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Core Data - Will NSFetchedResultController automatically trace changes if I give NSPredicate and delegate

NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];

    NSEntityDescription *entity = [NSEntityDescription entityForName:@"Person" inManagedObjectContext:self.globalContext];

    [fetchRequest setEntity:entity];

    [fetchRequest setFetchBatchSize:200];

 

    NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"Department" ascending:YES selector:nil];

 

    NSArray *descriptors = [NSArray arrayWithObjects:sortDescriptor, nil];

    [fetchRequest setSortDescriptors:descriptors];

    [sortDescriptor release];

 

    NSPredicate *pred = [NSPredicate predicateWithFormat:@"Department IN %@",departmentArray];

    [fetchRequest setPredicate:pred];

 

    self.resultsController = [[[NSFetchedResultsController alloc] initWithFetchRequest:fetchRequest managedObjectContext:self.globalContext sectionNameKeyPath:@"Department" cacheName:@"Root"] autorelease];

    self.resultsController.delegate = self;

 

    [self.resultsController performFetch:nil];

    [fetchRequest release];