• Open Menu Close Menu
  • Apple
  • Shopping Bag
  • Apple
  • Mac
  • iPad
  • iPhone
  • Watch
  • TV
  • Music
  • Support
  • Search apple.com
  • Shopping Bag

Lists

Open Menu Close Menu
  • Terms and Conditions
  • Lists hosted on this site
  • Email the Postmaster
  • Tips for posting to public mailing lists
Re: saving an object reference
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: saving an object reference


  • Subject: Re: saving an object reference
  • From: James Maxwell <email@hidden>
  • Date: Thu, 27 Dec 2007 11:27:24 -0800

Okay, that's been the suggestion twice now... I've just started learning cocoa/obj-C, from java (I'm porting over some existing java code), so I started this project using a closely-related bit of sample code (Apple's Sketch app), and it seems to use an archived dictionary to save documents (but maybe I've just misunderstood the code!). I've just been trying to adapt that to suit my needs, but it looks like I've hit a wall with that plan! ;-)

Thanks,

J.


On 27-Dec-07, at 10:44 AM, I. Savant wrote:

But how do I store a reference (pointer) to an existing object in a dictionary?

I'm not exactly sure I understand your goal, but storing (archiving/ serializing) an object graph is traditionally done via the NSCoding Protocol:


http://developer.apple.com/documentation/Cocoa/Reference/Foundation/Protocols/NSCoding_Protocol/Reference/Reference.html

--
I.S.




_______________________________________________

Cocoa-dev mailing list (email@hidden)

Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com

Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden


  • Follow-Ups:
    • Re: saving an object reference
      • From: Jean-Daniel Dupas <email@hidden>
References: 
 >saving an object reference (From: James Maxwell <email@hidden>)
 >Re: saving an object reference (From: "I. Savant" <email@hidden>)

  • Prev by Date: Re: saving an object reference
  • Next by Date: Re: saving an object reference
  • Previous by thread: Re: saving an object reference
  • Next by thread: Re: saving an object reference
  • Index(es):
    • Date
    • Thread