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Problem with comparison [message #1755014]

Sun, 26 February 2017 12:41

Eclipse User

Hi,

this if condition return false but When I debug "ve.refImmediateComposite()" and "thisModule.aux" both of them return "IN1!<unnamed>". Would any one help me in this regard?

if (ve.refImmediateComposite() = thisModule.aux)

Re: Problem with comparison [message #1755022 is a reply to message #1755014]

Mon, 27 February 2017 00:52

Eclipse User

IN!<unnamed> is just a string representation of model elements without a "name" property. It doesn't imply equality.

Re: Problem with comparison [message #1755053 is a reply to message #1755022]

Mon, 27 February 2017 10:59

Eclipse User

If you put your element as a parameter in debug() (e.g debug(ve.refImmediateComposite())), you will see his id (e.g org.eclipse.emf.ecore.impl.DynamicEObjectImpl@33b8de76...).
"if (ve.refImmediateComposite() = thisModule.aux)" will be equal only if they have the same id.

Re: Problem with comparison [message #1755526 is a reply to message #1755053]

Sat, 04 March 2017 15:36

Eclipse User

Thanks all.

Re: Problem with comparison [message #1755540 is a reply to message #1755526]

Sun, 05 March 2017 06:09

Eclipse User

I have also another question, if I write the below code, I have the error "org.eclipse.m2m.atl.engine.emfvm.VMException: Feature method does not exist on PropertyCallExpression".

helper context MM_ETL!Expression def : collectWithFeatureFollowing() : Boolean =
if ((self.oclIsTypeOf(MM_ETL!PropertyCallExpression) or thisModule.isAHelper(self)) and not self.oclIsKindOf(MM_ETL!FOLMethodCallExpression).oclIsUndefined())
then if (self.method.name = 'collect')

if I change the code to the below code, I have the error "org.eclipse.m2m.atl.engine.emfvm.VMException: java.lang.Boolean does not have properties".

helper context MM_ETL!Expression def : collectWithFeatureFollowing() : Boolean =
if ((self.oclIsTypeOf(MM_ETL!PropertyCallExpression) or thisModule.isAHelper(self)) and not self.oclIsKindOf(MM_ETL!FOLMethodCallExpression).oclIsUndefined())
if (self.oclIsKindOf(MM_ETL!FOLMethodCallExpression).method.name = 'collect')

what can I do to access method?

Re: Problem with comparison [message #1755659 is a reply to message #1755540]

Mon, 06 March 2017 11:19

Eclipse User

It's look like PropertyCallExpression don't have attribute named "method" and yours if don't return any boolean.

You wanted to write something like that?

if ((self.oclIsTypeOf(MM_ETL!PropertyCallExpression) or thisModule.isAHelper(self)) and not self.oclIsKindOf(MM_ETL!FOLMethodCallExpression).oclIsUndefined())
then (self.oclIsKindOf(MM_ETL!FOLMethodCallExpression).method.name = 'collect')
else false endif

Re: Problem with comparison [message #1755701 is a reply to message #1755659]

Mon, 06 March 2017 16:22

Eclipse User

louis andia. wrote on Mon, 06 March 2017 16:19

It's look like PropertyCallExpression don't have attribute named "method" and yours if don't return any boolean.

Yes, "PropertyCallExpression" doesn't have the attribute named "method". I want to navigate from self to "FOLMethodCallExpression" class which has a "method" feature. "FOLMethodCallExpression" is a sub-class of sub-class of self.

louis andia. wrote on Mon, 06 March 2017 16:19

You wanted to write something like that?

if ((self.oclIsTypeOf(MM_ETL!PropertyCallExpression) or thisModule.isAHelper(self)) and not self.oclIsKindOf(MM_ETL!FOLMethodCallExpression).oclIsUndefined())
then (self.oclIsKindOf(MM_ETL!FOLMethodCallExpression).method.name = 'collect')
else false endif

No, the code I write above is a part of my code. It returns boolean value.

[Updated on: Mon, 06 March 2017 16:23] by Moderator

Re: Problem with comparison [message #1755758 is a reply to message #1755701]

Tue, 07 March 2017 10:37

Eclipse User

Ok.

not self.oclIsKindOf(MM_ETL!FOLMethodCallExpression).oclIsUndefined()

I think it will always be true, because self.oclIsKindOf(MM_ETL!FOLMethodCallExpression) should always be true or false so will always be defined.
Replace that with:

self.oclIsKindOf(MM_ETL!FOLMethodCallExpression)

and the first problem must not happen again.

Sorry for my previous answer, i didn't noticed you tried to cast with oclIsKindOf method. This method doesn't do that, it's like oclIsTypeOf but match even if it's a subclass.

Re: Problem with comparison [message #1755771 is a reply to message #1755758]

Tue, 07 March 2017 14:26

Eclipse User

Many thanks for your kind help. my problem was solved.

Re: Problem with comparison [message #1755782 is a reply to message #1755758]

Wed, 08 March 2017 02:12

Eclipse User

Hi,

I have also another question, the below if condition always return false.

if (MM_ETL!TransformationRule -> allInstances() -> exists (l|l.lazy=true and l.source.resolvedType.elementName.oclIsKindOf(MM_Src!EStructuralFeature.allInstances() -> select (s|s.name=a.target.collectAllContainedElements()->last().name)-> collect (s|s.eType)->first())))

I think because the below part of it returns "IN_trg!className"

MM_Src!EStructuralFeature.allInstances() -> select (s|s.name=a.target.collectAllContainedElements()->last().name

and the below code returns "className"

MM_ETL!TransformationRule -> allInstances() -> collect (l|l.source.resolvedType.elementName)

I want if the "className" of second part I show is the same as "className" of the first part or one of its subtypes, the if condition returns true. would you please help me in this regard?

[Updated on: Wed, 08 March 2017 03:14] by Moderator

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