| /* |
| * reserved comment block |
| * DO NOT REMOVE OR ALTER! |
| */ |
| /* |
| * 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: FuncCount.java,v 1.2.4.1 2005/09/14 19:53:45 jeffsuttor Exp $ |
| */ |
| package com.sun.org.apache.xpath.internal.functions; |
| |
| import com.sun.org.apache.xml.internal.dtm.DTMIterator; |
| import com.sun.org.apache.xpath.internal.XPathContext; |
| import com.sun.org.apache.xpath.internal.objects.XNumber; |
| import com.sun.org.apache.xpath.internal.objects.XObject; |
| |
| /** |
| * Execute the Count() function. |
| * @xsl.usage advanced |
| */ |
| public class FuncCount extends FunctionOneArg |
| { |
| static final long serialVersionUID = -7116225100474153751L; |
| |
| /** |
| * 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 |
| { |
| |
| // DTMIterator nl = m_arg0.asIterator(xctxt, xctxt.getCurrentNode()); |
| |
| // // We should probably make a function on the iterator for this, |
| // // as a given implementation could optimize. |
| // int i = 0; |
| // |
| // while (DTM.NULL != nl.nextNode()) |
| // { |
| // i++; |
| // } |
| // nl.detach(); |
| DTMIterator nl = m_arg0.asIterator(xctxt, xctxt.getCurrentNode()); |
| int i = nl.getLength(); |
| nl.detach(); |
| |
| return new XNumber((double) i); |
| } |
| } |