[HAPI-devel] Reading QPD User Parameters

[Josefa J. <jos...@al...>]

Hi,

I am a very newbie in using Hapi and HL7 protocol itself.

By now I have succesfully read several types of messages, segments and 
fields from plain example char Strings.

Now what I want to do is to read the user parameters contained into an 
inbound QBP^Q22^QBP_Q21 example message, given as a String. To be 
honest, I have no idea how to do that... I guess it has something to do 
with Visitor Pattern... wich I barely understand...

The message I am playing with is:

MSH|^~\"|OTHER_IBM_BRIDGE_TLS|IBM|PAT_IDENTITY_X_REF_MGR_MISYS|ALLSCRIPTS|20090226131524-0600||QBP^Q22^QBP_Q21|4384605233932006785|P|2.5
QPD|Q22^FindCandidates^HL7|2846266284165483109045739371027|@PID.3.1^PDQ113XX05~@PID.3.4.1^IHENA~@PID.3.4.2^1.3.6.1.4.1.21367.2009.1.2.300~@PID.3.4.3^ISO
RCP|I|10^RD

And I am trying something like that (very very simple approach):

             InputStream is = new 
ByteArrayInputStream(messageAsString.getBytes("UTF-8"));
             is = new BufferedInputStream(is);
             Hl7InputStreamMessageIterator it = new 
Hl7InputStreamMessageIterator(is);

             while (it.hasNext()) {
                 QBP_Q21 m = (QBP_Q21) it.next();
                 QPD qpd = m.getQPD();
                 Varies v = qpd.getQpd3_UserParametersInsuccessivefields();

                 //AND NOW?? How do I use this "v" object to actually 
get the user parameters?
             }


Well, I hope someone can help me... it can't be that difficult!

Thanks you all in advance and best regards

Josefa Jul