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OCL Query and Liflines [message #496515]

Tue, 10 November 2009 07:09

No real name
Messages: 1
Registered: November 2009

Junior Member

Hello

I try to create a query but it s refused by the parser and I dont know why

Here ist de code


oclexp = "(self.getRepresents())";
			EObjectCondition  condition = new OCLConstraintCondition(oclexp, UMLPackage.Literals.LIFELINE);

			Set queryresult = Collections.EMPTY_SET;
			try {
				queryresult = UMLModeler.getQueryHelper().executeQuery(model, condition, new NullProgressMonitor());
			} catch (InterruptedException e) {
				//do not care
			}

It states that the Method getRepresents does not exist altough if i look up lifeline in the api there is of course this function

Thanks for help!

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Re: OCL Query and Liflines [message #496953 is a reply to message #496515]

Wed, 11 November 2009 15:31

Ed Willink
Messages: 3151
Registered: July 2009

Senior Member

Hi Alexander

OCL supports use of the specifications of model elements rather than
their implementation.

Lifeline has a 'represents' property so you probably want to use
'self.represents'.

Regards

Ed Willink

alexander.kabanov@gmx.de wrote:
> Hello
>
> I try to create a query but it s refused by the parser and I dont know
> why
>
> Here ist de code
>
>
> oclexp = "(self.getRepresents())";
> EObjectCondition condition = new
> OCLConstraintCondition(oclexp, UMLPackage.Literals.LIFELINE);
>
> Set queryresult = Collections.EMPTY_SET;
> try {
> queryresult =
> UMLModeler.getQueryHelper().executeQuery(model, condition, new
> NullProgressMonitor());
> } catch (InterruptedException e) {
> //do not care
> }
>
>
>
> It states that the Method getRepresents does not exist altough if i
> look up lifeline in the api there is of course this function
>
> Thanks for help!
>

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