gistfile1.m

	NSManagedObjectContext *context = [XAppDelegate managedObjectContext];
	NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
	NSEntityDescription *entity = [NSEntityDescription entityForName:@"Person" inManagedObjectContext:context];	
	NSArray *XIDsToSearchFor = [person.FriendsXIDs valueForKey:@"intValue"];

	NSPredicate *predicate = [NSPredicate predicateWithFormat:@"self IN %@", XIDsToSearchFor];
	NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"Rank" ascending:NO];
	NSArray *sortDescriptors = [[NSArray alloc] initWithObjects:sortDescriptor, nil];

	[fetchRequest setSortDescriptors:sortDescriptors];
	[fetchRequest setEntity:entity];
	[fetchRequest setPredicate:predicate];
	//[fetchRequest setFetchLimit:20];

	[sortDescriptor release];
	[sortDescriptors release];

	NSError *error = nil;
	NSArray *fetchedObjects = [context executeFetchRequest:fetchRequest error:&error];
	
	if (fetchedObjects != nil)
	    [friendList addObjectsFromArray:fetchedObjects];