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[ETL] Method 'add' not found [message #1076686]

Wed, 31 July 2013 18:44

kwaku sandy

Messages: 12
Registered: July 2013

Junior Member

Given the attached target metamodel(CHTS), running the following ETL rule gives the error message:
Method 'add' not found

index.php/fa/15796/0/

rule Statemachine2System
	transform s : FORML!Statemachine
	to cs : CHTS!System, h: CHTS!Hts {
		h.name = s.name;
		cs.hts.add(h);
	}

Please what am i doing wrong. I want to transform each Statemachine (s) in my source to a System (cs) in my target, and create an Hts(h) which is contained in the created System (i.e add the created Hts, h, to the relation, hts).
I'm still a beginner to ETL so forgive me if i'm doing something silly here.
Thanks

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Re: [ETL] Method 'add' not found [message #1076690 is a reply to message #1076686]

Wed, 31 July 2013 18:47

Dimitris Kolovos

Messages: 2163
Registered: July 2009
Location: York, UK

Senior Member

Hi,

No problem. hts is a single-valued reference so your add() statement should be cs.hts = h instead.

Cheers,
Dimitris

[Updated on: Wed, 31 July 2013 18:47]

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Re: [ETL] Method 'add' not found [message #1076701 is a reply to message #1076690]

Wed, 31 July 2013 19:04

kwaku sandy

Messages: 12
Registered: July 2013

Junior Member

Thanks a lot Dimitris, you have no idea how long i've spent on this issue. Have been sitting here whole day trying to figure out what i'm doing wrong. I didn't want to just post any small problem i find on the forum without figuring things out myself first.
Aside the Epsilon book is there any other source i can read on ETL with examples?

Thanks again. Really appreciate all the work you're doing.
Sandy

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