| /******************************************************************************* |
| * 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 |
| *******************************************************************************/ |
| |
| package org.eclipse.wst.xml.xpath2.processor.internal; |
| |
| import org.eclipse.wst.xml.xpath2.api.ResultBuffer; |
| import org.eclipse.wst.xml.xpath2.processor.internal.types.NodeType; |
| import org.w3c.dom.Node; |
| |
| /** |
| * the preceding axis contains all nodes that are descendants of the root of the |
| * tree in which the context node is found including the context node itself |
| */ |
| public class PrecedingSiblingAxis extends ReverseAxis { |
| // XXX again, unify with following |
| |
| /** |
| * returns preceding nodes of the context node |
| * |
| * @param node |
| * is the node type. |
| * @throws dc |
| * is the Dynamic context. |
| */ |
| public void iterate(NodeType node, ResultBuffer copyInto, Node limitNode) { |
| // XXX check for attribute / namespace node... if so return |
| // empty sequence |
| |
| int pos = copyInto.size(); |
| Node iterNode = node.node_value(); |
| // get the children of the parent [siblings] |
| do { |
| iterNode = iterNode.getPreviousSibling(); |
| if (iterNode != null) { |
| copyInto.addAt(pos, NodeType.dom_to_xpath(iterNode, node.getTypeModel())); |
| } |
| } while (iterNode != null); |
| } |
| |
| public String name() { |
| return "preceding-sibling"; |
| } |
| |
| } |