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1   /*
2    * Copyright 2002,2004 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.JexlContext;
19  import org.apache.commons.jexl.util.Coercion;
20  
21  /***
22   *  && and 'and'
23   *
24   *  @author <a href="mailto:geirm@apache.org">Geir Magnusson Jr.</a>
25   *  @version $Id: ASTAndNode.java,v 1.4 2004/08/17 13:20:47 dion Exp $
26   */
27  public class ASTAndNode extends SimpleNode
28  {
29      public ASTAndNode(int id)
30      {
31          super(id);
32      }
33  
34      public ASTAndNode(Parser p, int id)
35      {
36          super(p, id);
37      }
38  
39  
40      /*** Accept the visitor. **/
41      public Object jjtAccept(ParserVisitor visitor, Object data)
42      {
43          return visitor.visit(this, data);
44      }
45  
46      public Object value(JexlContext jc)
47          throws Exception
48      {
49          Object left = ((SimpleNode) jjtGetChild(0)).value(jc);
50          boolean leftValue = Coercion.coerceBoolean(left).booleanValue(); 
51  
52          /*
53           * coercion rules
54           */
55          return (leftValue
56          		&& 
57  				Coercion.coerceBoolean(
58  						((SimpleNode) jjtGetChild(1)).value(jc)).booleanValue()) ?
59              Boolean.TRUE : Boolean.FALSE;
60      }
61  }