svn-gvsig-desktop / trunk / libraries / libFMap / src / com / iver / cit / gvsig / fmap / layers / SelectableDataSource.java @ 1828
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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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package com.iver.cit.gvsig.fmap.layers; |
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import java.io.IOException; |
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import org.apache.log4j.Logger; |
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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.data.DataSourceFactory; |
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import com.hardcode.gdbms.engine.data.DataSourceLayerMemento; |
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import com.hardcode.gdbms.engine.data.Memento; |
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import com.hardcode.gdbms.engine.data.MementoException; |
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import com.hardcode.gdbms.engine.data.NoSuchTableException; |
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import com.hardcode.gdbms.engine.data.OperationLayerMemento; |
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import com.hardcode.gdbms.engine.data.driver.DriverException; |
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import com.hardcode.gdbms.engine.data.driver.DriverInfo; |
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import com.hardcode.gdbms.engine.instruction.FieldNotFoundException; |
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import com.hardcode.gdbms.engine.instruction.SemanticException; |
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import com.hardcode.gdbms.engine.values.Value; |
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import com.hardcode.gdbms.parser.ParseException; |
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import com.iver.utiles.XMLEntity; |
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/**
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* DataSource seleccionable.
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*
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* @author Fernando Gonz?lez Cort?s
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*/
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public class SelectableDataSource implements DataSource { |
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private static Logger logger = Logger.getLogger(SelectableDataSource.class.getName()); |
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private SelectionSupport selectionSupport = new SelectionSupport(); |
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private DataSource dataSource; |
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/**
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* Crea un nuevo SelectableDataSource.
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*
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* @param name
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* @param ds
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*/
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public SelectableDataSource(DataSource ds) { |
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dataSource = ds; |
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} |
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public static SelectableDataSource createSelectableDataSource(XMLEntity xml) throws NoSuchTableException, ParseException, DriverLoadException, DriverException, SemanticException, IOException{ |
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SelectionSupport ss = new SelectionSupport();
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ss.setXMLEntity(xml.getChild(0));
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XMLEntity xmlDS = xml.getChild(1);
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DataSource dataSource = null; |
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if (xmlDS.contains("tableName")){ |
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dataSource = LayerFactory.getDataSourceFactory().createRandomDataSource( |
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xmlDS.getStringProperty("tableName"),
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xmlDS.getStringProperty("tableAlias"), DataSourceFactory.AUTOMATIC_MODE);
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}else if (xmlDS.contains("sql")){ |
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dataSource = LayerFactory.getDataSourceFactory().executeSQL(xmlDS.getStringProperty("sql"), DataSourceFactory.AUTOMATIC_MODE);
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} |
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SelectableDataSource ret = new SelectableDataSource(dataSource);
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ret.selectionSupport = ss; |
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return ret;
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} |
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public Memento getMemento() throws MementoException { |
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return dataSource.getMemento();
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} |
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public void setDataSourceFactory(DataSourceFactory dsf) { |
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dataSource.setDataSourceFactory(dsf); |
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} |
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public void setSourceInfo(DriverInfo sourceInfo) { |
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dataSource.setSourceInfo(sourceInfo); |
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} |
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/**
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* A?ade el soporte para la selecci?n.
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*
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* @param selectionSupport
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*/
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public void setSelectionSupport(SelectionSupport selectionSupport) { |
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this.selectionSupport = selectionSupport;
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} |
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/**
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* Devuelve el DBMS.
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*
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* @return String.
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*/
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public String getDBMS() { |
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return dataSource.getDBMS();
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} |
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/**
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* Devuelve el n?mero de campos.
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*
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* @return N?mero de campos.
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*
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* @throws DriverException
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*/
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public int getFieldCount() throws DriverException { |
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return dataSource.getFieldCount();
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} |
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/**
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* Devuelve el ?ndice del campo a partir de su nombre.
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*
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* @param arg0 nombre del campo.
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*
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* @return ?ndice.
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*
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* @throws DriverException
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* @throws FieldNotFoundException
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*/
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public int getFieldIndexByName(String arg0) |
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throws DriverException {
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return dataSource.getFieldIndexByName(arg0);
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} |
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/**
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* Devuelve el nombre del campo a partir del ?ndice.
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*
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* @param arg0 ?ndice.
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*
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* @return nombre del campo.
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*
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* @throws DriverException
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*/
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public String getFieldName(int arg0) throws DriverException { |
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return dataSource.getFieldName(arg0);
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} |
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/**
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* Devuelve el valor a partir del n?mro de fila y columna.
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*
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* @param arg0 n?mero de registro.
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* @param arg1 n?mero de campo.
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*
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* @return Valor.
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*
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* @throws DriverException
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*/
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public Value getFieldValue(long arg0, int arg1) throws DriverException { |
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return dataSource.getFieldValue(arg0, arg1);
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} |
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/**
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* Devuelve el nombre del DataSource.
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*
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* @return Nombre.
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*/
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public String getName() { |
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return dataSource.getName();
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} |
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/**
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* Devuelve el n?mro de filas en total.
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*
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* @return n?mero de filas.
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*
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* @throws DriverException
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*/
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public long getRowCount() throws DriverException { |
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return dataSource.getRowCount();
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} |
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/**
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* Inicializa el dataSource.
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*
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* @throws DriverException
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*/
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public void start() throws DriverException { |
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logger.debug("dataSource.start()");
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dataSource.start(); |
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} |
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/**
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* Finaliza el DataSource.
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*
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* @throws DriverException
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*/
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public void stop() throws DriverException { |
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logger.debug("dataSource.stop()");
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dataSource.stop(); |
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} |
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/**
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* Cuando ocurre un evento de cambio en la selecci?n, ?ste puede ser uno de
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* una gran cantidad de eventos. Con el fin de no propagar todos estos
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* eventos, se realiza la propagaci?n de manera manual al final de la
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* "r?faga" de eventos
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*/
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public void fireSelectionEvents() { |
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selectionSupport.fireSelectionEvents(); |
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} |
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/**
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* A?ade un nuevo Listener al SelectionSupport.
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*
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* @param listener SelectionListener.
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*/
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public void addSelectionListener(SelectionListener listener) { |
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selectionSupport.addSelectionListener(listener); |
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} |
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/**
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* Borra un Listener al SelectionSupport.
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*
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* @param listener Listener a borrar.
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*/
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public void removeSelectionListener(SelectionListener listener) { |
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selectionSupport.removeSelectionListener(listener); |
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} |
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/**
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* Borra la selecci?n.
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*/
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public void clearSelection() { |
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selectionSupport.clearSelection(); |
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} |
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/**
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* Develve un FBitSet con los ?ndices de los elementos seleccionados.
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*
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* @return FBitset con los elementos seleccionados.
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*/
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public FBitSet getSelection() {
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return selectionSupport.getSelection();
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} |
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/**
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* Devuelve el SelectionSupport.
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*
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* @return SelectinSuport.
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*/
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public SelectionSupport getSelectionSupport() {
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return selectionSupport;
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} |
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/**
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* Devuelve true si el elemento est? seleccionado.
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*
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* @param recordIndex ?ndice del registro.
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*
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* @return True si el registro est? seleccionado.
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*/
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public boolean isSelected(int recordIndex) { |
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return selectionSupport.isSelected(recordIndex);
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} |
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/**
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* Inserta una nueva selecci?n.
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*
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* @param selection FBitSet.
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*/
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public void setSelection(FBitSet selection) { |
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selectionSupport.setSelection(selection); |
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} |
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/**
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* Inserta un nuevo nombre para el dataSource.
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*
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* @param name Nuevo nombre del DataSource.
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*
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* @throws RuntimeException
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*/
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public void setName(String name) { |
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try {
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LayerFactory.getDataSourceFactory().changeDataSourceName(dataSource.getName(), name); |
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} catch (NoSuchTableException e) {
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throw new RuntimeException("No se encuentra la tabla????"); |
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} |
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} |
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private void putMemento(XMLEntity xml) throws XMLException { |
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try {
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XMLEntity child = new XMLEntity();
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Memento memento = getMemento(); |
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if (memento instanceof DataSourceLayerMemento){ |
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DataSourceLayerMemento m = (DataSourceLayerMemento) memento; |
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child.putProperty("tableAlias", m.getTableAlias());
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child.putProperty("tableName", m.getTableName());
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}else if (memento instanceof OperationLayerMemento){ |
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OperationLayerMemento m = (OperationLayerMemento) memento; |
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child.putProperty("sql", m.getSql());
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}else{
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throw new RuntimeException("Tipo de dataSource no contemplado"); |
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} |
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xml.addChild(child); |
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} catch (MementoException e) {
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throw new XMLException(e); |
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} |
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} |
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/**
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* Devuelve el XMLEntity con la informaci?n necesaria para reproducir el
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* DataSource.
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*
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* @return XMLEntity.
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* @throws XMLException
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*/
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public XMLEntity getXMLEntity() throws XMLException { |
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XMLEntity xml = new XMLEntity();
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xml.putProperty("className",this.getClass().getName()); |
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xml.addChild(selectionSupport.getXMLEntity()); |
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putMemento(xml); |
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return xml;
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} |
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/**
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* @see com.hardcode.gdbms.engine.data.DataSource#getWhereFilter()
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*/
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public long[] getWhereFilter() throws IOException { |
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return dataSource.getWhereFilter();
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} |
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/**
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* @see com.hardcode.gdbms.engine.data.ReadDriver#getFieldType(int)
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*/
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public int getFieldType(int i) throws DriverException { |
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return dataSource.getFieldType(i);
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} |
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/**
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* @see com.hardcode.gdbms.engine.data.DataSource#getDataSourceFactory()
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*/
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public DataSourceFactory getDataSourceFactory() {
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return dataSource.getDataSourceFactory();
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} |
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/**
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* @see com.hardcode.gdbms.engine.data.HasProperties#getProperty(java.lang.String)
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*/
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public String getProperty(String propertyName) { |
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return dataSource.getProperty(propertyName);
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} |
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/**
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* @see com.hardcode.gdbms.engine.data.DataSource#getAsString()
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*/
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public String getAsString() throws DriverException { |
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return dataSource.getAsString();
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} |
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} |