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[Xpand] Issues retrieving enumeration literal from UML stereotype property [message #647539]

Thu, 06 January 2011 17:44

Eclipse User
Messages: 14
Registered: January 2011

Junior Member

I am using Xpand templates to generate code from a UML model that uses custom profile stereotypes. When I tried to use the following line in my Xpand template to get the value of a stereotype property (implemented as an enum)...

«this.getValue(this.getAppliedStereotype(MyProfile::MyMeter .toString()), "level")»

I get the following output in the target file:

org.eclipse.uml2.uml.internal.impl.EnumerationLiteralImpl@4dd84dd8 (name: LOW, visibility: <unset>)

What additional steps do I need to make to just get the enumeration literal value "LOW" to be the output? I've been trying different variations without much success.

Thanks!

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Re: [Xpand] Issues retrieving enumeration literal from UML stereotype property [message #647541 is a reply to message #647539]

Thu, 06 January 2011 17:59

Christian Dietrich
Messages: 4426
Registered: July 2009

Senior Member

Hi, just asking it for its name (.name) does not work? you may have to cast it first to its actual type. (uml::EnumerationLiteral)

«((uml::EnumerationLiteral)this.getValue(this.getAppliedStereotype(test::Bean .toString()), "lala")).name»

Having a look at the the Java Classes might help to solve such problems
org.eclipse.uml2.uml.EnumerationLiteral has a getName() inherited from org.eclipse.uml2.uml.NamedElement

~Christian

[Updated on: Thu, 06 January 2011 18:08]

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Re: [Xpand] Issues retrieving enumeration literal from UML stereotype property [message #647597 is a reply to message #647541]

Fri, 07 January 2011 04:24

Karsten Thoms
Messages: 331
Registered: July 2009
Location: Dortmund

Senior Member

Accessing the name property of an enumeration literal won't work directly, since the internal type of an enumeration literal is its enumeration and thus you get the name of the enumeration, not the literal. You have to write a Java extension to access a literal's name.

~Karsten

Need professional support for Xtext, Xpand, EMF?
Go to: http://xtext.itemis.com
Twitter : @kthoms
Blog : www.karsten-thoms.de

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Re: [Xpand] Issues retrieving enumeration literal from UML stereotype property [message #647602 is a reply to message #647597]

Fri, 07 January 2011 04:42

Christian Dietrich
Messages: 4426
Registered: July 2009

Senior Member

@Karsten i tried my code and it works with uml enumerations.

«DEFINE main FOR test::Bean»
«FILE getFQPN().replaceAll("\\.","/")+"/"+name+".java"»
//«((uml::EnumerationLiteral)this.getValue(this.getAppliedStereotype(test::Bean .toString()), "lala")).name»«REM»will work«ENDREM»
//«this.lala.name»«REM»will work too«ENDREM»
package «getFQPN()»;
public class «name» {

}
«ENDFILE»
«ENDDEFINE»

~Christian

[Updated on: Fri, 07 January 2011 05:20]

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Re: [Xpand] Issues retrieving enumeration literal from UML stereotype property [message #647656 is a reply to message #647602]

Fri, 07 January 2011 10:39

Eclipse User
Messages: 14
Registered: January 2011

Junior Member

Thanks very much Christian! I tried out both suggestions and they worked as advertised. Smile

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