问在辅助线程中绑定到coredata实体NSArrayController的NSTableView列可以工作吗？

EN

// ------- ABCoredataController.h
@interface ABCoredataController : NSObject {
:
    NSArrayController               *ivArrayController;
}
@property (nonatomic, assign) NSArrayController  *arrayController;


// ------- ABCoredataController.m

// This piece executes in Main thread... 
- (void) init {
    ivArrayController = [[NSArrayController alloc] init];
:


// Following is later executed in the Secondary Thread
- (void) secondaryThreadRun:(id)param {
    :
    // prepare everything to access coredata from a secondary thread...
    [self setSecondaryThreadMOC: [[[NSManagedObjectContext alloc]init] autorelease] ];
    [[self secondaryThreadMOC] setPersistentStoreCoordinator:[self mainThreadPSC]];

    // prepare the (entity) array controller
    [[self arrayController] setAvoidsEmptySelection:YES];
    [[self arrayController] setPreservesSelection:YES];
    [[self arrayController] setSelectsInsertedObjects:YES];
    [[self arrayController] setClearsFilterPredicateOnInsertion:YES];
    [[self arrayController] setAutomaticallyPreparesContent:YES];
    [[self arrayController] setAutomaticallyRearrangesObjects:YES];
    [[self arrayController] setAlwaysUsesMultipleValuesMarker:NO];
    [[self arrayController] setUsesLazyFetching:NO];
    [[self arrayController] setEditable:YES];
    [[self arrayController] setEntityName:@"Transaction"];

    // bind arrayController to the managedObjectContext   
    [[self arrayController] setManagedObjectContext:[self secondaryThreadMOC]];
    [[self arrayController] setFilterPredicate:[self predicate]];

    :

// ------- ABWindowController.m
:
// Start the secondaryThreadRun in previous class
[[self coredataCtrlTransaction] start];
// Get the pointer to the entity array controller !!! <== HERE!! is it right?
ivOut_CtEn_Transaction = [[self coredataCtrlTransaction]arrayController];

:
// Bind that entity array controller to the NSTableView columns...
if ( [self out_CtEn_Transaction] != nil ) {
    for ( NSTableColumn *column in [[self out_Tableview_Transaction] tableColumns] ) {
        if ( [column identifier] != nil ) {
            if ( [column infoForBinding:@"value"] == nil ) {
                NSString *theKeyPath=nil;
                if ( [[column identifier] length] > 4 )
                    theKeyPath = [[column identifier] substringFromIndex:4];
                else
                    theKeyPath = [column identifier];

                [column bind: @"value" toObject: [self out_CtEn_Transaction]
                 withKeyPath:[NSString stringWithFormat:@"arrangedObjects.%@", theKeyPath] options:nil];
            }
        }
    }
}