On Thursday 14 September 2006 16:14, Marc wrote: > Does anyone else here have a similar situation, or has worked on a similar > situaiton in the past?
What you are aiming to build is a 'service layer'. Which I really must draw
and blog about more, but:
Service layer
|
V
Business methods ('managers')
|
V
Data service Layer (Reactor)
Our services pull managers out of an application-wide ColdSpring factory.
Managers may call on other managers which are injected by ColdSpring, along
with a Reactor Factory.
Services are independent of each other. Services return simple (no methods)
transfer objects and are the only parts with access='remote' methods.
Services marshal internal (CFC) objects into a normalised form and exposed a
more or less obvious/static API, made up of simple types and transfer
objects, and a client should only have to make one call to a service to
archive one task.
Business methods hold all your logic about how to actually do the things the
client asked the service to do i.e. update the database via the Data service
layer, send a notification and then update something else.
Data services abstract the underlying storage method (Reactor) for the main
application.
Each layer should be separate and isolated for the one below - ColdSpring
again.
Weather it is Flex via CFC remoting, Apollo via web services or a CFML page
via cfcomponent, everything talks to the service to get stuff done.
--
Tom Chiverton, I hope the attachment comes through and helps
Helping to carefully disintermediate transparent clusters
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