i didn't understand much thomas - sorry.
in meantime i wrote a little sandbox app to boil my problem down to a
minimum amount of code. My Problem is either i didn't understand anything or
"CachingActivityMapper" is a misleading term because where is the cache and
the cached activity. All i got so far is a class ("CachingMenuMapper") with
a "FilteredActivityMapper.Filter". But its not filtering any activities it
only maps places. And every place is mapped via some "getActivity(place)" to
get "new activity".
So i understood filter/mapping places via "FilteredActivityMapper.Filter"
but i don't know how to write a "MyActivityMapper" (the end in your chain)
that is able to return an old activity. i am sure i am miss something in
between but at the moment my old activity (menuList) is gone at the moment i
go to contentPlace (and reading here i think there must be a way without
saving activity in global field).
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