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[CDO] CDOResource name equal [message #986206]

Mon, 19 November 2012 08:19

Eclipse User

Hello,

I am getting an exception as below.
In the DB it shows up like this:

'2714085', 'NetXResource_GV-Internet'

Why would it be duplicate, if the case is different? (Notice INTERNET is spelled with capital letters in the exception below).

It seems I can create a CDO resource name which is not case sensitive, but when adding a new CDOResource, it becomes case sensitive again. Is this a bug or intended behaviour?

rgds Christophe

Duplicate resource or folder: NetXResource_GV-INTERNET in folder OID46636
at org.eclipse.emf.cdo.server.internal.db.mapping.horizontal.AbstractHorizontalClassMapping.checkDuplicateResources(AbstractHorizontalClassMapping.java:451)
at org.eclipse.emf.cdo.server.internal.db.mapping.horizontal.AbstractHorizontalClassMapping.writeRevision(AbstractHorizontalClassMapping.java:503)

Re: [CDO] CDOResource name equal [message #986292 is a reply to message #986206]

Mon, 19 November 2012 13:29

Eclipse User

Am 19.11.2012 14:19, schrieb Christophe Bouhier:
> Hello,
> I am getting an exception as below. In the DB it shows up like this:
> '2714085', 'NetXResource_GV-Internet'
>
> Why would it be duplicate, if the case is different? (Notice INTERNET is spelled with capital letters in the exception
> below).
> It seems I can create a CDO resource name which is not case sensitive, but when adding a new CDOResource, it becomes
> case sensitive again. Is this a bug or intended behaviour?
I've noticed similar issues with MySQL where the column data looks case sensitive but the (default?) collation is in
fact case insensitive. My customer was able to manually change that setting per table or per column. Later they
customiszed our MySQLAdapter to create columns with the right setting in the first place. Could this have caused your
problem?

Cheers
/Eike

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

> rgds Christophe
>
> Duplicate resource or folder: NetXResource_GV-INTERNET in folder OID46636
> at
> org.eclipse.emf.cdo.server.internal.db.mapping.horizontal.AbstractHorizontalClassMapping.checkDuplicateResources(AbstractHorizontalClassMapping.java:451)
> at
> org.eclipse.emf.cdo.server.internal.db.mapping.horizontal.AbstractHorizontalClassMapping.writeRevision(AbstractHorizontalClassMapping.java:503)
>
>
>

Re: [CDO] CDOResource name equal [message #986389 is a reply to message #986292]

Tue, 20 November 2012 05:12

Eclipse User

Ah ok, so this is DBStore implementation specific.

I will check the collation for our case, but would also be interested to learn more about:
"customiszed our MySQLAdapter to create columns with the right setting in the first place". Do you refer to the collation to use when creating the columns?

thx Christophe

Re: [CDO] CDOResource name equal [message #986404 is a reply to message #986389]

Tue, 20 November 2012 05:38

Eclipse User

Am 20.11.2012 11:12, schrieb Christophe Bouhier:
> Ah ok, so this is DBStore implementation specific.
>
> I will check the collation for our case, but would also be interested to learn more about: "customiszed our
> MySQLAdapter to create columns with the right setting in the first place". Do you refer to the collation to use when
> creating the columns?
IIRC there is some Mysql-specific stuff on CREATE TABLE: http://dev.mysql.com/doc/refman/5.0/en/charset-table.html

Cheers
/Eike

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

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