/**
* Copyright (c) 2002-2013 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.gis.spatial.rtree.filter;
import org.neo4j.gis.spatial.rtree.Envelope;
import org.neo4j.gis.spatial.rtree.EnvelopeDecoder;
import org.neo4j.graphdb.Node;
public abstract class AbstractSearchEnvelopeIntersection implements SearchFilter {
protected EnvelopeDecoder decoder;
protected Envelope referenceEnvelope;
public AbstractSearchEnvelopeIntersection(EnvelopeDecoder decoder, Envelope referenceEnvelope) {
this.decoder = decoder;
this.referenceEnvelope = referenceEnvelope;
}
@Override
public boolean needsToVisit(Envelope indexNodeEnvelope) {
return indexNodeEnvelope.intersects(referenceEnvelope);
}
@Override
public final boolean geometryMatches(Node geomNode) {
Envelope geomEnvelope = decoder.decodeEnvelope(geomNode);
if (geomEnvelope.intersects(referenceEnvelope)) {
return onEnvelopeIntersection(geomNode, geomEnvelope);
}
return false;
}
@Override
public String toString() {
return "SearchEnvelopeIntersection[" + referenceEnvelope + "]";
}
protected abstract boolean onEnvelopeIntersection(Node geomNode, Envelope geomEnvelope);
}