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General questions about CDO [message #1235595]

Fri, 24 January 2014 19:02

Roza Ghamari

Messages: 82
Registered: January 2013

Member

Al,

I have some general questions about CDO which I couldn't find an accurate answer for on the web.

1. Is CDO 4.2 compatible with Indigo?
2. If I use MySQL DB for the backend, and add some data to my DB with CDO. What would happen if I change the datamodel (the ecore) for this data? Assuming the changes are backward compatible (so just added methods or attributes).

I'll really appreciate your help.

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Re: General questions about CDO [message #1242264 is a reply to message #1235595]

Sun, 09 February 2014 08:37

Eike Stepper

Messages: 6690
Registered: July 2009

Senior Member

Am 24.01.2014 20:02, schrieb Roza Ghamari:
> Al,
>
> I have some general questions about CDO which I couldn't find an accurate answer for on the web.
> 1. Is CDO 4.2 compatible with Indigo?
Neither CDO nor Net4j have a very intimate relationship to the Platform. Most plugins declare this:

Require-Bundle: org.eclipse.core.runtime;bundle-version="[3.5.0,4.0.0)"

That said, CDO is only tested with the Platform and EMF versions that are displayed in the respective section of the CDO
Downloads page http://www.eclipse.org/cdo/downloads , e.g.:

CDO 4.2 is expected to be used with Kepler <http://www.eclipse.org/kepler>./Eclipse 3.8 / 4.3 + EMF 2.9/

> 2. If I use MySQL DB for the backend, and add some data to my DB with CDO. What would happen if I change the datamodel
> (the ecore) for this data? Assuming the changes are backward compatible (so just added methods or attributes).
CDO doesn't support for automatic instance migration. Please search this forum for "model evolution" to get some hints
on what's possible.

Cheers
/Eike

----
http://www.esc-net.de
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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