[hibernate-dev] SessionFactory building, 5.0-style

[Steve Ebersole]

There is some question about the "verbosity" the new approach introduces.

See discussion on https://hibernate.onjira.com/browse/HHH-7580 and let 
me know your thoughts.


On 08/31/2012 12:02 AM, Steve Ebersole wrote:
>
> I assume no responses means everyone is ok with this change. Hopefully 
> I will start on those changes next week; for certain I would like to 
> get it done before the meeting
>
> On Aug 23, 2012 8:28 AM, "Steve Ebersole" <steve at hibernate.org 
> <mailto:steve at hibernate.org>> wrote:
>
>     The initial design I had for building a SessionFactory using the
>     new metamodel was 3 steps:
>
>     1) build ServiceRegistry
>     2) build Metadata
>     3) build SessionFactory using both ServiceRegistry and Metadata
>
>     This changed a little as actually implemented in the metamodel branch:
>     1) build "boot strap" service registry
>     2) build basic service registry
>     3) build MetadataSources
>     4) build Metadata
>     5) build SessionFactory using both basic service registry and Metadata
>
>     I would like to change this slightly based on JPA 2.1 work and
>     integrating that with containers (mainly through planning with
>     Scott for JBoss AS).
>
>     <background>
>     Essentially Scott and I made a change proposal to JPA EG for how
>     managed EMF bootstrapping happens to better account for stuff in
>     the container's environment not being available until certain
>     times.  It is a typical "hole in the interaction of specs" deal.
>      Long story short, we want to make boot strapping of an EMF into 2
>     distinct phases.  Whether or not that gets accepted/approved, we
>     will implement this approach for Hibernate EMF bootstrapping and
>     JBoss AS will leverage it.
>
>     The 2 phases are meant to account for container resources not
>     being available or the need to delay classloading.
>     </background>
>
>     The changes I propose would just be ordering:
>     -- phase 1 --
>     1) build "boot strap" service registry
>     2) build MetadataSources
>     -- phase 2 --
>     3) build basic service registry
>     4) build Metadata
>     5) build SessionFactory using both basic service registry and Metadata
>
>
>     -- 
>     steve at hibernate.org <mailto:steve at hibernate.org>
>     http://hibernate.org
>


-- 
steve at hibernate.org
http://hibernate.org