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[CDO] CDO_CLASS column in CDO_OBJECTS table [message #1712696]

Tue, 27 October 2015 09:50

Eclipse User

The column CDO_CLASS in the table CDO_OBJECTS only contains negative values.
How one can obtain these values from an actual EClass?

I would like to know how the conversion is done to be able to use it in
SQL queries.

Thanks.

Re: [CDO] CDO_CLASS column in CDO_OBJECTS table [message #1712711 is a reply to message #1712696]

Tue, 27 October 2015 11:15

Eclipse User

Looks like these values are accessible from the MetaDataManager.

IDBStore store = // can get the store from the repository
CDOID id = store.getMetaDataManager().getMetaID(eClass, 0);

The id will contain the negative values I'm looking for.

On 2015-10-27 13:50:46 +0000, Guillaume Hillairet said:

> The column CDO_CLASS in the table CDO_OBJECTS only contains negative values.
> How one can obtain these values from an actual EClass?
>
> I would like to know how the conversion is done to be able to use it in
> SQL queries.
>
> Thanks.

Re: [CDO] CDO_CLASS column in CDO_OBJECTS table [message #1712723 is a reply to message #1712711]

Tue, 27 October 2015 13:01

Eclipse User

Am 27.10.2015 um 16:15 schrieb Guillaume Hillairet:
> Looks like these values are accessible from the MetaDataManager.
>
> IDBStore store = // can get the store from the repository
> CDOID id = store.getMetaDataManager().getMetaID(eClass, 0);
>
> The id will contain the negative values I'm looking for.
Correct.

IIRC., you can also query the table "cdo_external_refs".

Cheers
/Eike

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

>
>
>
> On 2015-10-27 13:50:46 +0000, Guillaume Hillairet said:
>
>> The column CDO_CLASS in the table CDO_OBJECTS only contains negative values.
>> How one can obtain these values from an actual EClass?
>>
>> I would like to know how the conversion is done to be able to use it in SQL queries.
>>
>> Thanks.
>
>

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