Use of XMLTYPE is bpel

Question

Hi All,
I have a requirement in which I am polling a table through DB Adapter which has xmltype column in it.After polling, I want to enrich the xml type column through some operations in BPEL.But when I look the xmltype column in bpel input variables,it becomes a string.Can anybody suggest how can I get the value of each tag of the xml which is stored in xmltype column.?
I tried usingora:parseEscapedXML() by passing a string which is actually a xml document.I assigned this to a message type variable which adheres to the xml document.But still the values of tags are not getting assigned and I am getting fault.Please let me know if I am doing something wrong.
This is the fault
<bpelFault><faultType>0</faultType><selectionFailure xmlns="http://schemas.xmlsoap.org/ws/2003/03/business-process/"><part name="summary"><summary>empty variable/expression result. The XPath variable or expression /ns3:PO/ns5:PONO is empty at line 112. An attempt to read or copy data referenced or computed by the XPath expression either had invalid data, according to the XML schema, or did not contain certain optional data. Ensure that the variable or expression result named in the error message is not empty. Enable XML schema validation of related variables to ensure the run-time data is valid. </summary></part></selectionFailure></bpelFault>

Answer 1

I had the same problem and found it to be namespace problem. The xmlstring coming in should have a namespace that matches the namespace of the variable or schema it's going into.
Check out this thread.
ora.parseEscapedXML() with empty variable
Since your IDE didn't create the schema for you, you need to create that yourself. There are probably utilities to help with that.
I'm not sure but I think it has to match the namespace of the schema its going into which may not be the same as the namespace of the message. Also when assigning you need to make sure that the level you are assigning to matches the top level that is coming in. Such as <orders> maps to -> <orders>