/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2011, 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 org.apache.commons.jxpath.ri.model.NodeIterator;
import org.apache.commons.jxpath.ri.model.NodePointer;
import org.opengis.feature.type.ComplexType;
import org.opengis.feature.type.Name;
/**
* Iterates over a single attribute of a feature type.
*
* @author Niels Charlier (Curtin University of Technology)
*
*
*
* @source $URL: http://svn.osgeo.org/geotools/trunk/modules/unsupported/app-schema/app-schema/src/main/java/org/geotools/feature/xpath/SingleFeatureTypeAttributeIterator.java $
* http://svn.osgeo.org/geotools/trunk/modules/unsupported/app-schema/app-schema/src/main
* /java/org/geotools/feature/xpath/SingleFeatureTypeAttributeIterator.java $
*
*/
public class SingleFeatureTypeAttributeIterator implements NodeIterator {
/**
* The feature type node pointer
*/
protected NodePointer pointer;
protected Name name;
protected ComplexType featureType;
/**
* Creates the iteartor.
*
* @param pointer
* The pointer to the feature.
* @param index
* The index of the property to iterate over
*/
public SingleFeatureTypeAttributeIterator(NodePointer pointer, ComplexType featureType,
Name name) {
this.pointer = pointer;
this.name = name;
this.featureType = featureType;
}
/**
* Always return 1, only a single property.
*/
public int getPosition() {
return 1;
}
/**
* Return true if position == 1.
*/
public boolean setPosition(int position) {
return position < 2;
}
/**
* Return a pointer to the property at the set index.
*/
public NodePointer getNodePointer() {
return new FeatureTypeAttributePointer(pointer, featureType, name);
}
}