| /******************************************************************************* |
| * 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.processor.DynamicContext; |
| import org.eclipse.wst.xml.xpath2.processor.ResultSequence; |
| import org.eclipse.wst.xml.xpath2.processor.internal.types.*; |
| |
| import java.util.*; |
| |
| /** |
| * The descendant axis contains the descendants of the context node |
| */ |
| public class DescendantAxis extends ChildAxis { |
| |
| /** |
| * Using the context node retrieve the descendants of this node |
| * |
| * @param node |
| * is the type of node. |
| * @param dc |
| * is the dynamic context. |
| * @return The descendants of the context node. |
| */ |
| @Override |
| public ResultSequence iterate(NodeType node, DynamicContext dc) { |
| // get the children |
| ResultSequence rs = super.iterate(node, dc); |
| |
| ArrayList descendants = new ArrayList(); |
| |
| // get descendants of all children |
| for (Iterator i = rs.iterator(); i.hasNext();) { |
| NodeType n = (NodeType) i.next(); |
| |
| descendants.add(iterate(n, dc)); |
| } |
| |
| // add descendants to result |
| for (Iterator i = descendants.iterator(); i.hasNext();) { |
| ResultSequence desc = (ResultSequence) i.next(); |
| |
| rs.concat(desc); |
| } |
| |
| return rs; |
| } |
| |
| } |