RE: [HAPI-devel] How to get null in the generated message?

[Tripp, B. <Bry...@uh...>]

Hi Keith,

It should be this: 

value.setValue("\"\"");

... (i.e. a sting with two double-quotes in it).  This differentiates it
from an empty value which as you know has a different meaning in HL7.  If
that doesn't work please let me know.  

Bryan 

> -----Original Message-----
> From: Ackley, Keith A [mailto:kei...@ed...]
> Sent: October 20, 2003 2:35 PM
> To: 'hl7...@li...'
> Subject: [HAPI-devel] How to get null in the generated message?
> 
> 
> Hi,
> 
> I'm trying to send a null value, which should be transmitted 
> as two double
> quote marks (""). I have tried calling setValue with null and 
> with "". It
> does not appear to work for any type. For example, I have tried
> 
> ca.uhn.hl7v2.model.v24.datatype.NM value = new
> ca.uhn.hl7v2.model.v24.datatype.NM()
> value.setValue(null);
> 
> And 
> 
> ca.uhn.hl7v2.model.v24.datatype.NM value = new
> ca.uhn.hl7v2.model.v24.datatype.NM()
> value.setValue("");
> 
> Both approaches result in the value being omitted from the generated
> message. How do I get the parser to produce ""?
> 
> Thanks,
> Keith
> 
> 
> 
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