• 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: Optimistic Locking Example
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Optimistic Locking Example


  • Subject: Re: Optimistic Locking Example
  • From: Kieran Kelleher <email@hidden>
  • Date: Mon, 23 May 2005 08:07:32 -0400

You should bookmark these resources:
http://developer.apple.com/documentation/WebObjects/index.html

and optimistic locking handling is detailed here:
http://developer.apple.com/documentation/WebObjects/Enterprise_Objects/ UpdateStrategies/chapter_9_section_8.html


... but really the whole book named Enterprise Objects is essential reading if you don't want to be stuck and struggling with EOF....
http://developer.apple.com/documentation/WebObjects/Enterprise_Objects/ index.html


HTH,

-Kieran
________________________________________________________________
Blog: http://webobjects.webhop.org/


On May 23, 2005, at 7:44 AM, Dmitri wrote:

Hi every1,

i wanted to ask if some could send me small example programm for optimistic locking. I mean i tryed to write one now. Just made simple WOApplciation "Test".
Than added to this e Emodel like "test".


Now i had Applicatin Test.woa qwith nice model in it "test.eomodeld" with only one Table "Test", with 3 attributes. testid (PrimaryKey Locked), testfield1(Integer, Locked), testfield2(String Locked).

Now if i try to get on this applicatipn from 2 differend Browsers and editing same object there. Like User1 takes this object to edit, Than user2 takers this object to edit. User2 saves Changes. User1 saves changes. here must be actually exeption from Optimist locking, that object was already saved and have changed his values, but nothing happens. values just overwrite last saved data in databse. Do i understand it right, that my Optimistic Lockign thing is not working ?

So if some1 could write small application with using and actually getting exception on saving from two different instances, i would very appreciate this.

Dmitri
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Webobjects-dev mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
email@hidden


This email sent to email@hidden


_______________________________________________ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (email@hidden) Help/Unsubscribe/Update your Subscription: This email sent to email@hidden
References: 
 >Optimistic Locking Example (From: Dmitri <email@hidden>)

  • Prev by Date: Optimistic Locking Example
  • Next by Date: Re: Optimistic Locking Example
  • Previous by thread: Optimistic Locking Example
  • Next by thread: Re: Optimistic Locking Example
  • Index(es):
    • Date
    • Thread