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.jelly.xpath;
17
18 import org.apache.commons.jelly.TagSupport;
19
20 /*** An abstract base class useful for implementation inheritence
21 *
22 * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
23 * @version $Revision: 155420 $
24 */
25 public abstract class XPathTagSupport extends TagSupport {
26
27 // Implementation methods
28 //-------------------------------------------------------------------------
29 protected Object getXPathContext() {
30 XPathSource tag = (XPathSource) findAncestorWithClass( XPathSource.class );
31 if ( tag != null ) {
32 return tag.getXPathSource();
33 }
34 return null;
35 }
36 }