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Query to return Classes that use a given Enumeration [message #1753303]

Fri, 03 February 2017 15:42

James Clark

Messages: 15
Registered: December 2016

Junior Member

I have a UML model developed with Rational Software Architect v9.1.2. I have a BIRT report in which I would like to return all Classes in a diagram which have one or more attributes typed as a given Enumeration. I'm thinking the use of OCL might be the best bet, but my knowledge of OCL is not good enough to solve my problem. I'm using this provided API call within a BIRT data set row query:

Collection<EObject> oclQuery (xpath, boolean_ocl_expression)

This function takes an XPath expression and a Boolean-valued OCL query expression, and returns the subset of elements from the XPath expression for which the OCL query returns true.

The two parameters provided to the BIRT data set row query are:
$diagramURI - the URI of the UML class diagram.
$enumerationURI - the URI of the Enumeration that I'd like to know which Classes in the diagram have an attribute typed as.
I have partially completed the query (I know the XPath to the Classes in the diagram), but I'm struggling with the OCL part of oclQuery call:

oclQuery(resolveURI($diagramURI)/children[getXMIType(element) = "uml:Class"]/element, "<Boolean OCL Expression>")

Can anyone please help me out? Many thanks in advance!

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Re: Query to return Classes that use a given Enumeration [message #1753316 is a reply to message #1753303]

Fri, 03 February 2017 17:51

Ed Willink

Messages: 7655
Registered: July 2009

Senior Member

Hi

Use the OCL Console to practice your OCL. See the OCL tutorials. AFAIAA RSA uses a very old and partial Eclipse OCL release. You may needto use a real version of Eclipse to get the benefits of the Eclipse UI that RSA ignores. Since RSA deviates from Eclipse OCL you should look to IBM and your support contract for answers.

Regards

Ed Willink

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Re: Query to return Classes that use a given Enumeration [message #1753548 is a reply to message #1753316]

Tue, 07 February 2017 16:03

James Clark

Messages: 15
Registered: December 2016

Junior Member

Never mind. I ended up solving this with XPath alone with the following query:

resolveURI($diagramURI)/children[getXMIType(element) = "uml:Class"]/element/ownedAttribute[getXMIID(type) = $enumerationID]/..

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