    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 */
    017package org.apache.bcel.classfile;
    018
    019import java.io.DataOutputStream;
    020import java.io.IOException;
    021
    022/**
    023 * @since 6.0
    024 */
    025public class EnumElementValue extends ElementValue {
    026    // For enum types, these two indices point to the type and value
    027    private final int typeIdx;
    028
    029    private final int valueIdx;
    030
    031    public EnumElementValue(final int type, final int typeIdx, final int valueIdx, final ConstantPool cpool) {
    032        super(type, cpool);
    033        if (type != ENUM_CONSTANT) {
    034            throw new IllegalArgumentException("Only element values of type enum can be built with this ctor - type specified: " + type);
    035        }
    036        this.typeIdx = typeIdx;
    037        this.valueIdx = valueIdx;
    038    }
    039
    040    @Override
    041    public void dump(final DataOutputStream dos) throws IOException {
    042        dos.writeByte(super.getType()); // u1 type of value (ENUM_CONSTANT == 'e')
    043        dos.writeShort(typeIdx); // u2
    044        dos.writeShort(valueIdx); // u2
    045    }
    046
    047    public String getEnumTypeString() {
    048        return super.getConstantPool().getConstantUtf8(typeIdx).getBytes();
    049    }
    050
    051    public String getEnumValueString() {
    052        return super.getConstantPool().getConstantUtf8(valueIdx).getBytes();
    053    }
    054
    055    public int getTypeIndex() {
    056        return typeIdx;
    057    }
    058
    059    public int getValueIndex() {
    060        return valueIdx;
    061    }
    062
    063    @Override
    064    public String stringifyValue() {
    065        return super.getConstantPool().getConstantUtf8(valueIdx).getBytes();
    066    }
    067}