1 package org.apache.commons.ognl;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 /**
23 * $Id: ASTKeyValue.java 1194869 2011-10-29 11:10:16Z mcucchiara $
24 * @author Luke Blanshard (blanshlu@netscape.net)
25 * @author Drew Davidson (drew@ognl.org)
26 */
27 class ASTKeyValue
28 extends SimpleNode
29 {
30 public ASTKeyValue( int id )
31 {
32 super( id );
33 }
34
35 public ASTKeyValue( OgnlParser p, int id )
36 {
37 super( p, id );
38 }
39
40 protected Node getKey()
41 {
42 return children[0];
43 }
44
45 protected Node getValue()
46 {
47 return ( jjtGetNumChildren() > 1 ) ? children[1] : null;
48 }
49
50 /**
51 * Returns null because this is a parser construct and does not evaluate
52 */
53 protected Object getValueBody( OgnlContext context, Object source )
54 throws OgnlException
55 {
56 return null;
57 }
58
59 public <R, P> R accept( NodeVisitor<? extends R, ? super P> visitor, P data )
60 throws OgnlException
61 {
62 return visitor.visit( this, data );
63 }
64 }