| gvSIG desktop 1

/* gvSIG. Geographic Information System of the Valencian Government

 *

 * Copyright (C) 2007-2008 Infrastructures and Transports Department

 * of the Valencian Gobernment (CIT)

 * 

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 * 

 * This program 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 General Public License for more details.

 * 

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, 

 * MA  02110-1301, USA.

 * 

 */

/*

 * AUTHORS (In addition to CIT):

 * 2009 {}  {{Task}}

 */

package org.gvsig.fmap.mapcontext.tools.persistence;

import java.awt.geom.Point2D;

import org.gvsig.tools.dynobject.DynStruct;

import org.gvsig.tools.persistence.AbstractSinglePersistenceFactory;

import org.gvsig.tools.persistence.PersistentState;

import org.gvsig.tools.persistence.exception.PersistenceException;

/**

 * Factory to manage the persistence of {@link Point2D} objects.

 * 

 * @author 2009- <a href="cordinyana@gvsig.org">C?sar Ordi?ana</a> - gvSIG team

 * @author 2010- <a href="jjdelcerro@gvsig.org">Joaquin Jose del Cerro</a> -

 *         gvSIG team

 */

public class Point2DPersistenceFactory extends AbstractSinglePersistenceFactory {

        static final String FIELD_X = "x";

        static final String FIELD_Y = "y";

        private static final String DYNCLASS_NAME = "Point2D";

        private static final String DYNCLASS_DESCRIPTION = "Point2D";

        /**

         * Creates a new {@link Point2DPersistenceFactory} with the

         * {@link DynStruct} definition for the {@link Point2D} objects.

         */

        public Point2DPersistenceFactory() {

                super(Point2D.class, DYNCLASS_NAME, DYNCLASS_DESCRIPTION, null, null);

                DynStruct definition = this.getDefinition();

                definition.addDynFieldDouble(FIELD_X).setMandatory(true);

                definition.addDynFieldDouble(FIELD_Y).setMandatory(true);

        }

        public Object createFromState(PersistentState state)

                        throws PersistenceException {

                double x = state.getDouble(FIELD_X);

                double y = state.getDouble(FIELD_Y);

                return new Point2D.Double(x, y);

        }

        public void saveToState(PersistentState state, Object obj)

                        throws PersistenceException {

                Point2D point = (Point2D) obj;

                state.set(FIELD_X, point.getX());

                state.set(FIELD_Y, point.getY());

        }

}