Hi JOnathan,
1. HL7 Message structures are used for grouping messages with the same
internal structure (i.e. groups and segments). HAPI classes model message
structures rather than messages. As ADT_A08 is defined to have a message
structure called ADT_A01, the instantiated HAPI class is ADT_A01.
2. Segments can be nested in groups. The problem is that groups are not
visible in pipe-encoded messages, so one has to look at the HL7
specification or simply at the instantiated message structure class -
ca.uhn.hl7v2.model.v25.message.ADT_A01 contains a group ADT_A01_INSURANCE
which contains the IN1 segments you are looking for.
3. For nested search of segments, have a look at
ca.uhn.hl7v2.util.SegmentFinder or one of the Iterator classes in the same
package.
cheers
Christian
Jonathan Bartels-2 wrote:
>
> I have an application that is focused on processing messages segment by
> segment, it is largely agnostic to the type of message. For example if we
> get a message with an IN1 segment, the application will capture insurance
> data.
>
>
>
> I am trying to do this with:
>
> protected int getSegmentCount(String segment) {
>
> try {
>
> return getMessage().getAll(segment).length;
>
> } catch (HL7Exception e) {
>
> log.warning("Found no segments for:" + segment, e);
>
> return 0;
>
> }
>
> }
>
>
>
> However if I send an ADT_A08 message I get:
>
> ca.uhn.hl7v2.HL7Exception: The structure IN1 does not exist in the group
> ca.uhn.hl7v2.model.v25.message.ADT_A01
>
> at
> ca.uhn.hl7v2.model.AbstractGroup.getAll(AbstractGroup.java:335)
>
>
>
> This is odd for two reasons, it’s not an ADT_A01 and despite its message
> type this particular sample has two IN1 segments.
>
>
>
> Is there a better way to count the number of segments in a message?
>
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