DataLoader loader = new DataLoader(ssn);
DataLoader loader = new DataLoader(m_ssn);
    private void setup() throws SQLException {        if (m_root == null) { init(); }        try {            Schema.load(m_root, m_conn);        } catch (SQLException e) {            throw new IllegalStateException(e.getMessage());        }        ConnectionSource src = new ConnectionSource() {            public Connection acquire() { return m_conn; }            public void release(Connection conn) {}        };        Engine engine = new RDBMSEngine(src, new PostgresWriter());        Session ssn = new Session(m_root, engine, new QuerySource());        DataLoader loader = new DataLoader(ssn);        XML.parseResource("com/redhat/persistence/oql/test.dat", loader);        XML.parseResource("com/redhat/persistence/oql/parties.dat", loader);        ssn.flush();    }