Ok but... Can you write an SQL to eagerly load recursive relation ? 2009/8/3 HappyNomad <[email protected]>
> > Hi Fabio, thanks for the reply. But I'm not sure I understand the > nature of your question. In any case, the query would need to be in > HQL, and not SQL, since I need to load the actual objects, and not > just scalar values. > > > On Aug 3, 4:32 pm, Fabio Maulo <[email protected]> wrote: > > Can you write a SQL to eagerly load recursive relation ? > > > > 2009/8/3 HappyNomad <[email protected]> > > > > > > > > > > > > > I have a recursive one-to-many relationship that has the default lazy > > > value of true. How can I execute a query which recursively retrieves > > > the ENTIRE tree? > > > > > Here's the recursive one-to-many relationship: > > > > > <class name="Category" lazy="false"> > > > ... > > > <list name="SubCategories" fetch="subselect"> > > > <key column="ParentCategoryID"/> > > > <index column="PositionInList"/> > > > <one-to-many class="Category"/> > > > </list> > > > > > I don't specify lazy="false" on the list since laziness is required in > > > about half the queries I need to run. I have fetch="subselect" on the > > > list as an optimization for when I do manage to retrieve the entire > > > tree. > > > > > I've tried the ICriteria API: > > > session.CreateCriteria<Category>().SetFetchMode( "SubCategories", > > > FetchMode.Eager ).Add( Restrictions.IsNull > > > ("ParentCategory") ).SetResultTransformer > > > ( CriteriaSpecification.DistinctRootEntity ).List<Category>(); > > > > > but that only eagerly loaded only the first level in the hierarchy. > > > > -- > > Fabio Maulo > > > -- Fabio Maulo --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "nhusers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nhusers?hl=en -~----------~----~----~----~------~----~------~--~---
