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Message from discussion AOP and DI
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Brian Kotek  
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 More options Jan 22 2008, 12:37 pm
From: "Brian Kotek" <brian...@gmail.com>
Date: Tue, 22 Jan 2008 12:37:21 -0500
Local: Tues, Jan 22 2008 12:37 pm
Subject: Re: [coldspring-users] Re: AOP and DI
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On Jan 22, 2008 9:02 AM, Tom Chiverton <tom.chiver...@gmail.com> wrote:

> To be clear:
> By 'Manager' I mean a Bean that is not called by the end-user
> application (CFML page or Flex RemoteObject).
> 'Services' wrap Managers and do things like converting argument/result
> types and implementing secutiry.

Yeah I think here you may want to reconsider this definition, because I
beleive that you are defining a Manager in a very different way than most
people would. Managers and Services are used interchangeably as a
description of the interface to the Model. I like the term "service" because
of the prevalence of the "service-oriented architecture" idea. In that
context, most people would understand what a Service is supposed to do
(encapsulate and provide an interface to the Model). It sounds like you are
using the term "manager" to describe your Business Objects/Domain Objects.
If I'm understanding you correctly and this is indeed what you mean, I think
you're going to encounter a lot of confusion when trying to communicate this
to other people. Am I misunderstanding you on this?

> If I call barService.foo(), I wouldn't want those (expensive)
> conversions etc. done multiple times, so if the barManager needs to
> use something from fooManager, it uses the Manager, not the Service.

This might be a totally separate discussion. I suppose it depends on whether
the Service is doing other things (Logging, transaction management, etc.)
that need to be maintained even for an internal method call.

 
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