if (!fixedStmt.isValid()) throw new FBSQLException("Corresponding connection is not valid.", FBSQLException.SQL_STATE_CONNECTION_FAILURE_IN_TX);
    protected void prepareFixedStatement(String sql, boolean describeBind)        throws GDSException, SQLException    {        if (fixedStmt == null) {            fixedStmt = c.getAllocatedStatement();        }        c.prepareSQL(            fixedStmt,             escapedProcessing ? c.nativeSQL(sql) : sql,             describeBind);    }