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[CDO] on Google App Engine [message #516124]

Mon, 22 February 2010 19:37

Stephan Zehrer

Messages: 42
Registered: July 2009

Member

Hi,

are there any experience of realizing a CDO server on the Google App Engine?

Would be nice to have an App Engine datastore for storage of EMF objects.

Greetings

Stephan

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Re: [CDO] on Google App Engine [message #516128 is a reply to message #516124]

Mon, 22 February 2010 19:43

Thomas Schindl

Messages: 6651
Registered: July 2009

Senior Member

AppEngine Processes only live for a short time (maximum of 20 seconds
IIRC) and killed afterwards.

Tom

Am 22.02.10 20:37, schrieb Stephan Zehrer:
> Hi,
>
> are there any experience of realizing a CDO server on the Google App
> Engine?
>
> Would be nice to have an App Engine datastore for storage of EMF objects.
>
> Greetings
> Stephan

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Re: [CDO] on Google App Engine [message #516198 is a reply to message #516124]

Tue, 23 February 2010 07:47

Eike Stepper

Messages: 6682
Registered: July 2009

Senior Member

Am 22.02.2010 20:37, schrieb Stephan Zehrer:
> Hi,
>
> are there any experience of realizing a CDO server on the Google App
> Engine?
Not that I heard of so far.

>
> Would be nice to have an App Engine datastore for storage of EMF objects.
I can not judge that ;-)

Cheers
/Eike

----
http://thegordian.blogspot.com
http://twitter.com/eikestepper

Cheers
/Eike

----
http://www.esc-net.de
http://thegordian.blogspot.com
http://twitter.com/eikestepper

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Re: [CDO] on Google App Engine [message #517029 is a reply to message #516198]

Thu, 25 February 2010 19:32

Stephan Zehrer

Messages: 42
Registered: July 2009

Member

Well let's decompose the problem..

Is it possible (and did someone) run Net4j signalling in a WAR container which IMHO the App Engine provide.

Are there plans to provide a JPA implementation for an CDO store?
(i read something about ... the CDO Hibernate Store uses Teneo which may supports JPA)

Are there more details available how to implement a CDO store?
(the FAQ just says, implementing some interfaces ... )

[quote title=Eike Stepper wrote on Tue, 23 February 2010 02:47]
> are there any experience of realizing a CDO server on the Google App
> Engine?
Not that I heard of so far.

>> Would be nice to have an App Engine datastore for storage of EMF objects.
>I can not judge that Wink

Well try

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Re: [CDO] on Google App Engine [message #523046 is a reply to message #516128]

Wed, 24 March 2010 20:54

Stephan Zehrer

Messages: 42
Registered: July 2009

Member

Tom Schindl wrote on Mon, 22 February 2010 14:43

AppEngine Processes only live for a short time (maximum of 20 seconds
IIRC) and killed afterwards.

Tom

IMHO this view is to generic. It depends on the protocol you are using.

e.g. the app engine supports XMPP

http://code.google.com/appengine/articles/using_xmpp.html

T.G.I.F
Stephan

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