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

Emmanuel Bernard emmanuel at hibernate.org
Wed May 16 10:16:15 EDT 2012

On 16 mai 2012, at 14:28, Scott Marlow wrote:

> 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?

The latter.

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