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Eclipse OCL and UML State Machines [message #672518]

Sat, 21 May 2011 14:31

miguelafr

Messages: 9
Registered: April 2011

Junior Member

Hello,

Apart from UML class diagrams, is it possible to parse OCL contraints (transitions, guards and actions) from a UML State Machine associated to a Java class with Eclipse OCL?

Thank you very much in advanced

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Re: Eclipse OCL and UML State Machines [message #672520 is a reply to message #672518]

Sat, 21 May 2011 14:58

Ed Willink

Messages: 7655
Registered: July 2009

Senior Member

Hi

In principle, yes; and this could apply in practice when using the Java
API from Europa onwards.

In practice, there has been significant redevelopment to exploit the
Xtext editing capabilities. State Machines are UML, for which last
minute support has been added for Indigo by the simple expedient of a
UML2Ecore conversion. I therefore doubt that it will work when using an
interactive 'API'. I certainly haven't even exercised it.

If the UML2Ecore conversion happens to convert state machines to
classes, then it might just happen to work anyway.

I'm afraid that you may need to wait for Juno milestone releases to see
full interactive UML support.

Regards

Ed Willink

On 21/05/2011 15:31, miguelafr wrote:
> Hello,
>
> Apart from UML class diagrams, is it possible to parse OCL contraints
> (transitions, guards and actions) from a UML State Machine associated
> to a Java class with Eclipse OCL?
>
> Thank you very much in advanced

Report message to a moderator

Re: Eclipse OCL and UML State Machines [message #673820 is a reply to message #672520]

Tue, 24 May 2011 20:40

miguelafr

Messages: 9
Registered: April 2011

Junior Member

Thank you Edward,

With the current Eclipse release, should I use the UML2 component (http://www.eclipse.org/modeling/mdt/downloads/?project=uml2) or the OCL component (http://www.eclipse.org/modeling/mdt/downloads/?project=ocl) to parse a UML state chart?

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Re: Eclipse OCL and UML State Machines [message #673824 is a reply to message #673820]

Tue, 24 May 2011 20:46

Ed Willink

Messages: 7655
Registered: July 2009

Senior Member

Hi

I'm not clear what you mean by parse a UML state chart.

The UML model will be a model so no parsing is required.

The embedded OCL may be unparsed text, for which you will need to use
the OCL parser.

Regards

Ed Willink

On 24/05/2011 21:40, miguelafr wrote:
> Thank you Edward,
>
> With the current Eclipse release, should I use the UML2 component
> (http://www.eclipse.org/modeling/mdt/downloads/?project=uml2) or the
> OCL component
> (http://www.eclipse.org/modeling/mdt/downloads/?project=ocl) to parse
> a UML state chart?

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Re: Eclipse OCL and UML State Machines [message #674090 is a reply to message #673824]

Wed, 25 May 2011 19:46

miguelafr

Messages: 9
Registered: April 2011

Junior Member

I am refering to use a Java library which allows to transform a UML state machine (.uml file) into Java objects, that can be used for different purposes.

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Re: Eclipse OCL and UML State Machines [message #674109 is a reply to message #674090]

Wed, 25 May 2011 20:43

Ed Willink

Messages: 7655
Registered: July 2009

Senior Member

Hi

Ok. It seems like you will want to use the OCL Java API to at least
check your OCL as you transform the UML states.

Today use of OCL at run time probably requires you put the OCL strings
into you Java code, and do a first time compile
to ASTs before you use the OCL as guards and transitions. This is what
EMF's genmodel does for OCL embedded in Ecore.

After Indigo we plan to do direct Java generation so you should be able
to invoke Java subroutines that do the states and transitions.
This has been added to https://bugs.eclipse.org/bugs/show_bug.cgi?id=279638.

Regards

Ed Willink

On 25/05/2011 20:46, miguelafr wrote:
> I am refering to use a Java library which allows to transform a UML
> state machine (.uml file) into Java objects, that can be used for
> different purposes.

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