Accessing attribute constraints within CTF/CTE

[domi55]

Hi

Is there a way to access the defined constraints for an attribute within the code template editor?



http://www.sparxsystems.com/uml_tool_guide/modeling/attributeconstraints.htm

[Eve]

No. You can access them by calling an add-in. Do a search for EXEC_ADD_IN and you'll find some examples.

[domi55]

Thanks Simon. I managed to create a little add-in. But unfortunately I have difficulties to retrieve the attribute constraints.

I can however get the attributes name for example:

Code Template Editor:

Code: [Select]

%EXEC_ADD_IN("IAGen", "getAttributeName", $attID)%
C# Code:

Code: [Select]

public object getAttributeName(EA.Repository Repository, object args)
{
    string[] arguments = (string[]) args;
    return Repository.GetAttributeByGuid(arguments[0]).Name;
}This is code is just to show that my add-in actually works.

C# Code for getting the attribute constraints:

Code: [Select]

public object getAttributeConstraints(EA.Repository Repository, object args)
{
    string[] arguments = (string[]) args;

     // create collection with constraint entries
     EA.Collection constraints = Repository.GetAttributeByGuid(arguments[0]).Constraints;

     // what do I have to return here? To which type do I have to cast constraints.GetAt(0) for example?

     return "";
}
So my questions is: How do I actually do the casting? I tried the following:

Code: [Select]

EA.Constraint b = (EA.Constraint) constraints.GetAt(0);
But this produces the following error:

[domi55]

NVM. I solved the "problem" by using:

Code: [Select]

EA.IDualAttributeConstraint b = (EA.IDualAttributeConstraint) constraints.GetAt(0);