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Posted to users@openjpa.apache.org by ma...@poczta.onet.pl on 2009/02/19 13:37:02 UTC
Removing entity with Embedded field
Hi,
I have a following beans:
@Embeddable
class A {
int field1
}
@Entity
class B {
@Id
long id;
int field2
@Embedded
A field3
}
When I trying to delete all instances of B entity from data storage by
"delete from B" I got:
1. Query ("select" statement) for all B instances
2. For each instance from 1. delete statement
Why this is not delete by simple "delete from B" sql statement?
Regards,
Marcin
Re: Re: Removing entity with Embedded field
Posted by Pinaki Poddar <pp...@apache.org>.
Hi,
Yes -- the change is committed on trunk so you will need snapshot build.
The SVN revision is 746640. Because openjpa library is 'self-describing',
once you download, you can verify whether it contains a requisite change by
$ java -jar /path/to/openjpa/jar
will print few details including the latest SVN revision number contained in
this library.
maniek45 wrote:
>
> Hi Pinaki,
>
> How can I verify the issue? Shall I download daily snapshot?
>
> Regards,
> Marcin
>
>
> users@openjpa.apache.org napisał(a):
> >
> > I had put a fix for this issue recently OPENJPA-935.
> > Will the original reporter please verify?
> >
> > OpenJPA makes a decision during bulk delete whether the delete
> operation
> > involves a single table only. That decision was not accounting for
> cascade
> > behavior for embedded fields.
> >
> > [1] http://issues.apache.org/jira/browse/OPENJPA-935
> >
> >
> >
> > Jeremy Bauer wrote:
> > >
> > > Hi Marcin,
> > >
> > > I observe the same behavior when the base entity contains an
> embeddable.
> > > Without an embeddable, the provider issues a single delete (as
> expected).
> > > Since OpenJPA is operating on a single table, I don't see why
> multiple
> > > deletes are necessary. Unless I'm missing something, this appears to
> be a
> > > bug in the provider. Please open a JIRA.
> > >
> > > -Jeremy
> > >
> > > On Thu, Feb 19, 2009 at 6:37 AM, <ma...@poczta.onet.pl> wrote:
> > >
> > >> Hi,
> > >>
> > >> I have a following beans:
> > >>
> > >> @Embeddable
> > >> class A {
> > >> int field1
> > >> }
> > >>
> > >> @Entity
> > >> class B {
> > >> @Id
> > >> long id;
> > >>
> > >> int field2
> > >>
> > >> @Embedded
> > >> A field3
> > >> }
> > >>
> > >> When I trying to delete all instances of B entity from data storage
> by
> > >> "delete from B" I got:
> > >>
> > >> 1. Query ("select" statement) for all B instances
> > >> 2. For each instance from 1. delete statement
> > >>
> > >> Why this is not delete by simple "delete from B" sql statement?
> > >>
> > >> Regards,
> > >> Marcin
> > >>
> > >
> > >
> >
> > --
> > View this message in context:
> http://n2.nabble.com/Removing-entity-with-Embedded-field-tp2354162p2374113.html
> > Sent from the OpenJPA Users mailing list archive at Nabble.com.
> >
>
>
>
--
View this message in context: http://n2.nabble.com/Removing-entity-with-Embedded-field-tp2354162p2384576.html
Sent from the OpenJPA Users mailing list archive at Nabble.com.
Re: Removing entity with Embedded field
Posted by Pinaki Poddar <pp...@apache.org>.
I had put a fix for this issue recently OPENJPA-935.
Will the original reporter please verify?
OpenJPA makes a decision during bulk delete whether the delete operation
involves a single table only. That decision was not accounting for cascade
behavior for embedded fields.
[1] http://issues.apache.org/jira/browse/OPENJPA-935
Jeremy Bauer wrote:
>
> Hi Marcin,
>
> I observe the same behavior when the base entity contains an embeddable.
> Without an embeddable, the provider issues a single delete (as expected).
> Since OpenJPA is operating on a single table, I don't see why multiple
> deletes are necessary. Unless I'm missing something, this appears to be a
> bug in the provider. Please open a JIRA.
>
> -Jeremy
>
> On Thu, Feb 19, 2009 at 6:37 AM, <ma...@poczta.onet.pl> wrote:
>
>> Hi,
>>
>> I have a following beans:
>>
>> @Embeddable
>> class A {
>> int field1
>> }
>>
>> @Entity
>> class B {
>> @Id
>> long id;
>>
>> int field2
>>
>> @Embedded
>> A field3
>> }
>>
>> When I trying to delete all instances of B entity from data storage by
>> "delete from B" I got:
>>
>> 1. Query ("select" statement) for all B instances
>> 2. For each instance from 1. delete statement
>>
>> Why this is not delete by simple "delete from B" sql statement?
>>
>> Regards,
>> Marcin
>>
>
>
--
View this message in context: http://n2.nabble.com/Removing-entity-with-Embedded-field-tp2354162p2374113.html
Sent from the OpenJPA Users mailing list archive at Nabble.com.
Re: Removing entity with Embedded field
Posted by Jeremy Bauer <te...@gmail.com>.
Hi Marcin,
I observe the same behavior when the base entity contains an embeddable.
Without an embeddable, the provider issues a single delete (as expected).
Since OpenJPA is operating on a single table, I don't see why multiple
deletes are necessary. Unless I'm missing something, this appears to be a
bug in the provider. Please open a JIRA.
-Jeremy
On Thu, Feb 19, 2009 at 6:37 AM, <ma...@poczta.onet.pl> wrote:
> Hi,
>
> I have a following beans:
>
> @Embeddable
> class A {
> int field1
> }
>
> @Entity
> class B {
> @Id
> long id;
>
> int field2
>
> @Embedded
> A field3
> }
>
> When I trying to delete all instances of B entity from data storage by
> "delete from B" I got:
>
> 1. Query ("select" statement) for all B instances
> 2. For each instance from 1. delete statement
>
> Why this is not delete by simple "delete from B" sql statement?
>
> Regards,
> Marcin
>