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Posted to users@jackrabbit.apache.org by quipere <jq...@hotmail.com> on 2006/10/26 11:06:27 UTC

session.importXML transactional

Hi,

Is session.importXML supposed to be transactional?

When I do something like this

try {
    session.importXML("somePath", someStream,
ImportUUIDBehaviour.IMPORT_UUID_COLLISION_REPLACE_EXISTING)
} catch(ValueFormatException vfe) {
    //collect exception but proceed with nextfile
}

session.save();

When a valueformat is thrown, half of the xml untill the source of the
valueformat,  is stored in JCR because of the session.save(). Shouldn't it
be transactional so no nodes are persisted when a exception is thrown?
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Re: session.importXML transactional

Posted by Stefan Guggisberg <st...@gmail.com>.

On 10/26/06, quipere <jq...@hotmail.com> wrote:
>
> Thx, I discovered that the Workspace.importXML is indeed an 'all or nothing'
> implementation. That is exactly what I need. But I also need the trancient
> state of the XML because I save some other items on the same session that
> have a relation with the imported XML.
>
> Does Jackrabbit support to persisting items within a transaction?

jackrabbit supports JTA transactions,
see e.g. http://jackrabbit.apache.org/faq.html#using-jta

cheers
stefan

>
>
> Stefan Guggisberg wrote:
> >
> > On 10/26/06, quipere <jq...@hotmail.com> wrote:
> >>
> >> Hi,
> >>
> >> Is session.importXML supposed to be transactional?
> >
> > it depends on what you mean by transactional.
> > nodes and properties imported by Session.importXML()
> > are 'transient', i.e. in order to be persistent they need
> > to be saved. the result of Item.save()/Session.save()
> > is 'all or nothing', either everything is successfully
> > persisted or nothing is persisted at all.
> >
> > an implementation is free to throw an exception at any
> > point during the import. the sepcification is unclear
> > whether the result of calling Session.importXML()
> > should be 'all or nothing'.
> >
> >>
> >> When I do something like this
> >>
> >> try {
> >>     session.importXML("somePath", someStream,
> >> ImportUUIDBehaviour.IMPORT_UUID_COLLISION_REPLACE_EXISTING)
> >> } catch(ValueFormatException vfe) {
> >>     //collect exception but proceed with nextfile
> >> }
> >>
> >> session.save();
> >>
> >> When a valueformat is thrown, half of the xml untill the source of the
> >> valueformat,  is stored in JCR because of the session.save(). Shouldn't
> >> it
> >> be transactional so no nodes are persisted when a exception is thrown?
> >
> > you could use Workspace.importXML() if you need a 'all or nothing' import.
> >
> > cheers
> > stefan
> >
> >> --
> >> View this message in context:
> >> http://www.nabble.com/session.importXML-transactional-tf2512772.html#a7007568
> >> Sent from the Jackrabbit - Users mailing list archive at Nabble.com.
> >>
> >>
> >
> >
>
> --
> View this message in context: http://www.nabble.com/session.importXML-transactional-tf2512772.html#a7007951
> Sent from the Jackrabbit - Users mailing list archive at Nabble.com.
>
>

Re: session.importXML transactional

Posted by quipere <jq...@hotmail.com>.

Thx, I discovered that the Workspace.importXML is indeed an 'all or nothing'
implementation. That is exactly what I need. But I also need the trancient
state of the XML because I save some other items on the same session that
have a relation with the imported XML.

Does Jackrabbit support to persisting items within a transaction?


Stefan Guggisberg wrote:
> 
> On 10/26/06, quipere <jq...@hotmail.com> wrote:
>>
>> Hi,
>>
>> Is session.importXML supposed to be transactional?
> 
> it depends on what you mean by transactional.
> nodes and properties imported by Session.importXML()
> are 'transient', i.e. in order to be persistent they need
> to be saved. the result of Item.save()/Session.save()
> is 'all or nothing', either everything is successfully
> persisted or nothing is persisted at all.
> 
> an implementation is free to throw an exception at any
> point during the import. the sepcification is unclear
> whether the result of calling Session.importXML()
> should be 'all or nothing'.
> 
>>
>> When I do something like this
>>
>> try {
>>     session.importXML("somePath", someStream,
>> ImportUUIDBehaviour.IMPORT_UUID_COLLISION_REPLACE_EXISTING)
>> } catch(ValueFormatException vfe) {
>>     //collect exception but proceed with nextfile
>> }
>>
>> session.save();
>>
>> When a valueformat is thrown, half of the xml untill the source of the
>> valueformat,  is stored in JCR because of the session.save(). Shouldn't
>> it
>> be transactional so no nodes are persisted when a exception is thrown?
> 
> you could use Workspace.importXML() if you need a 'all or nothing' import.
> 
> cheers
> stefan
> 
>> --
>> View this message in context:
>> http://www.nabble.com/session.importXML-transactional-tf2512772.html#a7007568
>> Sent from the Jackrabbit - Users mailing list archive at Nabble.com.
>>
>>
> 
> 

-- 
View this message in context: http://www.nabble.com/session.importXML-transactional-tf2512772.html#a7007951
Sent from the Jackrabbit - Users mailing list archive at Nabble.com.

Re: session.importXML transactional

Posted by Stefan Guggisberg <st...@gmail.com>.

On 10/26/06, quipere <jq...@hotmail.com> wrote:
>
> Hi,
>
> Is session.importXML supposed to be transactional?

it depends on what you mean by transactional.
nodes and properties imported by Session.importXML()
are 'transient', i.e. in order to be persistent they need
to be saved. the result of Item.save()/Session.save()
is 'all or nothing', either everything is successfully
persisted or nothing is persisted at all.

an implementation is free to throw an exception at any
point during the import. the sepcification is unclear
whether the result of calling Session.importXML()
should be 'all or nothing'.

>
> When I do something like this
>
> try {
>     session.importXML("somePath", someStream,
> ImportUUIDBehaviour.IMPORT_UUID_COLLISION_REPLACE_EXISTING)
> } catch(ValueFormatException vfe) {
>     //collect exception but proceed with nextfile
> }
>
> session.save();
>
> When a valueformat is thrown, half of the xml untill the source of the
> valueformat,  is stored in JCR because of the session.save(). Shouldn't it
> be transactional so no nodes are persisted when a exception is thrown?

you could use Workspace.importXML() if you need a 'all or nothing' import.

cheers
stefan

> --
> View this message in context: http://www.nabble.com/session.importXML-transactional-tf2512772.html#a7007568
> Sent from the Jackrabbit - Users mailing list archive at Nabble.com.
>
>