[jboss-user] [EJB 3.0] - Re: EJB3 PersistanceManager confusion

[lpiccoli]

hi al,

can u explain the strategy us described reviously
anonymous wrote : 
  | 2) Don't specify the PK; dont set the ID
  | 

Given the ID in the debtor class is an int. 


  |               public void setId(int id) {
  | 		this.id = id;
  | 	}
  | 
  | 

I have a question 

1) The default value with be '0'. How does the entitymanager.merge differenciate between '0' default and a debtor.setId(0)?

I can see how it can identified as 'null' by using a Integer object instead of an int.

many thanks

-lp

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