/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 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.data.wfs.protocol.wfs;
import java.io.IOException;
import org.opengis.feature.simple.SimpleFeature;
/**
* Interface to abstract out the parsing of features coming from a GetFeature request from the
* underlying xml parsing technology in use.
*
* @author Gabriel Roldan (TOPP)
* @version $Id$
* @since 2.5.x
*
*
* @source $URL$
* http://gtsvn.refractions.net/trunk/modules/plugin/wfs/src/main/java/org/geotools/data
* /wfs/protocol/wfs/GetFeatureParser.java $
*/
public interface GetFeatureParser {
/**
* Returns the number of features if advertised by the server and the parser was able to get
* that information for example from the {@code wfs:FeatureCollection} "numberOfFeatures" xml
* attribute, or {@code -1} if unknown.
*
* @return number of features advertised by server, or {@code -1} if unknown
*/
public int getNumberOfFeatures();
/**
* @return the next feature in the stream or {@code null} if there are no more features to
* parse.
*/
SimpleFeature parse() throws IOException;
void close() throws IOException;
}