<?vsp 
--  
--  $Id$
--  
--  This file is part of the OpenLink Software Virtuoso Open-Source (VOS)
--  project.
--  
--  Copyright (C) 1998-2018 OpenLink Software
--  
--  This project is free software; you can redistribute it and/or modify it
--  under the terms of the GNU General Public License as published by the
--  Free Software Foundation; only version 2 of the License, dated June 1991.
--  
--  This program is distributed in the hope that it will be useful, but
--  WITHOUT ANY WARRANTY; without even the implied warranty of
--  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
--  General Public License for more details.
--  
--  You should have received a copy of the GNU General Public License along
--  with this program; if not, write to the Free Software Foundation, Inc.,
--  51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
--  
--  
?>
<html>
  <head>
    <link rel="stylesheet" type="text/css" href="../demo.css">
    <title>Calling COM Interface methods</title>
  </head>
  <body>
<h2>Calling COM interface methods</h2>
<?vsp
  declare err_sqlstate, err_msg, err_sqlstate1, err_msg1 varchar;

  err_sqlstate := '00000';
  err_msg := 'none';
  err_sqlstate1 := '00000';
  err_msg1 := 'none';

  declare _com_inst VirtCOMServer_CVirtCOMObjectClass;
  declare _balance double precision;

  _balance := 0.0;

  commit work;
  {
     declare exit handler for sqlstate '*'
       {
         err_sqlstate := __SQL_STATE;
         err_msg := __SQL_MESSAGE;
       };

     -- this is where the COM object is called

     _com_inst := new VirtCOMServer_CVirtCOMObjectClass ();


     _com_inst.Clear ();

     _com_inst.AddAmount (12.20);
     _com_inst.AddAmount (10);

     _balance := _com_inst.get_balance ();

     -- end of the COM object interaction
  }

  exec ('commit work', err_sqlstate1, err_msg1);

  -- sending the results to the client
  if ('00000' <> err_sqlstate)
    {
?>
      <TABLE CLASS="genlist" BORDER="0" CELLPADDING="0">
      <TR>
        <TD CLASS="errorhead" COLSPAN="2">Execution Error</TD>
      </TR>
      <TR>
        <TD CLASS="genlisthead">SQL State</TD>
        <TD CLASS="gendata"><?= err_sqlstate ?></TD>
      </TR>
      <TR>
        <TD CLASS="genlisthead">Error Message</TD>
        <TD CLASS="gendata"><?= err_msg ?></TD>
      </TR>
<?vsp
      if ('00000' <> err_sqlstate1)
        {
?>
          <TR>
            <TD CLASS="genlisthead">Txn SQL State</TD>
            <TD CLASS="gendata"><?= err_sqlstate1 ?></TD>
          </TR>
          <TR>
            <TD CLASS="genlisthead">Txn Error Message</TD>
            <TD CLASS="gendata"><?= err_msg1 ?></TD>
          </TR>
<?vsp
        } ?>
      </TABLE>
<?vsp
    }
  else
    {
?>
      <P>the result is <b><?= _balance ?></b></P>
<?vsp
    }
?>
</body>
</html>
