/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2005-2008, 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.visitor;
import org.opengis.feature.FeatureVisitor;
/**
* A visitor which performs a calculation on a FeatureCollection. A FeatureCalc
* will not modify the features visited.
*
* @author Cory Horner, Refractions
*
* @see FeatureVisitor
* @since 2.2.M2
*
* @source $URL$
*/
public interface FeatureCalc extends FeatureVisitor {
/**
* Returns the result of the calculation as a handy object which can be merged and modified.
*
* @return the results of the calculation
*/
CalcResult getResult();
}