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Forum: ATL

Topic: toString helper

toString helper [message #1059487]

Sun, 19 May 2013 13:04

Basma Moukhtar
Messages: 21
Registered: June 2010

Junior Member

Dears,
I have a helper that's defined as this:

helper context MyPackage!MyClass def: toString() : String = 'Self To String;'

But I need to set a boolean attribute in self (MyPackage!MyClass) to true when the "toString" function is called.
I can't write self.myAttibute=true because my helper returns string.

How can I do this?

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Topic: XML2XML

XML2XML [message #1059470]

Sun, 19 May 2013 06:23

samar sousou
Messages: 42
Registered: March 2013

Member

Hi every body,
I have a problem when i want to transform an XML to another XML in ATL.
When i want to translate a root vers the other root, i have this error "Cannot set feature children to value [org.eclipse.emf.ecore.impl.DynamicEObjectImpl@106c28e (eClass: org.eclipse.emf.ecore.impl.EClassImpl@45a13b (name: Attribute) (instanceClassName: null) (abstract: false, interface: false)), org.eclipse.emf.ecore.impl.DynamicEObjectImpl@22610b (eClass: org.eclipse.emf.ecore.impl.EClassImpl@15c4245 (name: Text) (instanceClassName: null) (abstract: false, interface: false)), org.eclipse.emf.ecore.impl.DynamicEObjectImpl@cf16e8 (eClass: org.eclipse.emf.ecore.impl.EClassImpl@e25e24 (name: Element) (instanceClassName: null) (abstract: false, interface: false)), org.eclipse.emf.ecore.impl.DynamicEObjectImpl@1112380 (eClass: org.eclipse.emf.ecore.impl.EClassImpl@15c4245 (name: Text) (instanceClassName: null) (abstract: false, interface: false)), org.eclipse.emf.ecore.impl.DynamicEObjectImpl@122d2ad (eClass: org.eclipse.emf.ecore.impl.EClassImpl@e25e24 (name: Element) (instanceClassName: null) (abstract: false, interface: false)), org.eclipse.emf.ecore.impl.DynamicEObjectImpl@31d83c (eClass: org.eclipse.emf.ecore.impl.EClassImpl@15c4245 (name: Text) (instanceClassName: null) (abstract: false, interface: false)), org.eclipse.emf.ecore.impl.DynamicEObjectImpl@1a71ca6 (eClass: org.eclipse.emf.ecore.impl.EClassImpl@e25e24 (name: Element) (instanceClassName: null) (abstract: false, interface: false)), org.eclipse.emf.ecore.impl.DynamicEObjectImpl@6b5372 (eClass: org.eclipse.emf.ecore.impl.EClassImpl@15c4245 (name: Text) (instanceClassName: null) (abstract: false, interface: false))], inter-model references are forbidden. Configure launching options to allow them."

I didn't understand this error.

So, i need your help and this is my Root rule.
rule ROOT {
from
i : XMLS!Root
to
o: XMLC!Root (
name <- 'donneesMUDU',
startLine <- i.startLine,
startColumn <- i.startColumn,
endLine <- i.endLine,
endColumn <- i.endColumn,
children <- i.children

)
}
what should i do!

Thank you,
Samar

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Topic: Resolved: Uml2Uml: dynamic packagedElement Creation

Resolved: Uml2Uml: dynamic packagedElement Creation [message #1059003]

Thu, 16 May 2013 03:49

Stefan L
Messages: 5
Registered: July 2012

Junior Member

Hi,

I'm desperately trying to generate packagedElements in my target model via my model rule for each class elements of my source model.

A simple code I found works with static code:

rule Model {
    from s : UML2!"uml::Model"
    to t : UML2!"uml::Model" (
    	name <- s.name,
		packagedElement <- OrderedSet {services, information, processes}
    	),
    	services: UML2!"uml::Class" (
    		name <- 'asdf'
    	),
	information: UML2!"uml::Class" (
    		name <- 'information view'
    	),
	processes: UML2!"uml::Class" (
    		name <- 'services view'
    	)
}

But actually I want to do something like this, to generate multiple classes as packagedElements within the model scope:

rule Model {
    from s : UML2!"uml::Model"
    to t : UML2!"uml::Model" (
    	name <- s.name,
		packagedElement <- OrderedSet {UML2!"uml::Class".allInstances()}
    	)
}

This gives me the following error:

Exception in thread "main" org.eclipse.m2m.atl.emftvm.util.VMException: java.lang.ClassCastException: org.eclipse.m2m.atl.emftvm.util.LazyList$UnionList cannot be cast to org.eclipse.emf.ecore.EObject
at rule Model@applier#12(../AtlTransform/test/test.atl#[65:3-65:70])
	Local variables: [__trace__: TRACE!TraceLink = 25ea22df:TRACE!TraceLink, s: UML2!uml::Model = model:UML2!Model, t: UML2!uml::Model = model:UML2!Model]
at static EMFTVM!ExecEnv::main() : Object(../AtlTransform/test/test.atl)
	Local variables: []
	at org.eclipse.m2m.atl.emftvm.impl.CodeBlockImpl.internalExecute(CodeBlockImpl.java:989)
...

Whereas the static try works just fine. I don't know how i should interpret this EObject thingy.

Nevertheless, I would appreciate some hint/help here. Thanks.

Stefan

EDIT: ohmygod, now i actually have seen the error Very Happy

rule Model {
    from s : UML2!"uml::Model"
    to t : UML2!"uml::Model" (
    	name <- s.name,
		packagedElement <- UML2!"uml::Class".allInstances()
    	)
}

I just removed the OrderedSet.

[Updated on: Thu, 16 May 2013 03:55]

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Current Time: Sun May 19 19:48:45 EDT 2013