lazy="extra" delay the load of the list late as possible.Mean, for example:
- Count don't initialize the collection
- Delete don't initialize the collection
- Add don't initialize the collection if you are using IList
- and some other matters.....
2008/9/23 Tommaso Caldarola <[EMAIL PROTECTED]>
>
> Wow!!! In a project NH 1.04 based we have a custom deep lazy load!!!
>
>
> On 23 Set, 13:01, "Fabio Maulo" <[EMAIL PROTECTED]> wrote:
> > In NH2.1 (trunk) you can use lazy="extra"
> >
> > 2008/9/22 gatapia <[EMAIL PROTECTED]>
> >
> >
> >
> >
> >
> > > Hi,
> >
> > > I need to serialise a data tree however the performance of this is
> > > understandable poor as all children must be fetched prior to
> > > serialisation. I was looking for a better performing way of doing
> > > this.
> >
> > > Currently before serialising a child collection I check wether the
> > > collection is empty by:
> >
> > > if(NHibernate.NHibernateUtil.IsInitialized(Children)) { return
> > > Children.Count() > 0; }
> > > NHibernate.IQuery q = GetSession().CreateFilter(Children, "Select
> > > count(*)");
> > > return Convert.ToInt32(q.UniqueResult()) > 0;
> >
> > > This greatly improves performance over a straight call to
> > > Children.Count() but I still think there must be a better way of doing
> > > this.
> >
> > > If an Entity has 2+ children collections can I get their count in one
> > > database call?
> >
> > > Any other suggestions?
> >
> > > Thanks
> >
> > > Guido Tapia
> >
> > --
> > Fabio Maulo
> >
>
--
Fabio Maulo
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