core data - NSFetchedResultsController change tracking across relationship -

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i have model 2 entities linked to-one relationship. want display in tableview entitya objects entityb.myintattribute equals given value. works when create fetchrequest entitya predicate @"entityb.myintattribute == avalue".

my problem change tracking. have set nsfetchedresultscontrollerdelegate delegate on nsfetchedresultscontroller associated previous fetchrequest. delegate works because gets notified of deletion if set new entityb doesn't match predicate on 1 of results. if change directly value of myintattribute on entityb object predicate result changes, delegate not notified of change.

does nsfetchedresultscontroller change tracking work predicate goes across relationship ? how can fetchedresultcontroller recompute predicate after modification of attribute of relationship ?

are implementing of following methods in delegate:

- (void)controller:(nsfetchedresultscontroller *)controller didchangesection:(id <nsfetchedresultssectioninfo>)sectioninfo atindex:(nsuinteger)sectionindex forchangetype:(nsfetchedresultschangetype)type  - (void)controller:(nsfetchedresultscontroller *)controller didchangeobject:(id)anobject atindexpath:(nsindexpath *)indexpath forchangetype:(nsfetchedresultschangetype)type newindexpath:(nsindexpath *)newindexpath  - (void)controllerdidchangecontent:(nsfetchedresultscontroller *)controller  - (void)controllerwillchangecontent:(nsfetchedresultscontroller *)controller

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