[hibernate-dev] natural-id to primary key cache

[Steve Ebersole]

Historically natural-id look ups were accomplished by leveraging 
Criteria queries.  Caching was handled through the second level query 
cache.

One of the new things in 4.1 is the dedicated natural-id loading API. 
So the caching will be quite different here.  I am a little leery about 
making a breaking changes in 4.1 after all the changes in 4.0 if we can 
avoid it.  If we can't we can't.  One thought for this was to use a 
SessionFactory scoped "cache" for this in 4.1 and then add a new second 
level cache Region construct for this in 5.0.  The *only* benefit is to 
keep the second level cache SPI the same between 4.0 and 4.1.  Is that 
worth it?  Any thoughts?


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