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Re: [eclipselink-users] cascade=refresh does not work like expected

Hi Tom,

the data in the application is not refreshed. That's the problem. I did the SQL examination just to find the reason.

Kind Regards, Michael

-----Ursprüngliche Nachricht-----
Von: eclipselink-users-bounces@xxxxxxxxxxx [mailto:eclipselink-users-bounces@xxxxxxxxxxx] Im Auftrag von Tom Ware
Gesendet: Donnerstag, 23. Dezember 2010 20:40
An: EclipseLink User Discussions
Betreff: Re: [eclipselink-users] cascade=refresh does not work like expected

Are you actually seeing that the data is not refreshed in your application, or 
are you just examining the SQL? (i.e. is the app not refreshing, or just not 
JOIN FETCHING on the refresh?)

-Tom

Michael Simons wrote:
> Hello,
> 
>  
> 
> [EL 2.1.1]
> 
> We've got three classes Vehicle, Tour and TourPosition. A Vehicle has 
> zero, one or more Tours. A Tour has one none, one or more TourPositions 
> (the stops)
> 
>  
> 
> So we declared
> 
> Class Vehicle {
> 
>   @OneToMany(cascade={CascadeType./MERGE/, CascadeType./REFRESH/, 
> CascadeType./REMOVE/}, fetch=FetchType./LAZY/, mappedBy="leadTruck")
> 
>   @JoinFetch(value=JoinFetchType./OUTER/) *// Never remove this, or you 
> will regret it - believe me you will.*
> 
> *  private* List<Tour> tours = *new* ArrayList<Tour>(113);
> 
>   .
> 
> }
> 
>  
> 
> Class Tour {
> 
>   @OneToMany(cascade = CascadeType./ALL/, fetch = FetchType./LAZY/, 
> mappedBy = "tour")
> 
>   @JoinFetch(value=JoinFetchType./OUTER/)
> 
>   *private* List<TourPosition> positions = *new* ArrayList<TourPosition> 
> (113);
> 
>   .
> 
> }
> 
>  
> 
> When I call em.refresh (vehicle) I would have expected that the tours 
> and their positions are also refreshed, but they are not. The only 
> SQL-Statement that I get is:
> 
> SELECT DISTINCT t1.vehicle_id, t1.measure_id, t1.jdo_version, ., 
> t0.tour_id, t0.filled_up, t0.tour_text, .
> 
> FROM vehicle t1
> 
> LEFT OUTER JOIN tour t0 ON (t0.vehicle_id = t1.vehicle_id)
> 
> WHERE (t1.vehicle_id = ?)
> 
>  
> 
> So, at least the TourPositions are _/not/_ refreshed.
> 
>  
> 
> Is this a known issue/feature/bug?
> 
> Do I miss anything?
> 
> If it's a known bug, is it fixed in 2.1.2?
> 
>  
> 
> Kind Regards and happy christmas, Michael
> 
> 
> ------------------------------------------------------------------------
> 
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