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[ATL] __xmiID__ values on output elements change after executing the transformation [message #782177]

Mon, 23 January 2012 09:57

Alvaro Jimenez Rielo

Messages: 41
Registered: July 2009
Location: Rey Juan Carlos Universit...

Member

Hi everyone,

I have an ATL transformation which generates two output models (mB and mC) from an input model (mA). These models are conformed to metamodels MB, MC and MA, respectively.
(I realize that the problem doesn't appears when MA, MB and MC are directly conformed to Ecore Metamodel.)

Since I must save the ids of B's elements into model C, I have a rule like this:

rule example {
	from 
		element_input: A!Element
	to
		element_out1: B!Element(
			name <- element_input.name
		),
		element_out2: C!Element(
			name <- element_input.name,
			id <- element_out1.__xmiID__
		)
}

I have checked that during the transformation (even using a endpoint rule), the ids of output model B returned by __xmiID__ are like "/0","/1" ... "/N".
However, after executing the transformation, these ids are like "/0/@element.0", "/0/@element.1"..."/N/@element.N". Therefore, after executing the transformation,
the ids I have in model C are not equal than ids I have in model B.

Could someone help me to solve this problem to generate the ids of output elements?

I use the following versions:
ATL: 3.2.0
EMF: 2.6.1
Eclipse: 3.6.1

Thanks in advance,
Álvaro

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