/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2006-2008, 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.filter.spatial;
import org.opengis.filter.FilterVisitor;
import org.opengis.filter.expression.Expression;
import org.opengis.filter.spatial.Disjoint;
import com.vividsolutions.jts.geom.Envelope;
import com.vividsolutions.jts.geom.Geometry;
/**
*
*
* @source $URL$
*/
public class DisjointImpl extends AbstractPreparedGeometryFilter implements Disjoint {
public DisjointImpl(Expression e1, Expression e2) {
super(e1, e2);
}
public DisjointImpl(Expression e1, Expression e2, MatchAction matchAction) {
super(e1, e2, matchAction);
}
@Override
public boolean evaluateInternal(Geometry left, Geometry right) {
switch (literals) {
case BOTH:
return cacheValue;
case RIGHT: {
return rightPreppedGeom.disjoint(left);
}
case LEFT: {
return leftPreppedGeom.disjoint(right);
}
default: {
return basicEvaluate(left, right);
}
}
}
@Override
protected boolean basicEvaluate(Geometry left, Geometry right) {
Envelope envLeft = left.getEnvelopeInternal();
Envelope envRight = right.getEnvelopeInternal();
if(envRight.intersects(envLeft))
return left.disjoint(right);
return true;
}
public Object accept(FilterVisitor visitor, Object extraData) {
return visitor.visit(this,extraData);
}
}