I'm trying to fetch a collection of root entities with *some *of their
children. I then need to iterate these to create a dto to send to client,
I.e. the client wants all entities that have changed so it can update a
local database.
The problem is when I try to iterate the child collection NH tries to lazy
load the entire collection rather than just iterating through what it has.
E.g.
var customers = session.CreateCriteria<Customer>()
.CreateAlias("Orders", "order")
.Add(Restrictions.Gt("o.LastModified", lastModifiedDate)
.List();
foreach(var customer in customers)
foreach(var order in customer)
// triggers lazy load of all orders for this customer
How can I ensure I only loop through the filtered collection? The only
alternative is to grab the child collection by itself and send that but this
is a complex object graph which will mean I end up having to send lots of
collections, it seemed much cleaner to send the root entity with the
relevant collections filtered.
Surely I'm missing something obvious here?
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