    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.DataInput;
    021import java.io.IOException;
    022
    023import org.apache.bcel.Const;
    024
    025/**
    026 * This class represents a constant pool reference to a field.
    027 *
    028 */
    029public final class ConstantFieldref extends ConstantCP {
    030
    031    /**
    032     * Initialize from another object.
    033     */
    034    public ConstantFieldref(final ConstantFieldref c) {
    035        super(Const.CONSTANT_Fieldref, c.getClassIndex(), c.getNameAndTypeIndex());
    036    }
    037
    038
    039    /**
    040     * Initialize instance from input data.
    041     *
    042     * @param input input stream
    043     * @throws IOException
    044     */
    045    ConstantFieldref(final DataInput input) throws IOException {
    046        super(Const.CONSTANT_Fieldref, input);
    047    }
    048
    049
    050    /**
    051     * @param class_index Reference to the class containing the Field
    052     * @param name_and_type_index and the Field signature
    053     */
    054    public ConstantFieldref(final int class_index, final int name_and_type_index) {
    055        super(Const.CONSTANT_Fieldref, class_index, name_and_type_index);
    056    }
    057
    058
    059    /**
    060     * Called by objects that are traversing the nodes of the tree implicitely
    061     * defined by the contents of a Java class. I.e., the hierarchy of Fields,
    062     * fields, attributes, etc. spawns a tree of objects.
    063     *
    064     * @param v Visitor object
    065     */
    066    @Override
    067    public void accept( final Visitor v ) {
    068        v.visitConstantFieldref(this);
    069    }
    070}