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variable length message set

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ShaileshBajaj

Posted: Mon Jan 15, 2007 11:45 pm Post subject: variable length message set

Newbie

Joined: 04 Jul 2006
Posts: 6

Hi

I need to model a message set and message flow(s) (WBI v6) to handle variable length message.
Basically there is a header segment and (1..n) Data Segment, here n has no upper value defined.
Each Seg length is 360 Characters.
The header segment has multiple fields of fixed length.
So also the Data segment has multiple fields of fixed length.
The structure of the Data Segment remains the same for all Data segments.
The Header and Data seg have different structure and fields.

Do we have any ideas to handle this.

Thanks in advance.

gregop

Posted: Tue Jan 16, 2007 12:22 am Post subject:

Voyager

Joined: 24 Nov 2006
Posts: 81

You'll need to model this as TDS (as I think CWF needs to know the number of repeats either by value or reference to another element).

Create a complex type for the header and another complex type for the detail with fixed length elements.

Create a message, add 2 elements one with type=header and the other with type=detail. Max occurs for detail = -1.

kimbert

Posted: Tue Jan 16, 2007 1:21 am Post subject:

Jedi Council

Joined: 29 Jul 2003
Posts: 5542
Location: Southampton

gregop is correct. Just a small clarification:

Quote:

I think CWF needs to know the number of repeats either by value or reference to another element

That used to be true in v5. In v6, both TDS and CWF can handle structures which repeat without limit. CWF can only do it when the repeating structure is at the end of the bitstream. TDS can handle a repeating structure in the middle of a message, as long as the strucure can be identified in some way ( by a tag or a special delimiter or a data pattern ).

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