    035    private final ConstantPool constantPool;
    036
    037    private final int elementNameIndex;
    038
    039    public ElementValuePair(final int elementNameIndex, final ElementValue elementValue, final ConstantPool constantPool) {
    040        this.elementValue = elementValue;
    041        this.elementNameIndex = elementNameIndex;
    042        this.constantPool = constantPool;
    043    }
    044
    045    protected void dump(final DataOutputStream dos) throws IOException {
    046        dos.writeShort(elementNameIndex); // u2 name of the element
    047        elementValue.dump(dos);
    048    }
    049
    050    public int getNameIndex() {
    051        return elementNameIndex;
    052    }
    053
    054    public String getNameString() {
    055        return constantPool.getConstantUtf8(elementNameIndex).getBytes();
    056    }
    057
    058    public final ElementValue getValue() {
    059        return elementValue;
    060    }
    061
    062    public String toShortString() {
    063        final StringBuilder result = new StringBuilder();
    064        result.append(getNameString()).append("=").append(getValue().toShortString());
    065        return result.toString();
    066    }
    067}