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getPrimarykey() call in ejbActivate()/ejbPassivate()?

 
Prashant Neginahal
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Hi All,

It is possible to call getPrimaryKey() in ejbActivate()/ejbPassivate() methods of entity bean. But in these method the bean is still NOT associated to any entity. So, how does it possible?

Thanks,
Prashant
 
Vijay Dasari
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Hi,

One of the ways a bean transitions from "Pooled State" to "Method Ready State"
is through ejbActivate() and you have access to getPrimaryKey() method but you can not use the setters and getters until the ejbLoad() method callback.

Here is what happens

1. Client calls a business method.
2. The container sees that it, does not have the bean instance for that entity in "Method Ready State"
3. It takes an instance from the pool.
4. Assigns the EJBObject(Context) to bean instance.
5. calls ejbActivate() , now you can acess the primaryKey of the Object instance.
6. Container loads the data from the database and sets the instance fields of the bean.
6. calls ejbLoad().

Vijay.
 
KasiMurugan Ramasamy
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Hi Prashant,

When ejbPassivate calling on Entity Bean instance mean, Still entity bean in method ready state, but ready to move method ready state to Pooled state and not interested in business method processing.

After ejbPassivate only, it goes to pooled state.

Regards
Kasimurugan R.
 
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