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[xpand] polymorphism with templates spread over multiple files [message #549604]

Tue, 27 July 2010 11:02

Marten Sijtema

Messages: 67
Registered: November 2009

Member

Hello,

In my metamodel i have an element 'View' and some subtypes viewA and viewB. ViewB and A are in different xpt files, in same namespace. I would like to expand these definitions polymorphically:

<expand v foreach View>

Ie. When an element is of type viewA , the viewA define block is expanded, etc.

This works when all the define blocks are in the same file. I want to put them in separate files, but then it doemst work, ie. always the supertype is called. How should i do this?

My company: Sytematic, building business software from models.

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Re: [xpand] polymorphism with templates spread over multiple files [message #549620 is a reply to message #549604]

Tue, 27 July 2010 11:45

Christian Dietrich

Messages: 14062
Registered: July 2009

Senior Member

Hi,

hi, i fear the is no nice way but
the easiest way would be to add some dispatcher-defines to the template

<<DEFINE main FOR model>>
    <<EXPAND main FOEACH elements>>
<<ENDDEFINE>>

<<DEFINE main FOR A>>
   <<EXPAND fileA::main FOR this>>
<<ENDDEFINE>>

<<DEFINE main FOR B>>
    <<EXPAND fileB::main FOR this>>
<<ENDDEFINE>>

<<DEFINE main FOR C>>
    <<EXPAND fileC::main FOR this>>
<<ENDDEFINE>>

Regards
Christian

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[Updated on: Tue, 27 July 2010 11:46]

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