Re: [eclipselink-users] eclipselink 1.1 getSingleResult(): incompatible

[Yannick Majoros <yannick.majoros@xxxxxxxxxxxx>]

Gordon Yorke a écrit :
> Section 3.6.1 (pg 68 of Final Release)
>
> Here is the bug report : 
> https://bugs.eclipse.org/bugs/show_bug.cgi?id=243205
> --Gordon
>
> > Gordon Yorke a écrit :
> > > The return type depends on what is being queried.  If it is a single 
> > > Entity or a JPQL Constructor query then a single instance of the 
> > > selected type is returned.  If it is a query that selects multiple 
> > > values then an Object[] of those values are returned.  This is 
> > > specified in the specification.
> > > What is the return type you are seeing.
> >
> > It seems it did change from 1.0.2 to 1.1. We have working code which 
> > was based on the old way. Is this documented somewhere?
> >
> > Where can I find this in the specs? I couldn't find any precise 
> > information for now.
For those interested, jpa specs section 3.6.1:

[...]
When native SQL queries are used, the SQL result
set mapping (see section 3.6.6), determines how many items (entities, 
scalar values, etc.) are returned. If
multiple items are returned, the elements of the query result are of 
type Object[]. If only a single
item is returned as a result of the SQL result set mapping or if a 
result class is specified, the elements of
the query result are of type Object.

[...]

--
Yannick Majoros
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