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Change default values (specification) for enum literals automatically [message #1818623]

Fri, 20 December 2019 17:29

Michael Nestler

Messages: 30
Registered: September 2014

Member

I try to change the default value (LiteralString) for enumeration literals with the UML2. API and I can not find a method for enum literals to change the default value.
I expect a method like setDefaultValue(String newValue). On other hand is there method to get/set the ValueSpecification for an enum literal.

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Re: Change default values (specification) for enum literals automatically [message #1818707 is a reply to message #1818623]

Tue, 24 December 2019 06:50

Yoann Farré

Messages: 235
Registered: November 2017

Senior Member

Hello,

Try something like :

Property property = getMyPropoerty();
Type type = getMyType();
EnumerationLiteral enumLiteral = getEnumerationLiteral();

InstanceValue instanceValue = (InstanceValue) property.createDefaultValue("default", type, UMLPackage.eINSTANCE.getInstanceValue());
instanceValue.setInstance(enumLiteral);

You can also use :

property.setDefaultValue(instanceValue);

HTH.

Yoann.

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Re: Change default values (specification) for enum literals automatically [message #1819081 is a reply to message #1818707]

Tue, 07 January 2020 12:48

Michael Nestler

Messages: 30
Registered: September 2014

Member

Hi Yoann,
due the usage of the cast (InstanceValue) in your code snippet, I come up with the idea of doing this

LiteralString litStringSpec = (LiteralString) enumLit.getSpecification();
litStringSpec.setValue("newDefaultValue");

to change the default value of an enumeration literal. This works fine for me.
Thanks
BR Michael

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