Cocoa: How to have a context menu when you right-click on a cell of NSTableView

I have a TableView with custom cells. I want a contextual menu to appear when the user right clicks (or any other Apple variants of right-click) on one of the cells (and know which cell they clicked on).

I tried to subclass NSTableView and overwrite this method:

- (NSMenu *)menuForEvent:(NSEvent *)theEvent;

But it is never being called.

On the other hand,

- (void)rightMouseDown:(NSEvent *)theEvent;

Gets called. But I'm not sure it's the one we want.

More details:

//
//  PTTableView.m
// 
//
//  Created by Nathan Hazout on 5/31/11.
//  Copyright 2011 __MyCompanyName__. All rights reserved.
//

#import "PTTableView.h"


@implementation PTTableView

- (id)init
{
    self = [super init];
    if (self) {
        // Initialization code here.
    }

    return self;
}

- (void)rightMouseDown:(NSEvent *)theEvent { 
    NSLog(@"entered rightMouseDown");
}

- (NSMenu *)menuForEvent:(NSEvent *)theEvent {
    NSLog(@"entered menuForEvent");
    return [super menuForEvent:theEvent];
}

- (NSView *)hitTest:(NSPoint)aPoint{
    NSLog(@"entered hitTest");
    return [super hitTest:aPoint];
}

- (void)dealloc
{
    [super dealloc];
}

@end

rightMouseDown gets called. hiTest gets called many times. But menuForEvent doesn't.