Re: [eclipselink-users] Lazy loading can operate when persistence contex

[Tom Ware <tom.ware@xxxxxxxxxx>]

Hi,

  The JPA specification does not specify what the persistence provider should 
do to lazy relationships when the persistence context is closed.  EclipseLink 
has chosen to retrieve them when possible.

  Our implementation of lazy relationships for xToMany relationships does not 
require the use of weaving.  We, instead, use a subclass of your collection 
class.  (In your case we use a class called IndirectList - if you want, you can 
take a look at it in the source to see what it does.)

-Tom

fcalfo wrote:
> fcalfo wrote:
> > Doesn't the persistence context have to be open for a lazy loaded
> > collection to be fetched?
> >
> > I am making sure to run the static weaver
> > (org.eclipse.persistence.tools.weaving.jpa.StaticWeave) before running my
> > test.
>
>
> More info on this: while inspecting the Contract.class file after the static
> weaver was applied, it looks like
> it didn't weave in the lazy loading.
>
> Here's the class definition from the class file after StaticWeave was run:
>
> public class jpa.Contract implements java.lang.Cloneable,
> org.eclipse.persistence.internal.weaving.PersistenceWeaved,
> org.eclipse.persistence.internal.descriptors.PersistenceEntity,
> org.eclipse.persistence.internal.descriptors.PersistenceObject {
>
> It did something since it added the PersistenceWeaved interface
>
> but it should have also added the PersistenceWeavedLazy interface.
>
> Why didn't it add that even though I added the lazy fetch type on the
> supplierContracts collection and the eclipselink.weaving.lazy property is
> set to true?
>
> (I do have this working on another class so I'm wondering what I'm missing
> here)