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command to create both the domain (semantic) element and the view element
that references it. Using the command infrastructure in GMF ensures that undo
and redo are handled in a generic fashion and eliminates the need for orphan ele-
ment creation.
Figure 10-47
Element creation
Now let's consider the mouse click on the diagram surface, which is covered
by Figures 10-48 and 10-49. First, we see that the compound command loaded
into the creation tool is executed to create the domain and notation view ele-
ments. Note that the domain element is created first and then passed to the
ViewService
for notation element creation, leveraging the registered provider
and corresponding
ViewFactory
.
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