Question

I have a UML class diagram with 2 classes A and B in enterprise architect (example simplified). The class diagram shows an association between A and B. The association is 0..1 To 0..m for A and B respectively. This means that A can have 0 … m B instances and B belongs to 0 or 1 A instance. I generated this C# code with the enterprise architect (simplified):

class A
{
   public B _b;
}

class B
{

}

However, shouldn’t it rather be:

class A
{
   public IList<B> _bs;
}

class B
{

}

Is there anything I have to consider during code generation (I also selected both classes and than generated the code without success).

Answer 1

Go to Tools – Options – Source Code Enineering – C# and click the Collection Classes button to specify the collection classes used for code generation (ignore the 1..* label).

You specify multiplicity properties (ordered etc) in the connector’s Properties, on the Target Role tab (I’m pretty sure EA will ignore the 0..1 multiplicity on the Source Role; there isn’t really a lot it could do with it).

Finally, make sure all your classes and packages are specified as C#. Easiest way is to right-click the package in the project browser and select Code Engineering – Reset Options for this Package, then in the dialog specify “Where language is <All>”, “Convert to C#” and Process Child Packages.