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Sunday, February 05, 2012

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Menu       Home What is NDO? - Executive Overview - NDO for Developers How NDO Works - Persistent Classes - Mapping - Queries - Reverse Engineering - Inheritance, Polymorphism - Distributed Applications Licensing Support - Support Forum - FAQ - Solutions - Downloads - E-Mail Support - Tutorial Videos Online Shop Contact	Welcome!     Welcome to the NDO support forum!  Please register/login at the site if you want to post a thread. We sometimes copy support mails of common interest to the forum. They appear with anonymous sender.  Please post your messages in English language if possible. You can do your posts also in German, we will translate your post and our answer so that all users of the forum can read your posts.  The forum software requires that javascript is enabled.  Please do not insert licence information or licence keys in forum posts.  If you know a good answer to a post of another user, feel free to reply!  The forum is monitored. We reserve the right to remove posts we consider not to be useful for other forum users.  NDO Support Forum     Search Forum Home   NDO-Forum postings in english please, if possible.  Developing with NDO  Loading an obje...  Loading an object twice    5/15/2006 6:12:08 PM anonymous 20 posts Loading an object twice   Hi all, if I load an object with the same query into memory twice, I would expect to have only one object with two references. Is that true for NDO? For example what happens in this situation: I have a table "Gender" with two entries male/female. I load the record male, and after that I load all records (male and female). Is NDO able to detect that male is already in memory? Does is return female as new and male as existing object? What happens if the object male is already changed in memory so there is a difference to the database. Am I notified of that? C.R.  5/15/2006 6:17:28 PM Mirko 109 posts Re: Loading an object twice Hi C.R., NDO always works with just one instance of an object in one PersistenceManager. In your sample, NDO would detect that the male object is already in memory. Although the underlying SQL query returns the corresponding data row as result again, the existing object is used. If the object was changed before the second query, the changes remain intact and are stored with the next call to Save(). If you are using several PersistenceManager instances in parallel, you can also manage several copies of the same object. This is the same as if the object were accessed by several concurrent client machines. Best Regards, Mirko  Page 1 of 1   NDO-Forum postings in english please, if possible.  Developing with NDO  Loading an obje... Flat View Tree View Oldest To Newest Newest To Oldest   Search  Forum Home