001/*
002 * HA-JDBC: High-Availability JDBC
003 * Copyright (c) 2004-2007 Paul Ferraro
004 * 
005 * This library is free software; you can redistribute it and/or modify it 
006 * under the terms of the GNU Lesser General Public License as published by the 
007 * Free Software Foundation; either version 2.1 of the License, or (at your 
008 * option) any later version.
009 * 
010 * This library is distributed in the hope that it will be useful, but WITHOUT
011 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 
012 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License 
013 * for more details.
014 * 
015 * You should have received a copy of the GNU Lesser General Public License
016 * along with this library; if not, write to the Free Software Foundation, 
017 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
018 * 
019 * Contact: ferraro@users.sourceforge.net
020 */
021package net.sf.hajdbc.cache;
022
023import java.sql.Connection;
024import java.sql.SQLException;
025
026import net.sf.hajdbc.DatabaseProperties;
027import net.sf.hajdbc.Dialect;
028
029/**
030 * DatabaseMetaDataCache implementation that does not cache data.
031 * To be used when memory usage is more of a concern than performance.
032 * 
033 * @author Paul Ferraro
034 * @since 2.0
035 */
036public class SimpleDatabaseMetaDataCache extends AbstractDatabaseMetaDataCache
037{
038        public SimpleDatabaseMetaDataCache(Dialect dialect)
039        {
040                super(dialect);
041        }
042        
043        /**
044         * @see net.sf.hajdbc.DatabaseMetaDataCache#flush()
045         */
046        @Override
047        public void flush()
048        {
049                // Nothing to flush
050        }
051
052        /**
053         * @see net.sf.hajdbc.DatabaseMetaDataCache#getDatabaseProperties(java.sql.Connection)
054         */
055        @Override
056        public DatabaseProperties getDatabaseProperties(Connection connection) throws SQLException
057        {
058                return new SimpleDatabaseProperties(connection.getMetaData(), this.factory, this.dialect);
059        }
060}