private DataSource() {
		// drop the table if it exists
		try {
			Statement stmt = this.getStatement();
			stmt.executeUpdate("drop table event if exists");
			stmt.executeUpdate("create table event (evtid VARCHAR(37) NOT NULL PRIMARY KEY, name VARCHAR(100), priority INTEGER, evtdate TIMESTAMP)");
			stmt.close();
		} catch (SQLException e) {
			e.printStackTrace();
		} finally {
			this.close();
		}
	}