tim@132: /**
tim@132:  *
tim@132:  */
tim@132: package de.intevation.gnv.geobackend.base.query;
tim@132: 
tim@132: import org.apache.log4j.Logger;
tim@132: 
tim@132: /**
tim@132:  * @author Tim Englich <tim.englich@intevation.de>
tim@132:  *
tim@132:  */
tim@132: public class QueryExecutorFactory {
tim@132:     
tim@132:     /**
tim@132:      * the logger, used to log exceptions and additonaly information
tim@132:      */
tim@132:     private static Logger log = Logger.getLogger(QueryExecutorFactory.class);
tim@132: 
tim@132:     
tim@132:     /**
tim@132:      * The singleton Instance of this Factory.
tim@132:      */
tim@132:     private static QueryExecutorFactory instance = null;
tim@132: 
tim@132:     /**
tim@132:      * Basic-Constructor of this Class
tim@132:      */
tim@132:     private QueryExecutorFactory() {
tim@132:         super();
tim@132:     }
tim@132: 
tim@132:     /**
tim@132:      * This Method provides an singleton Instance of this Class.
tim@132:      * @return an singleton Instance of this Class
tim@132:      */
tim@132:     public static QueryExecutorFactory getInstance(){
tim@132:         if (instance == null){
tim@132:             instance = new QueryExecutorFactory();
tim@132:         }
tim@132:         return instance;
tim@132:     }
tim@132:     
tim@132:     
tim@132:     /**
tim@132:      * Getting the QueryExecutor
tim@132:      * @return the QueryExecutor
tim@132:      */
tim@132:     public QueryExecutor getQueryExecutor(){
tim@132:         return new DefaultQueryExceutor();
tim@132:     }
tim@132: }