The term
data model in Rogue Wave® JViews
Diagrammer refers to an interface that defines methods to access a
hierarchy of objects with properties. This does not necessarily imply
that business object types are represented by
Java™
classes.
If you have Java classes that represent your business object types,
you can implement the data model interface on top of these; if you
do not already have such Java classes, you can implement the data
model interface without them.
Rogue Wave JViews Diagrammer
uses the data model for information about all the business objects
and creates graphic objects according to the model object states.
Note that one model object is represented by at most one graphic object.
Implementing a data model to interface with existing
business objects does not mean that you have to duplicate your data.
You can implement an appropriate data model directly on top of your
existing data objects. To do this, you must write a class that implements
the
IlvSDMModel interface. You can use
the existing classes in the package
ilog.views.sdm.model as base classes.