// **********************************************************************// // <copyright>// //  BBN Technologies//  10 Moulton Street//  Cambridge, MA 02138//  (617) 873-8000// //  Copyright (C) BBNT Solutions LLC. All rights reserved.// // </copyright>// **********************************************************************// // $Source: /cvs/distapps/openmap/src/openmap/com/bbn/openmap/proj/ProjectionLoader.java,v $// $RCSfile: ProjectionLoader.java,v $// $Revision: 1.1.2.3 $// $Date: 2005/08/11 21:03:20 $// $Author: dietrick $// // **********************************************************************package com.bbn.openmap.proj;import java.util.Properties;/** * A ProjectionLoader is a class that knows how to create projection * classes for given parameters. The ProjectionFactory used to have * projection classes hard-coded into it, but it now uses * ProjectionLoaders to create different projections for it. It can * provide the Class to use for a certain projection, and can provide * a name and description to use for GUIs. The ProjectionFactory looks * for these in the MapHandler. *  * @see ProjectionFactory * @see BasicProjectionLoader */public interface ProjectionLoader {    /**     * Get a class name to use for the projection. This will be used     * as a key in the projection factory.     */    public Class getProjectionClass();    /**     * Get a pretty name for the projection.     */    public String getPrettyName();    /**     * Get a description for the projection.     */    public String getDescription();    /**     * Create the projection with the given parameters.     *      * @throws exception if a parameter is missing or invalid.     */    public Projection create(Properties props) throws ProjectionException;}