| gvSIG desktop 1

/* 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 org.gvsig.fmap.drivers.writing;

import java.sql.Connection;

import java.sql.SQLException;

import java.sql.Statement;

import org.gvsig.fmap.drivers.reading.FieldDescription;

import org.gvsig.fmap.drivers.reading.ITableDefinition;

import org.gvsig.fmap.drivers.reading.XTypes;

import com.hardcode.gdbms.driver.exceptions.SchemaEditionException;

public class DbSchemaManager implements IDbSchemaManager {

        private Connection conn = null;

        public DbSchemaManager(Connection conn)

        {

                this.conn = conn;

        }

        public Connection getConnection() {

                return conn;

        }

        public void createSchema(ITableDefinition dbLayerDef)

                        throws SchemaEditionException {

                String sqlCreate = "CREATE TABLE " + dbLayerDef.getName()

                                        + " ( ";

                int j=0;

                FieldDescription[] fieldsDescr = dbLayerDef.getFieldsDesc();

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

                        int fieldType = fieldsDescr[i].getFieldType();

                        String strType = XTypes.fieldTypeToString(fieldType);

                        if (j == 0)

                                sqlCreate = sqlCreate + fieldsDescr[i].getFieldName() + " " + strType;

                        else

                                sqlCreate = sqlCreate + ", " + fieldsDescr[i].getFieldName() + " "

                                                + strType;

                        j++;

                }

                sqlCreate = sqlCreate + ");";

                try {

                        Statement st = conn.createStatement();

                        st.execute(sqlCreate);

                } catch (SQLException e) {

                        throw new SchemaEditionException(dbLayerDef.getName(),e);

                }

        }

        public void removeSchema(String name) throws SchemaEditionException {

                String sqlDrop = "DROP TABLE " + name;

                try {

                        Statement st = conn.createStatement();

                        st.execute(sqlDrop);

                } catch (SQLException e) {

                        throw new SchemaEditionException(name,e);

                }

        }

        public void renameSchema(String antName, String newName)  throws SchemaEditionException {

                String sqlAlter = "ALTER TABLE " + antName + " RENAME TO " + newName;

                try {

                        Statement st = conn.createStatement();

                        st.execute(sqlAlter);

                } catch (SQLException e) {

                        throw new SchemaEditionException(antName,e);

                }

        }

}