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Java > Open Source Codes > org > apache > taglibs > standard > tei > XmlTransformTEI


1 /*
2  * Copyright 1999-2004 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
17 package org.apache.taglibs.standard.tei;
18
19 import javax.servlet.jsp.tagext.TagData JavaDoc;
20 import javax.servlet.jsp.tagext.TagExtraInfo JavaDoc;
21
22 /**
23  * <p>An implementation of TagExtraInfo that implements validation for
24  * &lt;x:transform&gt;'s attributes</p>
25  *
26  * @author Shawn Bayern
27  */

28 public class XmlTransformTEI extends TagExtraInfo JavaDoc {
29
30     final private static String JavaDoc XSLT = "xslt";
31     final private static String JavaDoc RESULT = "result";
32     final private static String JavaDoc VAR = "var";
33
34     public boolean isValid(TagData JavaDoc us) {
35     // require XSLT
36
if (!Util.isSpecified(us, XSLT))
37         return false;
38
39     // disallow both VAR and RESULT
40
if (Util.isSpecified(us, VAR) && Util.isSpecified(us, RESULT))
41         return false;
42         return true;
43     }
44
45 }
46
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