- /*
- * Copyright 1999-2004 The Apache Software Foundation.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
- /*
- * $Id: FuncGenerateId.java,v 1.10 2004/02/17 04:34:01 minchau Exp $
- */
- package com.sun.org.apache.xpath.internal.functions;
-
- import com.sun.org.apache.xml.internal.dtm.DTM;
- import com.sun.org.apache.xpath.internal.XPathContext;
- import com.sun.org.apache.xpath.internal.objects.XObject;
- import com.sun.org.apache.xpath.internal.objects.XString;
-
- /**
- * Execute the GenerateId() function.
- * @xsl.usage advanced
- */
- public class FuncGenerateId extends FunctionDef1Arg
- {
-
- /**
- * Execute the function. The function must return
- * a valid object.
- * @param xctxt The current execution context.
- * @return A valid XObject.
- *
- * @throws javax.xml.transform.TransformerException
- */
- public XObject execute(XPathContext xctxt) throws javax.xml.transform.TransformerException
- {
-
- int which = getArg0AsNode(xctxt);
-
- if (DTM.NULL != which)
- {
- // Note that this is a different value than in previous releases
- // of Xalan. It's sensitive to the exact encoding of the node
- // handle anyway, so fighting to maintain backward compatability
- // really didn't make sense; it may change again as we continue
- // to experiment with balancing document and node numbers within
- // that value.
- return new XString("N" + Integer.toHexString(which).toUpperCase());
- }
- else
- return XString.EMPTYSTRING;
- }
- }