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geniusit
 Post subject: Lazy load a property
PostPosted: Wed Sep 03, 2008 5:17 am 
Newbie

Joined: Tue Jul 22, 2008 5:19 am
Posts: 10
Hello, I'm using Hibernate 3
Anyway I need to lazy upload a property when I do a select.
In the configuration file I put the property lazy="true", but it doesn't work, it still load the property.
I read in the documentation that in the property the lazy attribute requires
"build-time bytecode instrumentation". Please what does it mean? Can you provide an example?
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nordborg
 Post subject:
PostPosted: Wed Sep 03, 2008 5:36 am 
Expert
Expert

Joined: Wed Mar 03, 2004 6:35 am
Posts: 1240
Location: Lund, Sweden
http://www.hibernate.org/hib_docs/v3/re ... properties
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geniusit
 Post subject:
PostPosted: Wed Sep 03, 2008 5:48 am 
Newbie

Joined: Tue Jul 22, 2008 5:19 am
Posts: 10
I saw, but I don't know what is build time instrument, I read that is possible to don't load a property with criteria....an example?
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nordborg
 Post subject:
PostPosted: Wed Sep 03, 2008 6:16 am 
Expert
Expert

Joined: Wed Mar 03, 2004 6:35 am
Posts: 1240
Location: Lund, Sweden
It means that Hibernate will change your getSomeProperty() method to something that is more like:

Code:
public String getSomeProperty()
{
  if (!isSomePropertyLoaded)
  {
    someProperty = lazyLoadProperty(....);
    isSomePropertyLoaded = true;
  }
  return someProperty;
}


Note! This is just my conceptual idea of what happens. I have no idea that it really works like this.
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geniusit
 Post subject:
PostPosted: Wed Sep 03, 2008 6:29 am 
Newbie

Joined: Tue Jul 22, 2008 5:19 am
Posts: 10
ok....but is there a way to exclude the loading of a property with Criteria?
an example?
sorry for me I'm new of hibernate
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