/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2002-2008, 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.xml.impl.jxpath;
import org.apache.commons.jxpath.ri.model.NodeIterator;
import org.apache.commons.jxpath.ri.model.NodePointer;
import org.opengis.feature.simple.SimpleFeatureType;
/**
* Iterates over a single attribute of a feature type.
*
* @author Justin Deoliveira, The Open Planning Project
*
*
* @source $URL$
*/
public class SingleFeatureTypeAttributeIterator implements NodeIterator {
/**
* The feature type node pointer
*/
FeatureTypePointer pointer;
/**
* The feature type
*/
SimpleFeatureType featureType;
/**
* indedx of property
*/
int index;
/**
* Creates the iteartor.
*
* @param pointer The pointer to the feature.
* @param index The index of the property to iterate over
*/
public SingleFeatureTypeAttributeIterator(FeatureTypePointer pointer, int index) {
this.pointer = pointer;
this.index = index;
featureType = (SimpleFeatureType) pointer.getImmediateNode();
}
/**
* 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, index);
}
}