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| Re: Utility to copy CDOObject data only [message #1006609 is a reply to message #1006582] |
Fri, 01 February 2013 07:17  |
 Eike Stepper
Messages: 5630
Registered: July 2009 |
Senior Member |
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Am 31.01.2013 23:08, schrieb Andrew Whelan:
> Lets say I have 2 CDObjects, object1 and object2.
>
> Is there a CDOUtility
>
> copy(object2, object1)
>
> that will allow me to copy only the data elements of object1 into object2 but yet wont effect any of the CDO plumbing
> of object2(CDOID, CDOView, etc)?
No, the copy of an object is always detached from the graph, which in CDO implies that it's TRANSIENT (i.e., view==null,
id==null).
> I'd like to keep the CDOTransaction and CDOSession of object2 intact. I just want to update its data with that of
> object1.
That's not possible, because the container reference is implicitely bidirectional and leaving it intact would imply to
add the object to the containment reference of its container.
> I was wondering if this is something I need to write myself.
Yes, only you can decide where to attach/add the copied object.
>
> object2 = EcoreUtil.copy(object1)
>
>
> Will obviously hose all of the CDO plumbing.
Yes, and the EMF plumbing (the container reference), too.
Cheers
/Eike
----
http://www.esc-net.de
http://thegordian.blogspot.com
http://twitter.com/eikestepper
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