Re: Is possible store an object update in Ozone Database?

Hi,

There is no specific method for update in Ozone. Each method that updates the 
object is marked with an @update javadoc tag (or an //update comment after 
the method or a method name pattern passed to OPP  - see turorial and 
examples). The resulting proxy generated by OPP will signal to the server how 
to behave. My guess is that you are running Ozone as a local embedded 
database and that objects are not correctly marked as updates which would 
mean that changes are not stored persistantly. The whole point and great 
advantage of Ozone over other persistence frameworks such as JDO, Hibernate 
etc is that storage is truly transparent - no storageManager.persist(obj)  or 
whatever just normal java interaction with and the server will take care of 
persistence for you!

Best regards,
Per


On Tuesday 29 November 2005 04.43, Naaliel Mendes wrote:
> Hi,
> I'm trying store an alteration in Ozone database without sucess. So, I
> need help.
> I have the following line in the sense of Ozone + Benchmark OO7:
>
> Benchmark anBenchmark = (Benchmark)
> anDatabase.objectForName("OO7Benchmark");
>
> Well, I can found the elements of OO7Benchmark throught BenchmarkImpl
> methods. In this moment, I take a object from class OO7_AtomicPartImpl
> and use setX to define a new value. At this moment, I would like store
> this information in database, but I don't know how. When I access this
> object in the currently database, I can see that new value (for this I
> use traversal query). But, when database is off and after on, I can't
> see the updates, the new value disappear. With this scenario, I regard
> that my updates were not persisted in Ozone database.
>
> For this side, I can be wrong. Perhaps, any concept is hidden for me
> now. When I see org.ozoneDB.Database I can see methods for
> create/copy/delete an object, but I don't see any method for update an
> object.
>
> Regards,
> Naaliel Mendes
>
>
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