This method is called after a selection is made from the menu, allowing the subclass to prepare the OutputAttributes (if needed) before transition to the follow-up state.
When the returned value is
null
, it will be treated as
continueOk()
. Otherwise, it will be used as the follow-up transition.
In addition, this method is also called in the special cases when the menu contains a single item only. Instead of displaying the menu, the state will immediately transition to the
single-item
follow-up state. This single-item follow-up state is whatever
SmappState
returned by the
continueWhenSingleEntry(SmappState)
method. By default, it is
continueDyn(1)
. See
continueWhenSingleEntry(SmappState)
for details. The
SmappState
returned by this method will be submitted to the
continueWhenSingleEntry(SmappState)
method.
It's possible to make additional service called within this method to gather additional information based on the selected item. For example, if the menu presents the transaction list, a call to get transaction details based on the selected transaction item can be done.
null - correspond to everything is OK, proceed as normal SmappState - other than OK, and it needs to be handle accordingly.