Application: gvSIG desktop

/*

 * Created on 12-oct-2004

 */

package com.hardcode.gdbms.engine.instruction;

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.data.driver.DriverException;

import java.util.ArrayList;

/**

 * Adaptador

 *

 * @author Fernando Gonz?lez Cort?s

 */

public class TableListAdapter extends Adapter {

        private DataSource[] tables;

        /**

         * Obtiene los DataSources de la cl?usula from

         *

         * @return array de datasources

         *

         * @throws TableNotFoundException Si no se encontr? alguna tabla

         * @throws RuntimeException

         */

        public DataSource[] getTables() throws TableNotFoundException {

                if (tables == null) {

                        Adapter[] hijos = getChilds();

                        ArrayList ret = new ArrayList();

                        try {

                                for (int i = 0; i < hijos.length; i++) {

                                        TableRefAdapter tRef = (TableRefAdapter) hijos[i];

                                        if (tRef.getAlias() == null) {

                                                ret.add(getInstructionContext().getDSFActory()

                                                                        .createRandomDataSource(tRef.getName(), DataSourceFactory.MANUAL_MODE));

                                        } else {

                                                ret.add(getInstructionContext().getDSFActory()

                                                                        .createRandomDataSource(tRef.getName(),

                                                                tRef.getAlias(), DataSourceFactory.MANUAL_MODE));

                                        }

                                }

                                tables = (DataSource[]) ret.toArray(new DataSource[0]);

                        } catch (NoSuchTableException e) {

                                throw new TableNotFoundException(e);

                        } catch (DriverLoadException e) {

                                throw new RuntimeException(e);

                        } catch (DriverException e) {

                throw new RuntimeException(e);

            }

                }

                return tables;

        }

}