Posts:
20,296
Registered:
12/6/03
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Understanding service granularity
Posted:
Aug 26, 2003 11:00 PM
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[Originally posted by karldjemal]
Hi
I've just started to read the Bitter EJB book. Having completed chapter 2,
I'm a little bit confused by what you mean by a coarse grained service Vs a
fine grained one (see table 2.4). Could you pls. provide a bit more detail
(May be its just my brain not working this morning).
Thanks
Karl
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Posts:
20,296
Registered:
12/6/03
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Re: Understanding service granularity
Posted:
Sep 3, 2003 11:00 PM
in response to:
import-bot
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[Originally posted by crazybob]
> Hi
>
> I've just started to read the Bitter EJB book. Having completed chapter 2,
> I'm a little bit confused by what you mean by a coarse grained service Vs a
> fine grained one (see table 2.4). Could you pls. provide a bit more detail
> (May be its just my brain not working this morning).
>
> Thanks
>
> Karl
Fine grained:
setFirstName(String value);
setLastName(String value);
setAge(int value);
Coarse grained:
setData(String firstName, String lastName, int age);
A fine grained interface is more flexible in use and reuse whereas the coarse
grained interface requires
fewer method invocations. The fine grained interface is more desirable from a
design standpoint
however the coarse is sometime necessary for performance reasons, i.e. network
round trips.
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