[omniORB] newbie quick queries

[Eric Damphousse]

Thanks guys.... you have been an invaluable resource. There are many 
more things which are clearer now. I guess that though I read (still 
reading) the H&V book, I look at it with the eyes of a COM guy, and that 
is a bad way of studying CORBA. There are subtle differences that make a 
whole world of difference in the end.

Again, my thanks to all of you.

Eric

FountainB at switch.aust.com wrote:

>Eric Damphousse wrote:
>  
>
>>In this scenario, I would have an object called createuser running
>>on 100's of machines. I the manager would only have to select a
>>subset of those machines from my local client, set you up, and I
>>am done.
>>    
>>
>
>Terminology again - you don't have one object running on 100's of
>machines, you have 100's of servants (objects), each running in a
>process on a separate machine. All these servants implement the
>same interface (class). Presumably they all register in a single
>naming service, using different names.
>
>The question here is whether you are happy to have the server
>processes running constantly, whether or not they are in use. In
>many cases this is perfectly acceptable, in which case you may
>wish to run them as a daemon (unix) or a service (windows).
>In some cases you may prefer to conserve system resources,
>especially where you might have several different types of server
>process and they are only used sporadically. In this case you might
>use an implementation repository to launch the processes on
>demand. You still have to have the impl repository running
>constantly - something has to intercept the requests.
>
>Implementation repositories are neat, and commercial ORBs
>often make a big deal of them because they are not standardised
>and present an area where ORBs can differentiate themselves
>from each other. Having said that, I feel that they are a bit
>overrated. I have never really felt that I was suffering from the
>lack of an implementation repository. Possibly such a tool
>would be really useful in some situations, but not in the problem
>domains I have been involved in.
>
>Bruce Fountain
>Senior Software Engineer
>Union Switch & Signal
>Perth, Western Australia
>
>
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>
>  
>

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