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 package org.apache.commons.jxpath;
018
019 import java.io.Serializable;
020
021 /**
022 * A Container is an object implementing an indirection
023 * mechanism transparent to JXPath. For example, if property
024 * "foo" of the context node has a Container as its value,
025 * the XPath "foo" will produce the contents of that Container,
026 * rather than the container itself.
027 *
028 * @author Dmitri Plotnikov
029 * @version $Revision: 652925 $ $Date: 2008-05-02 17:05:41 -0500 (Fri, 02 May 2008) $
030 */
031 public interface Container extends Serializable {
032
033 /**
034 * Returns the contained value.
035 * @return Object value
036 */
037 Object getValue();
038
039 /**
040 * Modifies the value contained by this container. May throw
041 * UnsupportedOperationException.
042 * @param value Object value to set.
043 */
044 void setValue(Object value);
045 }