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MRM Choice clarification

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MrSmith

Posted: Mon Jun 09, 2008 2:21 am Post subject: MRM Choice clarification

Master

Joined: 20 Mar 2008
Posts: 215

Proposed objective: Incoming MRM message conatins element for say curency. From the currency value if the currency is say "USD" then I want the choice group field that is a decimal of precision 15,2 to be used, if the currency is "YEN" I want to use the choice field from the group with precision 15,6 to be used or if any other currency then use choice decimal field with precision 15,4. I read th manual and it says this

Quote:

Choice
A choice cannot be resolved purely from the data. The receiving program must interpret the data and decide which option of the choice the message instance contains. This process is known as unresolved choice handling. The first reference in the application to any one of the choice elements resolves the choice to the option containing that element.

which implies quite strongly that the above objective is not achievable but have I read this correctly? Can i only change the precision from withing the ESQL (TBH was just being lazy to see if the MRM would do it for me)

MrSmith

Posted: Mon Jun 09, 2008 2:23 am Post subject:

Master

Joined: 20 Mar 2008
Posts: 215

FYI Version 5 on Windows + all the latest pacs

kimbert

Posted: Mon Jun 09, 2008 5:01 am Post subject:

Jedi Council

Joined: 29 Jul 2003
Posts: 5542
Location: Southampton

I presume you are using XML, since you refer to an attribute. XML Schema cannot resolve a choice based on an attribute value ( so this is not really an MRM restriction ). You have 2 options:
- Write some custom ESQL/Java to validate the message tree
- Change the input XML so that the name of the tag differs depending on the currency.

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