Once a manager has been added in a manager, it is no
different from any other graphic object. Nevertheless, the manager
contains a set of methods that allow you to have quick access to the
managers added in a manager and to the manager hierarchy in general.
You can obtain an enumeration of the managers present
in a submanager using the method
getManagers and
a count of how many managers are present with the method
getManagersCount.
Note that these methods will return the submanagers at
the first level of the hierarchy only. Using these methods is much
more efficient than traversing the list of all objects present in
a manager.
You can also traverse up the hierarchy of managers, using
the method
getParent.
subManager.getParent()
For a manager at the top level, this method returns null
.