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1   /*
2    * Copyright 2002-2006 The Apache Software Foundation.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package org.apache.commons.jexl.parser;
17  
18  import org.apache.commons.jexl.util.Coercion;
19  import org.apache.commons.jexl.JexlContext;
20  
21  /***
22   * || and 'or'.
23   * 
24   * @author <a href="mailto:geirm@apache.org">Geir Magnusson Jr.</a>
25   * @version $Id: ASTOrNode.java 398272 2006-04-30 03:14:01Z dion $
26   */
27  public class ASTOrNode extends SimpleNode {
28      /***
29       * Create the node given an id.
30       * 
31       * @param id node id.
32       */
33      public ASTOrNode(int id) {
34          super(id);
35      }
36  
37      /***
38       * Create a node with the given parser and id.
39       * 
40       * @param p a parser.
41       * @param id node id.
42       */
43      public ASTOrNode(Parser p, int id) {
44          super(p, id);
45      }
46  
47      /*** {@inheritDoc} */
48      public Object jjtAccept(ParserVisitor visitor, Object data) {
49          return visitor.visit(this, data);
50      }
51  
52      /*** {@inheritDoc} */
53      public Object value(JexlContext jc) throws Exception {
54          Object left = ((SimpleNode) jjtGetChild(0)).value(jc);
55          boolean leftValue = Coercion.coerceBoolean(left).booleanValue();
56  
57          /*
58           * coercion rules
59           */
60          return (leftValue || Coercion.coerceBoolean(((SimpleNode) jjtGetChild(1)).value(jc)).booleanValue()) 
61              ? Boolean.TRUE
62              : Boolean.FALSE;
63      }
64  }