Re: [HAPI-devel] Insert segment repetition

[Christian O. <chr...@gm...>]

hi,

do you rely on working on an untyped message (i.e. AbstractMessage)? In
this case, adding a segment (repetition) can be ambiguous as it is not
clear where in the message the segment should actually be added. Messages
of different types and versions usually have a dedicated structure
definition, which can change even for the same message type in different
versions.

My experience is that when you create or modify a message using the HAPI
API, you should work on typed messages (like
ca.uhn.hl7v2.model.v25.message.ADT_A01). And here the API provides you with
methods like insertNK1(int rep):NK1.

cheers
Christian



2013/10/31 Andrew Bowden <And...@rc...>

> Hi all,****
>
> ** **
>
> What  is the best way to insert a new segment into an existing message.  I
> need to add a repeating NK1 to transform an existing message for
> compliance, however whenever I try to insert a new NK1 segment using a
> terser, the code throws an exception.  I can avoid this by setting the
> first NK1 again, however this doesn’t feel like the best way to approach
> the problem.  I would be interested in any thoughts as to the best way to
> approach the problem.****
>
> ** **
>
> <code>****
>
> private AbstractMessage msg;****
>
> public constructor(rawMsg){****
>
>                 msg = (AbstractMessage)parser.parse(rawMsg);****
>
>                 Terser t = new Terser(msg);****
>
>                 ****
>
>                 hapiTerser.set("/.NK1(2)-1-1", "2");****
>
>                 // throws HL7 Exception - ca.uhn.hl7v2.HL7Exception: Can't
> return repetition #2 of NK1 - there are currently only 1 repetitions so
> rep# must be between 0 and 1****
>
> }****
>
> </code>****
>
> ** **
>
> I have found that if I: hapiTerser.set(“/.NK1-1-1”, “1”);, the problem
> appears to go away, so I can either iterate over each item or deepcopy to
> get them across, however this feels like a hack to get this working.****
>
> ** **
>
> I appreciate you taking the time to look at this problem and welcome any
> suggestion.****
>
> ** **
>
> Andrew****
>
>
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