Application: gvSIG desktop

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

 *

 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 *

 * For more information, contact:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

package com.iver.cit.gvsig.fmap.layers;

import java.awt.Graphics2D;

import java.awt.geom.Point2D;

import java.awt.geom.Rectangle2D;

import java.awt.image.BufferedImage;

import java.io.IOException;

import java.util.ArrayList;

import java.util.BitSet;

import org.apache.log4j.Logger;

import org.cresques.cts.ICoordTrans;

import com.hardcode.driverManager.Driver;

import com.hardcode.driverManager.DriverLoadException;

import com.hardcode.gdbms.engine.data.DataSource;

import com.hardcode.gdbms.engine.data.DataSourceFactory;

import com.hardcode.gdbms.engine.data.NoSuchTableException;

import com.hardcode.gdbms.engine.instruction.FieldNotFoundException;

import com.hardcode.gdbms.engine.values.DoubleValue;

import com.hardcode.gdbms.engine.values.FloatValue;

import com.hardcode.gdbms.engine.values.NullValue;

import com.hardcode.gdbms.engine.values.NumericValue;

import com.hardcode.gdbms.engine.values.Value;

import com.iver.cit.gvsig.fmap.DriverException;

import com.iver.cit.gvsig.fmap.ViewPort;

import com.iver.cit.gvsig.fmap.core.IGeometry;

import com.iver.cit.gvsig.fmap.core.v02.FLabel;

import com.iver.cit.gvsig.fmap.core.v02.FSymbol;

import com.iver.cit.gvsig.fmap.drivers.BoundedShapes;

import com.iver.cit.gvsig.fmap.drivers.DriverAttributes;

import com.iver.cit.gvsig.fmap.drivers.DriverIOException;

import com.iver.cit.gvsig.fmap.drivers.VectorialDatabaseDriver;

import com.iver.cit.gvsig.fmap.drivers.VectorialDriver;

import com.iver.cit.gvsig.fmap.edition.EditableAdapter;

import com.iver.cit.gvsig.fmap.edition.VectorialEditableAdapter;

import com.iver.cit.gvsig.fmap.layers.layerOperations.AlphanumericData;

import com.iver.cit.gvsig.fmap.layers.layerOperations.ClassifiableVectorial;

import com.iver.cit.gvsig.fmap.layers.layerOperations.Labelable;

import com.iver.cit.gvsig.fmap.layers.layerOperations.RandomVectorialData;

import com.iver.cit.gvsig.fmap.layers.layerOperations.Selectable;

import com.iver.cit.gvsig.fmap.layers.layerOperations.SingleLayer;

import com.iver.cit.gvsig.fmap.layers.layerOperations.VectorialData;

import com.iver.cit.gvsig.fmap.operations.Cancellable;

import com.iver.cit.gvsig.fmap.operations.strategies.FeatureVisitor;

import com.iver.cit.gvsig.fmap.operations.strategies.Strategy;

import com.iver.cit.gvsig.fmap.operations.strategies.StrategyManager;

import com.iver.cit.gvsig.fmap.operations.strategies.VisitException;

import com.iver.cit.gvsig.fmap.rendering.Legend;

import com.iver.cit.gvsig.fmap.rendering.LegendChangedEvent;

import com.iver.cit.gvsig.fmap.rendering.LegendFactory;

import com.iver.cit.gvsig.fmap.rendering.SingleSymbolLegend;

import com.iver.cit.gvsig.fmap.rendering.VectorialLegend;

import com.iver.utiles.IPersistance;

import com.iver.utiles.PostProcessSupport;

import com.iver.utiles.XMLEntity;

import com.vividsolutions.jts.geom.Coordinate;

import com.vividsolutions.jts.geom.Envelope;

import com.vividsolutions.jts.index.SpatialIndex;

import com.vividsolutions.jts.index.quadtree.Quadtree;

import com.vividsolutions.jts.index.strtree.STRtree;

/**

 * Capa b?sica Vectorial.

 *

 * @author Fernando Gonz?lez Cort?s

 */

//TODO Cuando no sea para pruebas debe no ser public

public class FLyrVect extends FLyrDefault implements Labelable, ClassifiableVectorial, SingleLayer, VectorialData,

        RandomVectorialData,AlphanumericData {

        private static Logger logger = Logger.getLogger(FLyrVect.class.getName());

        /** Leyenda de la capa vectorial */

        private VectorialLegend legend;

        private int typeShape = -1;

        private LayerChangeSupport layerChangeSupport = new LayerChangeSupport();

        private ReadableVectorial source;

        //private SelectableDataSource sds;

    private SpatialIndex spatialIndex = null;

    private boolean bHasJoin = false;

        /**

         * A?ade un SelectionListener a la lista de listeners.

         *

         * @param listener SelectionListener.

         */

        /*public void addSelectionListener(SelectionListener listener) {

                try {

                        getRecordset().addSelectionListener(listener);

                } catch (DriverException e) {

                        // TODO Auto-generated catch block

                        e.printStackTrace();

                }

        }

*/

        /**

         * Borra un selectionListener de la lista de listeners.

         *

         * @param listener SelectionListener

         */

        /*public void removeSelectionListener(SelectionListener listener) {

                try {

                        getRecordset().removeSelectionListener(listener);

                } catch (DriverException e) {

                        // TODO Auto-generated catch block

                        e.printStackTrace();

                }

        }

*/

        /**

         * Cuando ocurre un evento de cambio en la selecci?n, ?ste puede ser uno de

         * una gran cantidad de eventos. Con el fin de no propagar todos estos

         * eventos, se realiza la propagaci?n de manera manual al final de la

         * "r?faga" de eventos

         */

        /*public void fireSelectionEvents() {

                try {

                        getRecordset().fireSelectionEvents();

                } catch (DriverException e) {

                        // TODO Auto-generated catch block

                        e.printStackTrace();

                }

        }

*/

        /**

         * Devuelve el VectorialAdapater de la capa.

         *

         * @return VectorialAdapter.

         */

        public ReadableVectorial getSource() {

                return source;

        }

        /**

         * Inserta el VectorialAdapter a la capa.

         *

         * @param va VectorialAdapter.

         */

        public void setSource(ReadableVectorial rv) {

                source = rv;

        }

        /**

         * @see com.iver.cit.gvsig.fmap.layers.LayerOperations#getFullExtent()

         */

        public Rectangle2D getFullExtent() throws DriverException {

                try {

                        Rectangle2D rAux;

                        logger.debug("source.start()");

                        source.start();

                        rAux = source.getFullExtent();

                        logger.debug("source.stop()");

                        source.stop();

                        // Si existe reproyecci?n, reproyectar el extent

                        ICoordTrans ct = getCoordTrans();

                        if (ct != null) {

                                Point2D pt1 = new Point2D.Double(rAux.getMinX(), rAux.getMinY());

                                Point2D pt2 = new Point2D.Double(rAux.getMaxX(), rAux.getMaxY());

                                pt1 = ct.convert(pt1, null);

                                pt2 = ct.convert(pt2, null);

                                rAux = new Rectangle2D.Double();

                                rAux.setFrameFromDiagonal(pt1, pt2);

                        }

                        return rAux;

                } catch (DriverIOException e) {

                        throw new DriverException(e);

                }

        }

        /**

         * @see com.iver.cit.gvsig.fmap.layers.LayerOperations#draw(java.awt.image.BufferedImage,

         *                 java.awt.Graphics2D, com.iver.cit.gvsig.fmap.ViewPort)

         */

        public void draw(BufferedImage image, Graphics2D g, ViewPort viewPort,

                Cancellable cancel,double scale) throws DriverException {

                if (isWithinScale(scale)){

            // Las que solo tienen etiquetado sin pintar el shape,

            // no pasamos por ellas

            boolean bDrawShapes = true;

            if (legend instanceof SingleSymbolLegend)

            {

                if (legend.getDefaultSymbol().isShapeVisible() == false)

                    bDrawShapes = false;

            }

            if (bDrawShapes)

            {

                Strategy strategy = StrategyManager.getStrategy(this);

                try{

                strategy.draw(image, g, viewPort, cancel);

                }catch (DriverException e) {

                                        this.setVisible(false);

                                        this.setActive(false);

                                        throw e;

                                }

            }

                    if (getVirtualLayers() != null) {

                            getVirtualLayers().draw(image, g, viewPort, cancel,scale);

                    }

                    if (getLayerText() != null) {

                            getLayerText().draw(image, g, viewPort, cancel,scale);

                    }

                }

        }

        /**

         * @see com.iver.cit.gvsig.fmap.layers.FLayer#print(java.awt.Graphics2D,

         *                 com.iver.cit.gvsig.fmap.ViewPort,

         *                 com.iver.cit.gvsig.fmap.operations.Cancellable)

         */

        public void print(Graphics2D g, ViewPort viewPort, Cancellable cancel,double scale)

                throws DriverException {

                if (isVisible() && isWithinScale(scale)){

                Strategy strategy = StrategyManager.getStrategy(this);

                strategy.print(g, viewPort, cancel);

                if (getLayerText() != null) {

                        getLayerText().draw(null, g, viewPort, cancel,scale);

                }

                }

        }

        /**

         * @see com.iver.cit.gvsig.fmap.layers.VectorialOperations#createLabelLayer(int)

         */

        // public FLayer createLabelLayer(int fieldId) {

    public FLayer createLabelLayer(SelectableDataSource ds) {

                FLyrText layerText = null;

        try {

            layerText = new FLyrText();

                        layerText.setLegend((VectorialLegend) getLegend());

            layerText.createLabels(this);

                } catch (FieldNotFoundException e1) {

                        // TODO Auto-generated catch block

                        e1.printStackTrace();

                } catch (DriverException e1) {

                        // TODO Auto-generated catch block

                        e1.printStackTrace();

        }

                setLayerText(layerText);

                layerText.setCoordTrans(getCoordTrans());

                return layerText;

        }

        /**

         * @see com.iver.cit.gvsig.fmap.layers.VectorialOperations#removeLabels()

         */

        public void removeLabels() {

                setLayerText(null);

        }

    /* (non-Javadoc)

     * @see com.iver.cit.gvsig.fmap.layers.layerOperations.RandomVectorialData#deleteSpatialIndex()

     */

    public void deleteSpatialIndex()

    {

        spatialIndex = null;

    }

        /* (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.layers.layerOperations.RandomVectorialData#createIndex()

         */

        public void createSpatialIndex() {

        // FJP: ESTO HABR? QUE CAMBIARLO. PARA LAS CAPAS SECUENCIALES, TENDREMOS

        // QUE ACCEDER CON UN WHILE NEXT. (O mejorar lo de los FeatureVisitor

        // para que acepten recorrer sin geometria, solo con rectangulos.

        spatialIndex = new Quadtree();

        ReadableVectorial va = getSource();

        ICoordTrans ct = getCoordTrans();

        BoundedShapes shapeBounds = (BoundedShapes) va.getDriver();

        try {

            va.start();

            for (int i=0; i < va.getShapeCount(); i++)

            {

                Rectangle2D r = shapeBounds.getShapeBounds(i);

                // TODO: MIRAR COMO SE TRAGAR?A ESTO LO DE LAS REPROYECCIONES

                if (ct != null) {

                    r = ct.convert(r);

                }

                Coordinate c1 = new Coordinate(r.getMinX(), r.getMinY());

                Coordinate c2 = new Coordinate(r.getMaxX(), r.getMaxY());

                Envelope env = new Envelope(c1, c2);

                spatialIndex.insert(env, new Integer(i));

            } // for

            va.stop();

        } catch (DriverIOException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        } catch (IOException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

        }

        /**

         * @see com.iver.cit.gvsig.fmap.layers.VectorialOperations#process(com.iver.cit.gvsig.fmap.operations.strategies.FeatureVisitor,

         *                 FBitSet)

         */

        public void process(FeatureVisitor visitor, FBitSet subset)

                throws DriverException, VisitException {

                Strategy s = StrategyManager.getStrategy(this);

                s.process(visitor, subset);

        }

        /**

         * @see com.iver.cit.gvsig.fmap.layers.layerOperations.VectorialData#process(com.iver.cit.gvsig.fmap.operations.strategies.FeatureVisitor)

         */

        public void process(FeatureVisitor visitor)

                throws DriverException, VisitException {

                Strategy s = StrategyManager.getStrategy(this);

                s.process(visitor);

        }

        /**

         * @see com.iver.cit.gvsig.fmap.layers.CommonOperations#setSelection(com.iver.cit.gvsig.fmap.operations.selection.VectorialSubSet)

         */

        /*public void setSelection(FBitSet selection) {

                try {

                        getRecordset().setSelection(selection);

                } catch (DriverException e) {

                        // TODO Auto-generated catch block

                        e.printStackTrace();

                }

                fireSelectionEvents();

        }

*/

        /**

         * @see com.iver.cit.gvsig.fmap.layers.CommonOperations#isSelected(int)

         */

        /*public boolean isSelected(int index) {

                try {

                        return getRecordset().isSelected(index);

                } catch (DriverException e) {

                        // TODO Auto-generated catch block

                        e.printStackTrace();

                }

                return false;

        }

*/

        /**

         * @see com.iver.cit.gvsig.fmap.layers.CommonOperations#getSelection()

         */

        /*public FBitSet getSelection() {

                try {

                        return getRecordset().getSelection();

                } catch (DriverException e) {

                        // TODO Auto-generated catch block

                        e.printStackTrace();

                }

                return new FBitSet();

        }

*/

        /**

         * @see com.iver.cit.gvsig.fmap.layers.CommonOperations#clearSelection()

         */

        /*public void clearSelection() {

                try {

                        getRecordset().clearSelection();

                } catch (DriverException e) {

                        // TODO Auto-generated catch block

                        e.printStackTrace();

                }

        }*/

        /* (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.layers.layerOperations.RandomVectorialData#queryByRect(java.awt.geom.Rectangle2D)

         */

        public FBitSet queryByRect(Rectangle2D rect) throws DriverException {

                Strategy s = StrategyManager.getStrategy(this);

                return s.queryByRect(rect);

        }

    public FBitSet queryByPoint(Point2D p, double tolerance) throws DriverException

    {

        Strategy s = StrategyManager.getStrategy(this);

        return s.queryByPoint(p, tolerance);

    }

    public FBitSet queryByShape(IGeometry g, int relationship) throws DriverException, VisitException

    {

        Strategy s = StrategyManager.getStrategy(this);

        return s.queryByShape(g, relationship);

    }

        /**

         * @throws DriverException

         * @see com.iver.cit.gvsig.fmap.layers.CommonOperations#getRecordset()

         */

        /*public SelectableDataSource getRecordset() throws DriverException {

                if (sds == null){

                        try {

                                DataSource ds = getSource().getRecordset();

                                if (ds == null) {

                                        return null;

                                }

                                sds = new SelectableDataSource(ds);

                                //sds.setSelectionSupport(selectionSupport);

                                return sds;

                        } catch (DriverLoadException e) {

                                throw new DriverException(e);

                        } catch (com.hardcode.gdbms.engine.data.driver.DriverException e) {

                                throw new DriverException(e);

            }

                }

                return sds;

        }

*/

    /**

     * Para cuando haces una uni?n, sustituyes el recorset por el nuevo.

     * De esta forma, podr?s poner leyendas basadas en el nuevo

     * recordset

     * @param newSds

     * @throws DriverException

     * @throws FieldNotFoundException

     * @throws FieldNotFoundException

     */

 /*   public void setRecordset(SelectableDataSource newSds) throws DriverException, FieldNotFoundException

    {

        sds = newSds;

        //sds.setSelectionSupport(selectionSupport);

        legend.setDataSource(sds);

        logger.debug("Recordset cambiado a " + sds.getName());

    }

*/

        /**

         * @see com.iver.cit.gvsig.fmap.layers.CommonOperations#setLegend(int,

         *                 com.iver.cit.gvsig.fmap.rendering.Legend)

         */

        public void setLegend(VectorialLegend r)

                throws DriverException, FieldNotFoundException {

                VectorialLegend oldLegend = legend;

                legend = r;

                try {

                        legend.setDataSource(getRecordset());

                        if (legend.getLabelField() != null) {

                            // sds.start();

                                // int idLabelField = getRecordset().getFieldIndexByName(legend.getLabelField());

                                createLabelLayer(getSource().getRecordset());

                                // sds.stop();

                        }

                        else

                            removeLabels();

                } catch (DriverException e) {

                        throw new DriverException(e);

                } catch (FieldNotFoundException e) {

                        // TODO Auto-generated catch block

                        e.printStackTrace();

        } catch (DriverLoadException e) {

                        // TODO Auto-generated catch block

                        e.printStackTrace();

                }

                LegendChangedEvent e = LegendChangedEvent.createLegendChangedEvent(oldLegend, legend);

                callLegendChanged(e);

        }

        /**

         * Devuelve la Leyenda de la capa.

         *

         * @return Leyenda.

         */

        public Legend getLegend() {

                return legend;

        }

        /**

         * Devuelve el tipo de shape que contiene la capa.

         *

         * @return tipo de shape.

         *

         * @throws DriverException

         */

        public int getShapeType() throws DriverException {

                if (typeShape == -1) {

                        try {

                                logger.debug("source.start()");

                                source.start();

                                typeShape = source.getShapeType();

                                logger.debug("source.stop()");

                                source.stop();

                        } catch (DriverIOException e) {

                                throw new DriverException(e);

                        }

                }

                return typeShape;

        }

        /**

         * @throws XMLException

         * @see com.iver.cit.gvsig.fmap.layers.FLayer#getProperties()

         */

        public XMLEntity getXMLEntity() throws XMLException {

                XMLEntity xml = super.getXMLEntity();

        xml.addChild(legend.getXMLEntity());

        //try {

                        xml.addChild(getRecordset().getSelectionSupport().getXMLEntity());

                //} catch (DriverException e1) {

                        // TODO Auto-generated catch block

                //        e1.printStackTrace();

                //}

                if (source instanceof VectorialEditableAdapter){

                        source=((VectorialEditableAdapter)source).getOriginalAdapter();

                }

                if (source instanceof VectorialFileAdapter) {

                        xml.putProperty("type", "vectorial");

                        xml.putProperty("file", ((VectorialFileAdapter) source).getFile());

                        //try {

                                try {

                                        xml.putProperty("recordset-name", getSource().getRecordset().getName());

                                } catch (DriverLoadException e) {

                                        // TODO Auto-generated catch block

                                        e.printStackTrace();

                                }

                        //} catch (DriverException e) {

                        //        throw new XMLException(e);

                        //}

                } else if (source instanceof VectorialDBAdapter) {

            xml.putProperty("type", "vectorial");

            VectorialDatabaseDriver dbDriver = (VectorialDatabaseDriver) source.getDriver();

            // Guardamos el nombre del driver para poder recuperarlo

            // con el DriverManager de Fernando.

            xml.putProperty("db", dbDriver.getName());

            //try {

                try {

                                        xml.putProperty("recordset-name", getSource().getRecordset().getName());

                                } catch (DriverLoadException e) {

                                        // TODO Auto-generated catch block

                                        e.printStackTrace();

                                }

            //} catch (DriverException e) {

            //    throw new XMLException(e);

            //}

            xml.addChild(dbDriver.getXMLEntity()); // Tercer child. Antes hemos metido la leyenda y el selection support

        } else if (source instanceof VectorialAdapter) {

            // Se supone que hemos hecho algo gen?rico.

            xml.putProperty("type", "vectorial");

            VectorialDriver driver = (VectorialDriver) source.getDriver();

            // Guardamos el nombre del driver para poder recuperarlo

            // con el DriverManager de Fernando.

            xml.putProperty("other", driver.getName());

            //try {

                try {

                                        xml.putProperty("recordset-name", getSource().getRecordset().getName());

                                } catch (DriverLoadException e) {

                                        // TODO Auto-generated catch block

                                        e.printStackTrace();

                                }

            //} catch (DriverException e) {

            //    throw new XMLException(e);

            //}

            if (driver instanceof IPersistance)

            {

                // xml.putProperty("className", driver.getClass().getName());

                IPersistance persist = (IPersistance) driver;

                xml.addChild(persist.getXMLEntity()); // Tercer child. Antes hemos metido la leyenda y el selection support

            }

                }

                xml.putProperty("driverName", getSource().getDriver().getName());

        if (bHasJoin)

            xml.putProperty("hasJoin", "true");

                return xml;

        }

        /**

         * @see com.iver.cit.gvsig.fmap.layers.FLyrDefault#setXMLEntity(com.iver.utiles.XMLEntity)

         */

        public void setXMLEntity03(XMLEntity xml)

                throws XMLException {

                super.setXMLEntity(xml);

                legend = LegendFactory.createFromXML03(xml.getChild(0));

                try {

                        // legend.setDataSource(getRecordset());

                        setLegend(legend);

                } catch (FieldNotFoundException e) {

                        throw new XMLException(e);

                } catch (DriverException e) {

                        throw new XMLException(e);

                }

                //try {

                                getRecordset().getSelectionSupport().setXMLEntity03(xml.getChild(1));

                //} catch (DriverException e) {

                        // TODO Auto-generated catch block

                //        e.printStackTrace();

                //}

        }

        /**

         * @see com.iver.cit.gvsig.fmap.layers.FLyrDefault#setXMLEntity(com.iver.utiles.XMLEntity)

         */

        public void setXMLEntity(XMLEntity xml)

                throws XMLException {

        super.setXMLEntity(xml);

                legend = LegendFactory.createFromXML(xml.getChild(0));

                                getRecordset().getSelectionSupport().setXMLEntity(xml.getChild(1));

                String recordsetName = xml.getStringProperty("recordset-name");

                try {

                        LayerFactory.getDataSourceFactory().changeDataSourceName(

                   getSource().getRecordset().getName(), recordsetName

                                        );

            // Hacemos que el recordset que hemos creado antes (los

            // recordset se crean antes que todo) sea el recordset

            // de esta capa. Y del que se crea automaticamente

            // en el setLegend del createLayer, nos olvidamos

                        SelectableDataSource sds=new SelectableDataSource(LayerFactory.getDataSourceFactory()

                    .createRandomDataSource(recordsetName, DataSourceFactory.AUTOMATIC_OPENING));

                        //sds.setSelectionSupport(selectionSupport);

            //((EditableAdapter)getSource()).setRecordSet(sds);

                } catch (NoSuchTableException e1) {

                        throw new XMLException(e1);

                }  catch (com.hardcode.gdbms.engine.data.driver.DriverException e1) {

            throw new XMLException(e1);

        } catch (DriverLoadException e1) {

            throw new XMLException(e1);

        }

        // Si tiene una uni?n, lo marcamos para que no se cree la leyenda hasta el final

        // de la lectura del proyecto

        if (xml.contains("hasJoin"))

        {

            setIsJoined(true);

            PostProcessSupport.addToPostProcess(this,"setLegend", legend, 1);

        }

        else

        {

            try {

                // legend.setDataSource(getRecordset());

                setLegend(legend);

            } catch (FieldNotFoundException e) {

                throw new XMLException(e);

            } catch (DriverException e) {

                throw new XMLException(e);

            }

        }

        }

        /**

         * A?ade un LegendListener a la lista de Listeners.

         *

         * @param listener LegendListener.

         */

        public void addLegendListener(LegendListener listener) {

                layerChangeSupport.addLayerListener(listener);

        }

        /**

         * Llamada al m?todo callLegendChanged de los listener.

         *

         * @param e Evento.

         */

        private void callLegendChanged(LegendChangedEvent e) {

                layerChangeSupport.callLegendChanged(e);

        }

        /**

         * Borra un LegendListener de la lista de Listeners

         *

         * @param listener LegendListener.

         */

        public void removeLegendListener(LegendListener listener) {

                layerChangeSupport.removeLayerListener(listener);

        }

        /**

         * Sobreimplementaci?n del m?todo toString para que las bases de datos

         * identifiquen la capa.

         *

         * @return DOCUMENT ME!

         */

        public String toString() {

                /*

                 * Se usa internamente para que la parte de datos

                 * identifique de forma un?voca las tablas

                 */

                String ret = super.toString();

                return "layer" + ret.substring(ret.indexOf('@') + 1);

        }

    public boolean isJoined() {

        return bHasJoin;

    }

    public void setIsJoined(boolean hasJoin) {

        bHasJoin = hasJoin;

    }

    /**

     * @return Returns the spatialIndex.

     */

    public SpatialIndex getSpatialIndex() {

        return spatialIndex;

    }

        public SelectableDataSource getRecordset() {

                try {

                        return getSource().getRecordset();

                } catch (DriverLoadException e) {

                        // TODO Auto-generated catch block

                        e.printStackTrace();

                }

                return null;

        }

        /*public SelectionSupport getSelectionSupport() {

                return selectionSupport;

        }

        public void setSelectionSupport(SelectionSupport selectionSupport) {

                this.selectionSupport = selectionSupport;

        }*/

}