The difference between those is similar to the one between Class and
Object in Java. MPartDescription is the blueprint for MPart instances
who are the instances you add to your UI-Structure (e.g. as children of
If you look at the ShowView-Menu you see all registered MPartDescriptors
and clicking on one of those the system creates an MPart-instance from
them and places them into the UI-Structure.
You can also compare them to ViewDescriptor/EditorDescriptor in 3.x and
their real UI counterparts ViewPart and EditorPart.
Am 11.08.10 08:37, schrieb Heiko:
> Can somebody explain me why there is an MPart and a MPartDescriptor
> interface? What is the idea behind these two interfaces? What is the
> technical distinction?