EDIT

/**

* Copyright (C) 2007 EDIT

* European Distributed Institute of Taxonomy 

* http://www.e-taxonomy.eu

* 

* The contents of this file are subject to the Mozilla Public License Version 1.1

* See LICENSE.TXT at the top of this package for the full license terms.

*/

package eu.etaxonomy.cdm.database;

import java.sql.DatabaseMetaData;

import java.sql.ResultSet;

import java.sql.SQLException;

import javax.sql.DataSource;

import org.hibernate.cache.spi.RegionFactory;

import org.springframework.beans.factory.config.BeanDefinition;

import eu.etaxonomy.cdm.config.ICdmSource;

public interface ICdmDataSource  extends DataSource,ICdmSource {

	/**

	 * Returns a BeanDefinition object of type  DataSource that contains

	 * datsource properties (url, username, password, ...)

	 * @return BeanDefinition

	 */

	public BeanDefinition getDatasourceBean();

	/**

	 * @param hbm2dll

	 * @return BeanDefinition

	 */

	public BeanDefinition getHibernatePropertiesBean(DbSchemaValidation hbm2dll);

	/**

	 * @param hbm2dll

	 * @param showSql

	 * @param formatSql

	 * @param cacheProviderClass

	 * @return BeanDefinition

	 */

	public BeanDefinition getHibernatePropertiesBean(DbSchemaValidation hbm2dll, Boolean showSql, Boolean formatSql, Boolean registerSearchListener, Class<? extends RegionFactory> cacheProviderClass);

	/**

	 * @return

	 */

	public String getFilePath();

	/**

	 * @return

	 */

	public H2Mode getMode();

	public String getUsername();

	public String getPassword();

	public String getDatabase();

	public void setMode(H2Mode h2Mode);

	public void setUsername(String username);

	public void setPassword(String password);

	public void setDatabase(String database);

	/**

	 * Returns the database type of the data source. 

	 * @return the database type of the data source. 

	 * <code>null</code> if the bean or the driver class property does not exist or the driver class is unknown.

	 */

	public DatabaseTypeEnum getDatabaseType();

	/**

	 * Tests, if a database connection can be established.

	 * @return true if test was successful, false otherwise

	 * @throws ClassNotFoundException 

	 * @throws SQLException 

	 * @throws Exception 

	 */

	public boolean testConnection() throws ClassNotFoundException, SQLException;

	 /**

     * Executes a query and returns the ResultSet.

     * @return ResultSet for the query.

	 * @throws SQLException 

     */

	public ResultSet executeQuery (String query) throws SQLException;

    /**

     * Executes an update

     * @return return code

     */

	public int executeUpdate (String sqlUpdate) throws SQLException;

	/**

	 * Starts a transaction for the given datasource.

	 */

	public void startTransaction();

	/**

	 * Commits the transaction for the given datasource.

	 * @return

	 * @throws SQLException 

	 */

	public void commitTransaction() throws SQLException;

	/**

	 * Rolls the connection back.

	 * @throws SQLException 

	 */

	public void rollback() throws SQLException;

	/**

	 * Returns the first value of the first row of a result set.<BR>

	 * If no row exists in the result set

	 * <code>null</code> is returned.

	 * 

	 * <strong>Caution</strong> This method opens a connection on first use. Subsequent calls will use the same connection.

	 * Please close the connection when not needed anymore with {@link ICdmDataSource#closeOpenConnections()}

	 * 

	 * @param query

	 * @return

	 * @throws SQLException

	 */

	public Object getSingleValue(String query) throws SQLException;	

	/**

	 * Returns {@link DatabaseMetaData} for <code>this</code> datasource.

	 * 

	 * <br>

	 * <br>

	 * <strong>Caution</strong> This method opens a connection that should be closed

	 * with {@link #closeOpenConnections()}

	 * 

	 * @return

	 */

	public DatabaseMetaData getMetaData();

}