| /******************************************************************************* |
| * Copyright (c) 2005, 2009 Andrea Bittau, University College London, and others |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Andrea Bittau - initial API and implementation from the PsychoPath XPath 2.0 |
| * David Carver (STAR) - bug 262765 - Was not handling xml loaded dynamically in variables. |
| * Jesper Moller - bug 275610 - Avoid big time and memory overhead for externals |
| *******************************************************************************/ |
| |
| package org.eclipse.wst.xml.xpath2.processor.internal; |
| |
| import org.eclipse.wst.xml.xpath2.processor.DynamicContext; |
| import org.eclipse.wst.xml.xpath2.processor.ResultSequence; |
| import org.eclipse.wst.xml.xpath2.processor.ResultSequenceFactory; |
| import org.eclipse.wst.xml.xpath2.processor.internal.types.DocType; |
| import org.eclipse.wst.xml.xpath2.processor.internal.types.ElementType; |
| import org.eclipse.wst.xml.xpath2.processor.internal.types.NodeType; |
| import org.w3c.dom.Node; |
| import org.w3c.dom.NodeList; |
| |
| /** |
| * The child axis contains the children of the context node. |
| */ |
| public class ChildAxis extends ForwardAxis { |
| |
| /** |
| * Retrieves the context node's children. |
| * |
| * @param node |
| * is the type of node. |
| * @param dc |
| * is the dynamic context. |
| * @return The context node's children. |
| */ |
| public ResultSequence iterate(NodeType node, DynamicContext dc) { |
| ResultSequence rs = ResultSequenceFactory.create_new(); |
| NodeList nl = null; |
| |
| |
| // only document and element nodes have children |
| if (node instanceof DocType) { |
| nl = ((DocType) node).value().getChildNodes(); |
| } |
| if (node instanceof ElementType) |
| nl = ((ElementType) node).value().getChildNodes(); |
| |
| // add the children to the result |
| if (nl != null) { |
| for (int i = 0; i < nl.getLength(); i++) { |
| Node dnode = nl.item(i); |
| NodeType n = null; |
| try { |
| n = NodeType.dom_to_xpath(dnode); |
| } catch (NullPointerException ex) { |
| n = NodeType.dom_to_xpath(dnode); |
| } |
| |
| rs.add(n); |
| } |
| } |
| |
| return rs; |
| } |
| |
| } |