    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}