001    //$HeadURL: svn+ssh://rbezema@svn.wald.intevation.org/deegree/base/branches/2.2_testing/src/org/deegree/ogcwebservices/wms/GetFeatureInfoHandler.java $
002    /*----------------    FILE HEADER  ------------------------------------------
003    
004     This file is part of deegree.
005     Copyright (C) 2001-2008 by:
006     EXSE, Department of Geography, University of Bonn
007     http://www.giub.uni-bonn.de/deegree/
008     lat/lon GmbH
009     http://www.lat-lon.de
010    
011     This library is free software; you can redistribute it and/or
012     modify it under the terms of the GNU Lesser General Public
013     License as published by the Free Software Foundation; either
014     version 2.1 of the License, or (at your option) any later version.
015    
016     This library is distributed in the hope that it will be useful,
017     but WITHOUT ANY WARRANTY; without even the implied warranty of
018     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
019     Lesser General Public License for more details.
020    
021     You should have received a copy of the GNU Lesser General Public
022     License along with this library; if not, write to the Free Software
023     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
024    
025     Contact:
026    
027     Andreas Poth
028     lat/lon GmbH
029     Aennchenstr. 19
030     53115 Bonn
031     Germany
032     E-Mail: poth@lat-lon.de
033    
034     Prof. Dr. Klaus Greve
035     Department of Geography
036     University of Bonn
037     Meckenheimer Allee 166
038     53115 Bonn
039     Germany
040     E-Mail: greve@giub.uni-bonn.de
041    
042     ---------------------------------------------------------------------------*/
043    package org.deegree.ogcwebservices.wms;
044    
045    import org.deegree.ogcwebservices.OGCWebServiceException;
046    import org.deegree.ogcwebservices.wms.operation.GetFeatureInfoResult;
047    
048    /**
049     * Interface for defining access to GetFeatureInfoHandlers. Default implementation to be used if no
050     * other is specified in deegree WMS configuration is
051     * 
052     * @see org.deegree.ogcwebservices.wms.DefaultGetFeatureInfoHandler
053     * 
054     * @version $Revision: 9345 $
055     * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
056     * @author last edited by: $Author: apoth $
057     * 
058     * @version 1.0. $Revision: 9345 $, $Date: 2007-12-27 17:22:25 +0100 (Do, 27 Dez 2007) $
059     * 
060     * @since 1.1
061     */
062    public interface GetFeatureInfoHandler {
063        /**
064         * performs a GetFeatureInfo request and retruns the result encapsulated within a
065         * <tt>WMSFeatureInfoResponse</tt> object.
066         * <p>
067         * The method throws an WebServiceException that only shall be thrown if an fatal error occurs
068         * that makes it imposible to return a result. If something wents wrong performing the request
069         * (none fatal error) The exception shall be encapsulated within the response object to be
070         * returned to the client as requested (GetFeatureInfo-Request EXCEPTION-Parameter).
071         * 
072         * @return response to the GetFeatureInfo response
073         * @throws OGCWebServiceException
074         */
075        public abstract GetFeatureInfoResult performGetFeatureInfo()
076                                throws OGCWebServiceException;
077    }