AW: [OJB-developers] Newlines and Client/Server

[Mahler T. <tho...@it...>]

Hi Joachim,

> Hy,
> 
> finally I come to the stage where I stop flaming and start 
> doing real work.

;-)

<snip task no 1> I'm going to
> contact the hsqldb-Maintainer regarding this issue and try to 
> give him a
> patch for this ('though I doubt, that he will release a new 
> version just
> for this patch, unless of course he has enough patches otherwise).
> 

good idea!
I'm not quite sure about the HSQLDB status. They did not bring out new
releases for months !

> The other problem is, that we'd love to use the C/S-concept of of
> ObjectBridge, but have rather specific network-restrictions 
> (HTTP/HTTPS at
> most). So, we'd need to wrap the PersistenceBrokerServer into 
> a Servlet.

That's also a very good idea. I designed the PB Client and Server stuff in a
way to allow a simple servlet implementation.

> Basically this is no problem (from what I saw it seems that the
> functionality is seperated quite good). Obviously I'd also 
> need some minor
> modifications to the PersistenceBrokerClient. Now I'd like to 
> know if you'd
> prefer it if I modified those files to support both (only 
> about 15-30 lines
> of changes in each of them, I guess) or if should copy them and do my
> modifications on new Classes. (or even do some refactoring, 
> but I have to
> look into it, if it would even be necessary).

I think it would be cool to allow the client to talk to either TCP/IP socket
based server or to a servlet based server. 

> 
> One more problem also has to do with C/S: there doesn't seem 
> to be any kind
> of authentification and/or encryption support in it. Both of 
> them would be
> fairly easy, once they have the ability to use Servlets as the Server.
> 

No, currently there is nothing of that kind implemented.

> Btw, has the C/S-concept been optimized with regards to 
> bandwidth/latency?
> At the first glance it seem that it is intended to be used 
> primarily in a
> LAN.

This may become a larger isssue! Currently there are no bandwidth
optimization implemented.
I'd like to use on the fly GZIP compression, but unfortunately object
serialization does not work properly with this compression :-(

I'm not very happy with the performance (and bandwith consumption) of the
C/S mode, but I currently I have no ideas how to optimize it.

Maybe a servlet based implementation may help here too.

Thanks for you offer to help !

cu,

Thomas

> 
> regards
> Joachim Sauer
> 
> 
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