Re: [HAPI-devel] Message Casting Error

[Matias K. <ma...@et...>]

Dear Bryan and Martin,

Thanks for your help!  I'll check out the Terser class and the 
DefaultApplication.

Cheers,

Matias

Tripp, Bryan wrote:

 > Hi Matias,
 > Yes, that's probably it.  As Martin said a few minutes ago, it sounds 
like
 > Terser is your best bet.  It automatically accounts for differences 
between
 > versions.  By the way there are some examples of Terser use in
 > DefaultApplication:
 > 
http://cvs.sourceforge.net/viewcvs.py/hl7api/hapi/ca/uhn/hl7v2/app/DefaultAp
 > plication.java?view=markup
 >
 > ... see makeACK() and fillResponseHeader() for different styles of use.
 > Bryan
 > -----Original Message-----
 > From: Matias Klein
 > To: hl7...@li...
 > Sent: 21/05/2004 10:55 AM
 > Subject: [HAPI-devel] Message Casting Error
 >
 > Hello,
 >
 > I've just started testing HAPI v0.4.1.  I'm trying to cast a Message
 > object to an ADT_A04 object.  Here is my code:
 >
 > public ADT_A04 convertMessage(Message in){
 >     ADT_A04 adt = (ADT_A04) in;
 >     return adt;
 > }
 >
 > When I pass an ADT_A04 message to this function, I get the following
 > error:
 >
 > java.lang.ClassCastException
 >          at com.test.HL7.processors.ADTProcessor.processMes
 > age(ADTProcessor.java:67)
 >          at 
ca.uhn.hl7v2.app.MessageTypeRouter.processMessage(MessageTypeRouter.
 > ava:52)
 >          at
 > ca.uhn.hl7v2.app.Responder.processMessage(Responder.java:159)
 >          at ca.uhn.hl7v2.app.Receiver$Grunt.run(Receiver.java:115)
 >
 > What would cause this considering that the message being passed in is an
 >
 > ADT_A04 message?  Could this be a versioning problem (i.e. the 
message is v2.4 and the ADT_A04 class is from the v2.3.1 model package)?
 >
 > Thanks,
 >
 > Matias
 >
 > ============
 > Matias Klein
 > Ethidium Health Systems
 > 3993 Huntingdon Pike - Suite 108
 > Huntingdon Valley, PA 19006-1927
 > USA
 > Office: (215)938-8630
 > Fax: (866)583-8018
 > http://www.ethidium.com
 >
 >
 >
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