Oops, looks like Christian beat me to it. :)
James
On Wed, Jul 3, 2013 at 7:41 AM, James Agnew <ja...@jamesagnew.ca> wrote:
> Hi Ian,
>
> The cleaner alternative, which was just added in HAPI 2.1 oddly enough is
> as follows:
>
> if (!hl7Message.getINSURANCE(0).getIN1().isEmpty()) {
> .. blah ..
> }
>
> There is also the somewhat uglier alternative which would work in older
> releases:
>
> if (!hl7Message.getINSURANCE(0).getAll("IN1").length == 0) {
> .. blah ..
> }
>
> It's worth noting that these two techniques are not 100% semantically
> equivalent. In the case of a message containing an empty IN1 segment (in
> other words, you parsed a message that contained an IN1 segment, but that
> segment had no field values), the second "blah" would get triggered but the
> first one wouldn't.
>
> Cheers,
> James
>
>
> On Tue, Jul 2, 2013 at 7:51 PM, Ian Vowles
> <ian_vow...@health.qld.gov.au>wrote:
>
>> When building a transform of an HL7 message where some segment is
>> optional, but if it is present lots of fields are to be checked and
>> transformed, I like to check for existence of the segment first.
>>
>> Using HAPI I code the check like this:
>>
>> if
>> (!("IN1".equals(hl7Message.getINSURANCE(0).getIN1().encode()))) {
>> hl7In1 = hl7Message.getINSURANCE(0).getIN1();
>> .
>> .
>> Do the get/set/change of various fields of the hl7In1
>> .
>> .
>> }
>>
>> Is this a good way to check if it's there? It has never looked quite
>> right to me, but I haven't figured out another way.
>>
>> Thanks
>> Ian
>>
>>
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