Armin
On this note, with batch mode set to false, I decided to look into sequences
in OJB.
I currently use the default hi low sequence. I have an extent where the top
level class is an interface
And some concrete classes about 2 further levels down e.g.
TopLevelInterface
+
+---------------------+----------------+
Interface1 Interface2 Interface3
+ +
+------------+ +-----------+
Impl1 Impl2 Impl3 Impl4 etc
I often query things from the top level or one of the intermediate levels
(Interface1 to 3 above).
My question regarding sequences is that I have cleared out OJB_HL_SEQ as
reocmmended in the documentation
When changing repository/extents) and I notice that although the max ID for
the extent with TopLevelInterface
At the top is correct the sequence name appears to be Interface1. The first
thing I did was save some instances of Impl1 and Impl2. Surely for this to
work next time the VM starts I would have to have the sequence name of
ToplevelInterface so that the IDs are unique across the entire extent (e.g.
from ToplevelInterface down)
The reason I say this is that if I start storing instances of Impl3 and 4
say, how will they get the right
Sequence e.gf. Interface1 is not "visible" from Impl3 or 4 -- the only
commonly visible interface is
The top level one hence I would have expected the sequence to have this
name.
I hope you can (or someone can) shed some light on my confusion.
Regards,
Mark Rowell
-----Original Message-----
From: Armin Waibel [mailto:[EMAIL PROTECTED]
Sent: 27 October 2003 12:50
To: OJB Users List
Subject: Re: Auto incremented primary key and extents
Hi Mark,
Mark Rowell wrote:
> Sorry
>
> After looking at SequenceManaherHelper I know that the max id of
> sequence for extent is not...
>
> More on the batch mode stuff -- I onlt just turned it on and got these
> problems. RC4 has been working Prior to setting batch-mode="true" in
> the configuration.
>
hmm, AFAIK Oleg has fixed some bugs in conjunction
with batch mode (since rc4). So your problems maybe
a side-effect of the bugs in batch-mode.
regards,
Armin
> -----Original Message-----
> From: Mark Rowell [mailto:[EMAIL PROTECTED]
> Sent: 27 October 2003 12:25
> To: 'OJB Users List'
> Subject: RE: Auto incremented primary key and extents
>
>
> Armin
>
> No the only thing I changed was OJB.properties.
>
> One thing is that this problem happened during a run of my application
> where some batch mode=true stuff Was used. Would this have an impact?
>
> Is the sequence max id still stored in OJB_HL_SEQ?
>
> Regards
>
> Mark
>
> -----Original Message-----
> From: Armin Waibel [mailto:[EMAIL PROTECTED]
> Sent: 27 October 2003 12:21
> To: OJB Users List
> Subject: Re: Auto incremented primary key and extents
>
>
> Hi Mark,
>
> > But as a follow on the extents are more than one level deep --
> would > this > have an impact? No should not. Have a look in
> SequenceManagerHelper#getMaxForExtent
>
>
> > unique Over all tables in the extent? Have I misconfigured OJB on
> upgrading
> > to RC4?
> Did you change metadata on upgrading? Add new extents,
> change order of declaration?
>
> regards,
> Armin
>
>
> Mark Rowell wrote:
>
>
>>Sorry
>>
>>But as a follow on the extents are more than one level deep -- would
>>this have an impact?
>>
>>Regards,
>>
>>Mark Rowell
>>
>>-----Original Message-----
>>From: Mark Rowell [mailto:[EMAIL PROTECTED]
>>Sent: 27 October 2003 11:30
>>To: '[EMAIL PROTECTED]'
>>Subject: Auto incremented primary key and extents
>>
>>
>>Hi
>>
>>I have an extent over 8 classes (and 8 corresponding tables) and I
>>have noticed that primary keys are now not unique over all tables --
>>e.g. when I store and instances of 2 different classes In different
>>"leaves" of the extent I get the same ID in both tables. In RC1 I the
>>autogenerated IDs were unique Over all tables in the extent? Have I
>>misconfigured OJB on upgrading to RC4?
>>
>>Regards,
>>
>>Mark Rowell
>>
>>-------------------------------------------
>>Mark Rowell
>>Structured Credit Europe
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