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Concurrency in CDO [message #948116]

Wed, 17 October 2012 15:27

UmaShankar Subramani is currently offline

UmaShankar Subramani
Messages: 76
Registered: December 2011
Location: SWEDEN

Member

In a concurrent modeling environment, how does the change on one client is reflected to another? What kind of information is exchanged between the clients?

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Re: Concurrency in CDO [message #948471 is a reply to message #948116]

Thu, 18 October 2012 00:04

Ed Merks
Messages: 24539
Registered: July 2009

Senior Member

CDO simply produces standard EMF notifications just as if the model was
directly modified on that client. The information for those
notifications is transmitted by the server to the client under the covers.

On 17/10/2012 9:27 PM, UmaShankar Subramani wrote:
> In a concurrent modeling environment, how does the change on one
> client is reflected to another? What kind of information is exchanged
> between the clients?

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Re: Concurrency in CDO [message #948693 is a reply to message #948471]

Thu, 18 October 2012 05:16

UmaShankar Subramani
Messages: 76
Registered: December 2011
Location: SWEDEN

Member

Okay.

But,how the server is notified by the client?

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Re: Concurrency in CDO [message #948777 is a reply to message #948693]

Thu, 18 October 2012 07:07

Eike Stepper
Messages: 5153
Registered: July 2009

Senior Member

Am 18.10.2012 11:16, schrieb UmaShankar Subramani:
> Okay.
>
> But,how the server is notified by the client?
The server is not notified. Clients send commit requests (and other requests) to the server.

Cheers
/Eike

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

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Re: Concurrency in CDO [message #955047 is a reply to message #948471]

Tue, 23 October 2012 09:13

UmaShankar Subramani
Messages: 76
Registered: December 2011
Location: SWEDEN

Member

>CDO simply produces standard EMF notifications just as if the model was
>directly modified on that client. The information for those
>notifications is transmitted by the server to the client under the covers.

I need know more about these EMF notifications. These notifications are some sort of XML model differences sent to the client?

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Re: Concurrency in CDO [message #956218 is a reply to message #955047]

Wed, 24 October 2012 06:28

Eike Stepper
Messages: 5153
Registered: July 2009

Senior Member

Am 23.10.2012 15:13, schrieb UmaShankar Subramani:
>> CDO simply produces standard EMF notifications just as if the model was directly modified on that client. The
>> information for those notifications is transmitted by the server to the client under the covers.
>
> I need know more about these EMF notifications. These notifications are some sort of XML model differences sent to
> the client?
Please read the Javadocs. The EMF book is an excellent source for information, too.

Cheers
/Eike

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

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