Return an array of all the listeners of the given type that
were added to this model. For example to find all of the
ChangeListeners added to this model:
myAbstractSpinnerModel.getListeners(ChangeListener.class);
Returns:
all of the objects receiving
listenerType notifications
from this model
Parameters:
-
listenerType - the type of listeners to return, e.g. ChangeListener.class