just cannot understand how "user disruption" concern with "model-view or a clear decouple beetwen the server logic".
What is wrong with java web start?
Another question:
I think DuplicateKeyException was specially introduced to suggest us how to build service layer (just look at extended search "name+location" and guessed compound primary key "name+location
. As long as my low level "data access" system (Data.java) fixed with provided interface, all this features i will have to implement in service layer because i have NO DuplicateKeyException in my "data access" update function =>
in service layer it will be
lock ->
call service layer extendedFind(location+name)->
record found -> throw DuplicateKeyException
record not found->call "data access" level update(...)
unlock
What do you think?
P.S. amazing forum! =-)
B&S
Already decided:
- Transfer (value) object design
pattern - service layer (hiding locking from client, extended search, book/unbook, primary key support, etc...)
-VERY simple gui
P.P.S.
Excuse my english!