nhibernate flush by entity basis

Question

hi,

im using nhibernate 2.1.2 and i know that call session.flush will execute the SQL against database for all the entity changes, can nhibernate allow to flush per entity basis?? for instance, i have make changes to entity1 and entity2, but i only want to flush entity1 first then later entity2. it's anyway nhibernate allow to do so??

thanks.

any comments will be highly appreciated.