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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *     http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  
18  package org.apache.commons.jxpath;
19  
20  import java.io.Serializable;
21  
22  /**
23   * 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
24   * its value, the XPath "foo" will produce the contents of that Container, rather than the container itself.
25   */
26  public interface Container extends Serializable {
27  
28      /**
29       * Returns the contained value.
30       *
31       * @return Object value
32       */
33      Object getValue();
34  
35      /**
36       * Modifies the value contained by this container. May throw UnsupportedOperationException.
37       *
38       * @param value Object value to set.
39       */
40      void setValue(Object value);
41  }