[EMAIL PROTECTED] wrote:
I've always (in OJB ODMG) used
cascading delete bounded by appropriate auto-delete settings; now it looks
as if I have no choice but to delete each individual object by hand. True?
Setting the cascading delete settings by relationship type (1:1, 1:n,
m:n) seems extremely weird, and certainly won't be very useful, since the
correct delete semantics are always a function of the particular
relationship, not of the form of the relationship.
Armin has fixed a number of bugs in OJB in the ODMG area, so ODMG should
generally be much more stable in 1.0.3 than 1.0.0.
However, I believe some bugfixes had to be made on the expense of
modified configuration defaults. Especially for the auto-xxx settings
in the repository file.
Armin will have more info on this, but please have a look at the
docs and see if you get past your upgrade frustration:
http://db.apache.org/ojb/docu/guides/repository.html
See especially:
class-descriptor
The accept-locks attribute specifies whether implicit locking should
propagate to this class. Currently relevant for the ODMG layer only.
reference-descriptor
auto-update
For ODMG-api none is mandatory (since OJB 1.0.2).
auto-delete
For ODMG-api none is mandatory (since OJB 1.0.2).
collection-descriptor
auto-update
For ODMG-api none is mandatory (since OJB 1.0.2).
All changed/required settings sould also be self-documented in the
repository.dtd comments. Be sure to upgrade repository.dtd,
repository-internal.xml, OJB.properties and OJB-logging.properties
between releases.
Regards,
Martin
P.S. I fully agree with you that changed config defaults between minor
releases should generally be avoided. In this case I think some bugs
were considered harmful enough to motivate the frustration...
We should also improve the website with migration HOWTO:s for releases
to avoid the effort to discover this the hard way, like you did.
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