I am trying to figure out the best way to do this and granted I am not sure my 
architecture is the most sane or sensible way to handle it.  I am trying to 
build my DB interface and I want to allow the system to deal with numerous 
types of data stores.  So I have a config file that is read and gets the 
information needed.  So to pseudo lay it out:

(define (query-db where-clause))

(define (db-type)
  (cond
    [(=? db-conf '(mysql)) (????)]) ;something to redefine how query-db 
actually works.
)

Maybe this is silly as in query-db I can just do a conditional for each type.  
But then I have to do a conditional for each DB action, connect, drop, query, 
update, etc.  I was thinking loading the conditional and redefining place 
holders would be a more elegant solution.  I don't know just spit balling with 
a different design pattern here.

Ken

-- 
You received this message because you are subscribed to the Google Groups 
"Racket Users" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to racket-users+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Reply via email to