/* * GeoTools - The Open Source Java GIS Toolkit * http://geotools.org * * (C) 2004-2008, Open Source Geospatial Foundation (OSGeo) * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. */ package org.geotools.feature.xpath; import java.util.Collection; import org.apache.commons.jxpath.ri.Compiler; import org.apache.commons.jxpath.ri.QName; import org.apache.commons.jxpath.ri.compiler.NodeNameTest; import org.apache.commons.jxpath.ri.compiler.NodeTest; import org.apache.commons.jxpath.ri.compiler.NodeTypeTest; import org.apache.commons.jxpath.ri.model.NodeIterator; import org.apache.commons.jxpath.ri.model.NodePointer; import org.opengis.feature.Attribute; import org.opengis.feature.ComplexAttribute; /** * Special node pointer for {@link org.geotools.feature.Feature}. * * @author Justin Deoliveira, The Open Planning Project * @author Gabriel Roldan, Axios Engineering * * * @source $URL$ */ public class AttributeNodePointer extends NodePointer { /** * */ private static final long serialVersionUID = -5637103253645991273L; /** * The name of hte node. */ QName name; /** * The underlying feature */ Attribute feature; protected AttributeNodePointer(NodePointer parent, Attribute feature, QName name) { super(parent); this.name = name; this.feature = feature; } public boolean isLeaf() { return !(feature instanceof ComplexAttribute); } public boolean isCollection() { return !isLeaf(); } public int getLength() { return isLeaf() ? 0 : ((Collection) feature.getValue()).size(); } public QName getName() { return name; } public Object getBaseValue() { return null; } public Object getImmediateNode() { return feature; } public void setValue(Object value) { feature = (Attribute) value; } public int compareChildNodePointers(NodePointer pointer1, NodePointer pointer2) { return 0; } public NodeIterator childIterator(NodeTest test, boolean reverse, NodePointer startWith) { if (test instanceof NodeNameTest) { NodeNameTest nodeNameTest = (NodeNameTest) test; if (!nodeNameTest.isWildcard()) { return new AttributeNodeIterator(this, nodeNameTest); } else { return new AttributeNodeIterator(this); } } if (test instanceof NodeTypeTest) { NodeTypeTest nodeTypeTest = (NodeTypeTest) test; if (nodeTypeTest.getNodeType() == Compiler.NODE_TYPE_NODE) { return new AttributeNodeIterator(this); } } return super.childIterator(test, reverse, startWith); } public NodeIterator attributeIterator(QName qname) { /*TODO if (qname.getName().equals("id") || qname.getName().equals("fid")) { return new SingleFeaturePropertyIterator(this, -1); } */ return super.attributeIterator(qname); } }