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Java > Open Source Codes > com > sun > org > apache > xpath > internal > functions > FuncUnparsedEntityURI


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  * $Id: FuncUnparsedEntityURI.java,v 1.8 2004/02/17 04:34:00 minchau Exp $
18  */
19 package com.sun.org.apache.xpath.internal.functions;
20
21 import com.sun.org.apache.xml.internal.dtm.DTM;
22 import com.sun.org.apache.xpath.internal.XPathContext;
23 import com.sun.org.apache.xpath.internal.objects.XObject;
24 import com.sun.org.apache.xpath.internal.objects.XString;
25
26 /**
27  * @xsl.usage advanced
28  */
29 public class FuncUnparsedEntityURI extends FunctionOneArg
30 {
31
32   /**
33    * Execute the function. The function must return
34    * a valid object.
35    * @param xctxt The current execution context.
36    * @return A valid XObject.
37    *
38    * @throws javax.xml.transform.TransformerException
39    */
40   public XObject execute(XPathContext xctxt) throws javax.xml.transform.TransformerException JavaDoc
41   {
42
43     String JavaDoc name = m_arg0.execute(xctxt).str();
44     int context = xctxt.getCurrentNode();
45     DTM dtm = xctxt.getDTM(context);
46     int doc = dtm.getDocument();
47     
48     String JavaDoc uri = dtm.getUnparsedEntityURI(name);
49
50     return new XString(uri);
51   }
52 }
53
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