ejb 3.0 - Difference between creating dao object with constructor and by EJB injection -

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i know difference between creating dao object constructor :

mydaoobject = new mydaoobject();

and creating ejb injection :

@ejb mydaoobject mydaoobject;

is there difference in running and/or performance ? thanks.

well...you can't create ejbs constructor because lose functionality offered container (dependency injection, pooling, calling of @postconstruct, transactions, ...). correct way 

@ejb mydaoobject mydaoobject;

p.s. or, in case using cdi, @inject instead of @ejb


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