Open TopComponent with MultiViewElements programmatically

Hi team,

I have 3 MultiViewElement for a custom file type and I  need to open a
TopComponent for a DataObject programmatically.

The problem is that I haven't any class for a TopComponent, only the
MultiViewElement's registered in SFS via annotations for the custom file
type mime-type.

I will need something like this, but I don't know how to reference the
TopComponent class:
                TopComponent tc = new MyTopComponent(myDataObject);
                tc.open();
                tc.requestActive();


Related to this issue, in all 3 MultiViewElement's I have initialization
code that I would to centralize in the TopComponent.
Is possible achieve this?

Thanks in advance.