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Posted to users@openjpa.apache.org by Mansour Al Akeel <ma...@gmail.com> on 2014/06/13 04:09:09 UTC
Enable cascade persist globally and pro grammatically
Is the a way to enable cascade persist globally and pro grammatically using
an EntityManager instance ??
Thank you.
Re: Enable cascade persist globally and pro grammatically
Posted by Mansour Al Akeel <ma...@gmail.com>.
Rick,
Thank you a lot.
On Mon, Jun 16, 2014 at 9:11 AM, Rick Curtis <cu...@gmail.com> wrote:
> Hmm, I don't think there is an easy/elegant way to modify the cascade
> behavior on the fly. I think with some work you could write some code where
> if a field didn't have cascade set, we would just look at some default
> setting... but that would take some hacking at OpenJPA.
>
> Sorry I don't have a better answer for you.
>
>
> On Sat, Jun 14, 2014 at 2:56 PM, Mansour Al Akeel <
> mansour.alakeel@gmail.com
> > wrote:
>
> > Yes, you are right. This is very hacky. But it even gets worse.
> > I need to switch this temporary, and revert it back. So the Cascade All
> > will take effect only to load the graph, and insert/update the date base
> > from file.
> > Then I need it back to the original configuration.
> >
> > I think I need to reconsider this approach. If you have any an advice
> > please let me know.
> >
> >
> >
> >
> > On Fri, Jun 13, 2014 at 4:43 PM, Rick Curtis <cu...@gmail.com> wrote:
> >
> > > > I am wondering if this can be done programmatically AND at runtime
> > > (After the
> > > entityManager is created).
> > > Yes I'm sure it is possible to do programmatically. The problem you're
> > > going to run into with changing this after the EntityManager is loaded
> is
> > > that we will have already processed all of our metadata and the setting
> > > will have already taken hold. It's possible to walk through the entire
> > > metadata tree and reset this value for each relationship, but that
> would
> > be
> > > very hacky.
> > >
> > >
> > > On Fri, Jun 13, 2014 at 3:14 PM, Mansour Al Akeel <
> > > mansour.alakeel@gmail.com
> > > > wrote:
> > >
> > > > Rick,
> > > > Thank you a lot for your help.
> > > > I am wondering if this can be done programmatically AND at runtime
> > (After
> > > > the entityManager is created).
> > > >
> > > > Thank you.
> > > >
> > > >
> > > >
> > > > On Fri, Jun 13, 2014 at 9:18 AM, Rick Curtis <cu...@gmail.com>
> > wrote:
> > > >
> > > > > You can enable cascade persist globally via the jpa defined
> > > > > persistence-unit-metadata defauls element in the orm.xml See the
> > > snippet
> > > > > below:
> > > > >
> > > > > <entity-mappings
> > > > > xmlns="http://java.sun.com/xml/ns/persistence/orm"
> > > > > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> > > > > xsi:schemaLocation="http://java.sun.com/xml/ns/persistence/orm
> > > > > orm_2_0.xsd"
> > > > > version="2.0">
> > > > > <persistence-unit-metadata>
> > > > > <persistence-unit-defaults>
> > > > > <cascade-persist/>
> > > > > </persistence-unit-defaults>
> > > > > </persistence-unit-metadata>
> > > > > ...
> > > > > </entity-mappings>
> > > > >
> > > > > Thanks,
> > > > > Rick
> > > > >
> > > > > On Thu, Jun 12, 2014 at 9:09 PM, Mansour Al Akeel <
> > > > > mansour.alakeel@gmail.com
> > > > > > wrote:
> > > > >
> > > > > > Is the a way to enable cascade persist globally and pro
> > grammatically
> > > > > using
> > > > > > an EntityManager instance ??
> > > > > >
> > > > > >
> > > > > > Thank you.
> > > > > >
> > > > >
> > > > >
> > > > >
> > > > > --
> > > > > *Rick Curtis*
> > > > >
> > > >
> > >
> > >
> > >
> > > --
> > > *Rick Curtis*
> > >
> >
>
>
>
> --
> *Rick Curtis*
>
Re: Enable cascade persist globally and pro grammatically
Posted by Rick Curtis <cu...@gmail.com>.
Hmm, I don't think there is an easy/elegant way to modify the cascade
behavior on the fly. I think with some work you could write some code where
if a field didn't have cascade set, we would just look at some default
setting... but that would take some hacking at OpenJPA.
Sorry I don't have a better answer for you.
On Sat, Jun 14, 2014 at 2:56 PM, Mansour Al Akeel <mansour.alakeel@gmail.com
> wrote:
> Yes, you are right. This is very hacky. But it even gets worse.
> I need to switch this temporary, and revert it back. So the Cascade All
> will take effect only to load the graph, and insert/update the date base
> from file.
> Then I need it back to the original configuration.
>
> I think I need to reconsider this approach. If you have any an advice
> please let me know.
>
>
>
>
> On Fri, Jun 13, 2014 at 4:43 PM, Rick Curtis <cu...@gmail.com> wrote:
>
> > > I am wondering if this can be done programmatically AND at runtime
> > (After the
> > entityManager is created).
> > Yes I'm sure it is possible to do programmatically. The problem you're
> > going to run into with changing this after the EntityManager is loaded is
> > that we will have already processed all of our metadata and the setting
> > will have already taken hold. It's possible to walk through the entire
> > metadata tree and reset this value for each relationship, but that would
> be
> > very hacky.
> >
> >
> > On Fri, Jun 13, 2014 at 3:14 PM, Mansour Al Akeel <
> > mansour.alakeel@gmail.com
> > > wrote:
> >
> > > Rick,
> > > Thank you a lot for your help.
> > > I am wondering if this can be done programmatically AND at runtime
> (After
> > > the entityManager is created).
> > >
> > > Thank you.
> > >
> > >
> > >
> > > On Fri, Jun 13, 2014 at 9:18 AM, Rick Curtis <cu...@gmail.com>
> wrote:
> > >
> > > > You can enable cascade persist globally via the jpa defined
> > > > persistence-unit-metadata defauls element in the orm.xml See the
> > snippet
> > > > below:
> > > >
> > > > <entity-mappings
> > > > xmlns="http://java.sun.com/xml/ns/persistence/orm"
> > > > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> > > > xsi:schemaLocation="http://java.sun.com/xml/ns/persistence/orm
> > > > orm_2_0.xsd"
> > > > version="2.0">
> > > > <persistence-unit-metadata>
> > > > <persistence-unit-defaults>
> > > > <cascade-persist/>
> > > > </persistence-unit-defaults>
> > > > </persistence-unit-metadata>
> > > > ...
> > > > </entity-mappings>
> > > >
> > > > Thanks,
> > > > Rick
> > > >
> > > > On Thu, Jun 12, 2014 at 9:09 PM, Mansour Al Akeel <
> > > > mansour.alakeel@gmail.com
> > > > > wrote:
> > > >
> > > > > Is the a way to enable cascade persist globally and pro
> grammatically
> > > > using
> > > > > an EntityManager instance ??
> > > > >
> > > > >
> > > > > Thank you.
> > > > >
> > > >
> > > >
> > > >
> > > > --
> > > > *Rick Curtis*
> > > >
> > >
> >
> >
> >
> > --
> > *Rick Curtis*
> >
>
--
*Rick Curtis*
Re: Enable cascade persist globally and pro grammatically
Posted by Mansour Al Akeel <ma...@gmail.com>.
Yes, you are right. This is very hacky. But it even gets worse.
I need to switch this temporary, and revert it back. So the Cascade All
will take effect only to load the graph, and insert/update the date base
from file.
Then I need it back to the original configuration.
I think I need to reconsider this approach. If you have any an advice
please let me know.
On Fri, Jun 13, 2014 at 4:43 PM, Rick Curtis <cu...@gmail.com> wrote:
> > I am wondering if this can be done programmatically AND at runtime
> (After the
> entityManager is created).
> Yes I'm sure it is possible to do programmatically. The problem you're
> going to run into with changing this after the EntityManager is loaded is
> that we will have already processed all of our metadata and the setting
> will have already taken hold. It's possible to walk through the entire
> metadata tree and reset this value for each relationship, but that would be
> very hacky.
>
>
> On Fri, Jun 13, 2014 at 3:14 PM, Mansour Al Akeel <
> mansour.alakeel@gmail.com
> > wrote:
>
> > Rick,
> > Thank you a lot for your help.
> > I am wondering if this can be done programmatically AND at runtime (After
> > the entityManager is created).
> >
> > Thank you.
> >
> >
> >
> > On Fri, Jun 13, 2014 at 9:18 AM, Rick Curtis <cu...@gmail.com> wrote:
> >
> > > You can enable cascade persist globally via the jpa defined
> > > persistence-unit-metadata defauls element in the orm.xml See the
> snippet
> > > below:
> > >
> > > <entity-mappings
> > > xmlns="http://java.sun.com/xml/ns/persistence/orm"
> > > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> > > xsi:schemaLocation="http://java.sun.com/xml/ns/persistence/orm
> > > orm_2_0.xsd"
> > > version="2.0">
> > > <persistence-unit-metadata>
> > > <persistence-unit-defaults>
> > > <cascade-persist/>
> > > </persistence-unit-defaults>
> > > </persistence-unit-metadata>
> > > ...
> > > </entity-mappings>
> > >
> > > Thanks,
> > > Rick
> > >
> > > On Thu, Jun 12, 2014 at 9:09 PM, Mansour Al Akeel <
> > > mansour.alakeel@gmail.com
> > > > wrote:
> > >
> > > > Is the a way to enable cascade persist globally and pro grammatically
> > > using
> > > > an EntityManager instance ??
> > > >
> > > >
> > > > Thank you.
> > > >
> > >
> > >
> > >
> > > --
> > > *Rick Curtis*
> > >
> >
>
>
>
> --
> *Rick Curtis*
>
Re: Enable cascade persist globally and pro grammatically
Posted by Rick Curtis <cu...@gmail.com>.
> I am wondering if this can be done programmatically AND at runtime (After the
entityManager is created).
Yes I'm sure it is possible to do programmatically. The problem you're
going to run into with changing this after the EntityManager is loaded is
that we will have already processed all of our metadata and the setting
will have already taken hold. It's possible to walk through the entire
metadata tree and reset this value for each relationship, but that would be
very hacky.
On Fri, Jun 13, 2014 at 3:14 PM, Mansour Al Akeel <mansour.alakeel@gmail.com
> wrote:
> Rick,
> Thank you a lot for your help.
> I am wondering if this can be done programmatically AND at runtime (After
> the entityManager is created).
>
> Thank you.
>
>
>
> On Fri, Jun 13, 2014 at 9:18 AM, Rick Curtis <cu...@gmail.com> wrote:
>
> > You can enable cascade persist globally via the jpa defined
> > persistence-unit-metadata defauls element in the orm.xml See the snippet
> > below:
> >
> > <entity-mappings
> > xmlns="http://java.sun.com/xml/ns/persistence/orm"
> > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> > xsi:schemaLocation="http://java.sun.com/xml/ns/persistence/orm
> > orm_2_0.xsd"
> > version="2.0">
> > <persistence-unit-metadata>
> > <persistence-unit-defaults>
> > <cascade-persist/>
> > </persistence-unit-defaults>
> > </persistence-unit-metadata>
> > ...
> > </entity-mappings>
> >
> > Thanks,
> > Rick
> >
> > On Thu, Jun 12, 2014 at 9:09 PM, Mansour Al Akeel <
> > mansour.alakeel@gmail.com
> > > wrote:
> >
> > > Is the a way to enable cascade persist globally and pro grammatically
> > using
> > > an EntityManager instance ??
> > >
> > >
> > > Thank you.
> > >
> >
> >
> >
> > --
> > *Rick Curtis*
> >
>
--
*Rick Curtis*
Re: Enable cascade persist globally and pro grammatically
Posted by Mansour Al Akeel <ma...@gmail.com>.
Rick,
Thank you a lot for your help.
I am wondering if this can be done programmatically AND at runtime (After
the entityManager is created).
Thank you.
On Fri, Jun 13, 2014 at 9:18 AM, Rick Curtis <cu...@gmail.com> wrote:
> You can enable cascade persist globally via the jpa defined
> persistence-unit-metadata defauls element in the orm.xml See the snippet
> below:
>
> <entity-mappings
> xmlns="http://java.sun.com/xml/ns/persistence/orm"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> xsi:schemaLocation="http://java.sun.com/xml/ns/persistence/orm
> orm_2_0.xsd"
> version="2.0">
> <persistence-unit-metadata>
> <persistence-unit-defaults>
> <cascade-persist/>
> </persistence-unit-defaults>
> </persistence-unit-metadata>
> ...
> </entity-mappings>
>
> Thanks,
> Rick
>
> On Thu, Jun 12, 2014 at 9:09 PM, Mansour Al Akeel <
> mansour.alakeel@gmail.com
> > wrote:
>
> > Is the a way to enable cascade persist globally and pro grammatically
> using
> > an EntityManager instance ??
> >
> >
> > Thank you.
> >
>
>
>
> --
> *Rick Curtis*
>
Re: Enable cascade persist globally and pro grammatically
Posted by Rick Curtis <cu...@gmail.com>.
You can enable cascade persist globally via the jpa defined
persistence-unit-metadata defauls element in the orm.xml See the snippet
below:
<entity-mappings
xmlns="http://java.sun.com/xml/ns/persistence/orm"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence/orm
orm_2_0.xsd"
version="2.0">
<persistence-unit-metadata>
<persistence-unit-defaults>
<cascade-persist/>
</persistence-unit-defaults>
</persistence-unit-metadata>
...
</entity-mappings>
Thanks,
Rick
On Thu, Jun 12, 2014 at 9:09 PM, Mansour Al Akeel <mansour.alakeel@gmail.com
> wrote:
> Is the a way to enable cascade persist globally and pro grammatically using
> an EntityManager instance ??
>
>
> Thank you.
>
--
*Rick Curtis*