Question

This should be easy, but I can’t seem to figure it out… How can I check if a child on an entity exists without actually getting or fetching it? The child is lazy loaded right now..

so I have two entities:

class A
{
    public virtual int Id { get; set; }
    public virtual B Child { get; set; }
}
class B
{
    public virtual int Id { get; set; }
    public virtual byte[] Blob { get; set; }
}

I want to check for existence of B in an instance of A without actually fetching the large blog… In straight sql I could just check to see if child_id is not null… Is there some way I can query the NHibernate Proxy of B in A?

Thanks!

Answer 1

nm – one can just check for a null value. Only if a child exists will there be a proxy.