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.commons.jxpath;
019
020import java.io.Serializable;
021
022/**
023 * A Container is an object implementing an indirection mechanism transparent to JXPath. For example, if property "foo" of the context node has a Container as
024 * its value, the XPath "foo" will produce the contents of that Container, rather than the container itself.
025 */
026public interface Container extends Serializable {
027
028    /**
029     * Returns the contained value.
030     *
031     * @return Object value
032     */
033    Object getValue();
034
035    /**
036     * Modifies the value contained by this container. May throw UnsupportedOperationException.
037     *
038     * @param value Object value to set.
039     */
040    void setValue(Object value);
041}