root / branches / Mobile_Compatible_Hito_1 / libFMap / src / es / prodevelop / gvsig / mobile / fmap / layer / VectorialAdapter.java @ 21606
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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*
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* Generalitat Valenciana
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* Conselleria d'Infraestructures i Transport
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* Av. Blasco Ib??ez, 50
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* 46010 VALENCIA
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* SPAIN
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*
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* +34 963862235
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* gvsig@gva.es
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* www.gvsig.gva.es
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*
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* or
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*
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* IVER T.I. S.A
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* Salamanca 50
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* 46005 Valencia
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* Spain
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*
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* +34 963163400
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* dac@iver.es
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*/
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/************************************************
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* *
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* Modfied By: *
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* Prodevelop Integraci?n de Tecnolog?as SL *
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* Conde Salvatierra de ?lava , 34-10 *
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* 46004 Valencia *
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* Spain *
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* *
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* +34 963 510 612 *
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* +34 963 510 968 *
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* gis@prodevelop.es *
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* http://www.prodevelop.es *
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* *
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* gvSIG Mobile Team 2006 *
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* *
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************************************************/
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package es.prodevelop.gvsig.mobile.fmap.layer; |
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import java.awt.Image; |
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import java.awt.geom.Rectangle2D; |
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import java.io.IOException; |
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import com.hardcode.driverManager.DriverLoadException; |
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import com.hardcode.gdbms.engine.data.DataSource; |
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import com.hardcode.gdbms.engine.values.Value; |
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import es.prodevelop.gvsig.mobile.fmap.core.DefaultFeature; |
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import es.prodevelop.gvsig.mobile.fmap.core.IFeature; |
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import es.prodevelop.gvsig.mobile.fmap.core.IGeometry; |
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import es.prodevelop.gvsig.mobile.fmap.driver.FMapDriverException; |
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import es.prodevelop.gvsig.mobile.fmap.driver.VectorialDriver; |
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/**
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* Clase padre de los adaptadores de los drivers. De momento mantiene solo el
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* ?ndice creado sobre la capa
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*/
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public abstract class VectorialAdapter implements ReadableVectorial { |
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protected VectorialDriver driver;
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/**
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* Establece el driver sobre el que act?a el adaptador
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*
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* @param driver
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*/
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public void setDriver(VectorialDriver driver) { |
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this.driver = driver;
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} |
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public Rectangle2D getShapeBounds(int i) throws IOException { |
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if (driver == null) { |
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return null; |
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} |
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return driver.getShapeBounds(i);
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} |
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/**
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* Obtiene una referencia al objeto que implementa la interfaz vectorial con
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* el fin de que las Strategy puedan optimizar en funci?n del driver.
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*
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* @return VectorialDriver
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*/
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public VectorialDriver getDriver() {
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return driver;
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} |
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/**
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* Devuelve el DataSource a pasrtir del nombre.
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*
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* @return DataSource.
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*
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* @throws DriverLoadException
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*/
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public abstract SelectableDataSource getRecordset() |
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throws DriverLoadException;
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/**
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* Por defecto devuelve null, y se le pone el icono por defecto. Si el
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* driver reescribe este m?todo, se usar? este icono en el TOC.
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*
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* @return
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*/
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public Image getImageIcon() { |
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return null; |
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} |
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/**
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* @see com.iver.cit.gvsig.fmap.layers.ReadableVectorial#getShapeCount()
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*/
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public int getShapeCount() throws FMapDriverException { |
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try {
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return getDriver().getShapeCount();
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} catch (IOException e) { |
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throw new FMapDriverException(e.getMessage()); |
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} |
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} |
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/**
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* @see com.iver.cit.gvsig.fmap.layers.ReadableVectorial#getFullExtent()
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*/
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public Rectangle2D getFullExtent() throws FMapDriverException { |
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try {
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Rectangle2D aux = getDriver().getFullExtent();
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// Para evitar que una nueva capa a?adida a una vista vac?a no
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// tenga un lienzo para pintar.
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if (aux == null) |
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aux = new Rectangle2D.Double(1,1,10,10); |
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return aux;
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} catch (IOException e) { |
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throw new FMapDriverException(e.getMessage()); |
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} |
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} |
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/**
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* En la implementaci?n por defecto podemos hacer que cada feature tenga ID =
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* numero de registro. En el DBAdapter podr?amos "overrride" este m?todo y
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* poner como ID de la Feature el campo ?nico escogido en la base de datos.
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*
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* @param numReg
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* @return
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* @throws FMapDriverException
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*/
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public IFeature getFeature(int numReg) throws FMapDriverException { |
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IGeometry geom; |
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IFeature feat = null;
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try {
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geom = getShape(numReg); |
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DataSource rs = getRecordset();
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Value[] regAtt = new Value[rs.getFieldCount()]; |
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for (int fieldId = 0; fieldId < rs.getFieldCount(); fieldId++) { |
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regAtt[fieldId] = rs.getFieldValue(numReg, fieldId); |
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} |
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feat = new DefaultFeature(geom, regAtt, numReg + ""); |
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} catch (FMapDriverException e) {
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throw new FMapDriverException(e.getMessage()); |
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} catch (DriverLoadException e) {
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throw new FMapDriverException(e.getMessage()); |
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} catch (com.hardcode.gdbms.engine.data.driver.DriverException e) {
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throw new FMapDriverException(e.getMessage()); |
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} |
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return feat;
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} |
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/*
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* (non-Javadoc)
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*
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* @see com.iver.cit.gvsig.fmap.layers.ReadableVectorial#getFeatureIterator(java.awt.geom.Rectangle2D,
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* java.lang.String) Lo sobreescribir?n los adapters para base de datos
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* espacial. Por defecto, suponemos un buen acceso aleatorio y usamos
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* getFeature(i)
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*/
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/* public IFeatureIterator getFeatureIterator(Rectangle2D r, String strEPSG)
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throws FMapDriverException {
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try {
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return new RandomAccessFeatureIterator(driver, getRecordset(), r,
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strEPSG);
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} catch (DriverLoadException e) {
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throw new FMapDriverException(e);
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}
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}
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public IFeatureIterator getFeatureIterator(String strEPSG)
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throws FMapDriverException {
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try {
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return new RandomAccessFeatureIterator(driver, getRecordset(), strEPSG);
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} catch (DriverLoadException e) {
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throw new FMapDriverException(e);
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}
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} */
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} |