[hibernate-dev] JPA merge question about detached entity with lazy fields that haven't been fetched...

Scott Marlow smarlow at redhat.com
Wed May 16 08:28:58 EDT 2012

According to JPA 2.0 specification section, when merging a 
detached entity with lazy associations that haven't been fetched:

The persistence provider must not merge fields marked LAZY that have not 
been fetched: it must ignore such fields when merging.

After merging an entity, will accessing one of the entities LAZY fields 
(that was previously not fetched) result in a lazy initialization error 
or will we try to fetch from the database?


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