Forms 10g crashes on XMLType.createXML()

Question

Hello,
I'm using Forms 10g services for calling a web service, I'm using standard soap request / respond function :
function myfun() returns varchar2 is
  soap_request varchar2(30000);
  soap_respond varchar2(30000);
  http_req utl_http.req;
  http_resp utl_http.resp;
  resp XMLType;
begin
soap_request:='<?xml version="1.0" encoding="UTF-8"?><SOAP-ENV:Envelope
xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsi="http://www.w3.org/1999/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/1999/XMLSchema">
http_req:= utl_http.begin_request (url, 'POST', 'HTTP/1.1');
utl_http.set_header(http_req, 'Content-Type', 'text/xml');
utl_http.set_header(http_req, 'Content-Length', length(soap_request));
utl_http.set_header(http_req, 'SOAPAction','');
utl_http.write_text(http_req, soap_request);
http_resp:= utl_http.get_response(http_req);
utl_http.read_text(http_resp, soap_respond);
utl_http.end_response(http_resp);
resp:= XMLType.createXML(soap_respond);
resp:= resp.extract('/soap:Envelope/soap:Body/child::node()', 'xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"');
resp:=resp.extract('ns1:MyResponse/MyReturn/text()','xmlns:ns1="urn:wslice_vstv"');
return resp.getClobVal();
end;soap_respond looks like this:
<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns1="urn:wslice_vstv" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/">
<SOAP-ENV:Body>
<ns1:MyResponse>
<MyReturn xsi:type="xsd:string">testno# testname# testname2# testname3# testname4# </MyReturn>
</ns1:MyResponse>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>Forms crashes on resp:= XMLType.createXML(soap_respond) with error:
FRM-92101: There was a failure in the Forms Server during startup. This could happen due to invalid configuration.
Please look into the web-server log file for details.
Details...
Java Exception:
oracle.forms.net.ConnectionException: Forms session <92> abourted: unable to communicate with runtime process.
at oracle.forms.net.ConnectionException.createConnectionException(Unknown Source)
at oracle.forms.net.HTTPNStream.getResponse(Unknown Source)
at oracle.forms.net.HTTPNStream.doFlush(Unknown Source)
at oracle.forms.net.HTTPNStream.flush(Unknown Source)
at java.io.DataOutputStream.flush(Unknown Source)
at oracle.forms.net.StreamMessageWriter.run(Unknown Source)
Does anyone have any idea why this happens? There is no xmlparse error or something similar, just what I wrote above.
Thanks,
Jelena

Answer 1

Hello,
1.) You missed out important informations like database and forms versions
2.) where did you write this? dbms_output.put_line will not display anything in forms (unless you get the lines you put on the buffer back with get_lines which is kind of useless in your case)
3.) You might want to read all responses; here:
Jelena Stankov wrote:
"Forms is an old product and does not support all the new PL/SQL database types. If you can't see the datatype in the list displayed for 'Data Type' for a form's item then you most probably won't be able to use it in a form." (http://www.orafaq.com/forum/t/128146/2/)
is the solution to your problem.
4.) this
cursor cursor_xml (p_id in varchar2)
  is select * from MY_TABLE where id=p_id for update;
  rec cursor_xml%rowtype;is a bad idea. using %rowtype and select * is a real bad coding practice and will lead to unexpected behaviour when you do changes to the underlying table. In fact why do you want to do this anyway? You take some informations out of your table, create an xmltype of it and put it back into the table? What happens when you do changes to your data? You will have to do this again (probably in a database trigger <sigh>)...
Why not simply:
SQL> select level, xmltype('<company>'||level||'</company>') from dual connect by level < 20;
     LEVEL|XMLTYPE('<COMPANY>'||LEVEL||'</COMPANY>')
----------|---------------------------------------------------------------------------------------------------------------
         1|<company>1</company>
         2|<company>2</company>
         3|<company>3</company>
         4|<company>4</company>
         5|<company>5</company>
         6|<company>6</company>
         7|<company>7</company>
         8|<company>8</company>
         9|<company>9</company>
        10|<company>10</company>
        11|<company>11</company>
        12|<company>12</company>
        13|<company>13</company>
        14|<company>14</company>
        15|<company>15</company>
        16|<company>16</company>
        17|<company>17</company>
        18|<company>18</company>
        19|<company>19</company>
19 rows selected.create a view upon that end never bother again with updating your xmltype column?
cheers