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

Tue, 27 July 2010 07:02

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 07:45

Christian Dietrich
Messages: 4421
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

[Updated on: Tue, 27 July 2010 07:46]

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Re: [xpand] polymorphism with templates spread over multiple files [message #549625 is a reply to message #549604]

Tue, 27 July 2010 08:01

Marten Sijtema
Messages: 67
Registered: November 2009

Member

Hm, that solution also crossed my mind. Ill go for that, but don't think it is elegant Smile

Ideally the definitions from the same package should be visible...

My company: Sytematic, building business software from models.

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