001    //$HeadURL: svn+ssh://jwilden@svn.wald.intevation.org/deegree/base/branches/2.5_testing/src/org/deegree/ogcwebservices/wms/GetFeatureInfoHandler.java $
002    /*----------------------------------------------------------------------------
003     This file is part of deegree, http://deegree.org/
004     Copyright (C) 2001-2009 by:
005       Department of Geography, University of Bonn
006     and
007       lat/lon GmbH
008    
009     This library is free software; you can redistribute it and/or modify it under
010     the terms of the GNU Lesser General Public License as published by the Free
011     Software Foundation; either version 2.1 of the License, or (at your option)
012     any later version.
013     This library is distributed in the hope that it will be useful, but WITHOUT
014     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
015     FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
016     details.
017     You should have received a copy of the GNU Lesser General Public License
018     along with this library; if not, write to the Free Software Foundation, Inc.,
019     59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
020    
021     Contact information:
022    
023     lat/lon GmbH
024     Aennchenstr. 19, 53177 Bonn
025     Germany
026     http://lat-lon.de/
027    
028     Department of Geography, University of Bonn
029     Prof. Dr. Klaus Greve
030     Postfach 1147, 53001 Bonn
031     Germany
032     http://www.geographie.uni-bonn.de/deegree/
033    
034     e-mail: info@deegree.org
035    ----------------------------------------------------------------------------*/
036    package org.deegree.ogcwebservices.wms;
037    
038    import org.deegree.ogcwebservices.OGCWebServiceException;
039    import org.deegree.ogcwebservices.wms.operation.GetFeatureInfoResult;
040    
041    /**
042     * Interface for defining access to GetFeatureInfoHandlers. Default implementation to be used if no
043     * other is specified in deegree WMS configuration is
044     *
045     * @see org.deegree.ogcwebservices.wms.DefaultGetFeatureInfoHandler
046     *
047     * @version $Revision: 18195 $
048     * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
049     * @author last edited by: $Author: mschneider $
050     *
051     * @version 1.0. $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18 Jun 2009) $
052     *
053     * @since 1.1
054     */
055    public interface GetFeatureInfoHandler {
056        /**
057         * performs a GetFeatureInfo request and retruns the result encapsulated within a
058         * <tt>WMSFeatureInfoResponse</tt> object.
059         * <p>
060         * The method throws an WebServiceException that only shall be thrown if an fatal error occurs
061         * that makes it imposible to return a result. If something wents wrong performing the request
062         * (none fatal error) The exception shall be encapsulated within the response object to be
063         * returned to the client as requested (GetFeatureInfo-Request EXCEPTION-Parameter).
064         *
065         * @return response to the GetFeatureInfo response
066         * @throws OGCWebServiceException
067         */
068        public abstract GetFeatureInfoResult performGetFeatureInfo()
069                                throws OGCWebServiceException;
070    }