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From Doug Cutting <cutt...@apache.org>
Subject Re: Avro Client-Server - generic vs specific
Date Mon, 30 Sep 2013 21:08:48 GMT
For RPC, specific is usually most convenient.  The generated interface
and classes can be used to create requests and make calls, while a
service can implement the interface.  Generic might be useful for
proxy-type RPC services, that can handle RPCs made in any protocol.

Doug

On Mon, Sep 30, 2013 at 3:32 AM, michaƂ <michal.one1337@gmail.com> wrote:
> Hello,
>
> We have got two ways of creating an RPC communication protocol from AVDL.
>
> Generic:
> https://github.com/matteobertozzi/Hadoop/blob/master/avro-examples/java/ipc/HTServer.java
> Specific:https://github.com/phunt/avro-rpc-quickstart/blob/master/src/main/java/example/Main.java
>
> Specific provide a custom implementation (it require code generation based
> on avdl) while generic provide 'generic' implementation. What this *generic*
> actually means in terms of a protocol specification and code use?
>
> 1. What is the difference between the two apart from code look?
> 2. I can not understand what would be a good example code showing the
> advantages of Specific vs Generic responder?
> 3. When would be the good choice to use *generic* and when *specific (code
> generation?)* responder?
>
> thank you in advance for your time replying.
>
> Mick

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