posted 18 years ago
Joy..
I feel the answer mentioned in the HFEJB is correct; i.e. answer - d only
Option C is bit tricky, you need to interpret it carefully.
c) The provider must close any database connections before ejbPassivate() completes.
Thumb Rule :
The Stateful session bean will successfully passivated if we ensure that all the non-transient variables must one of the following -
1. Serializable Object
2. a null value
3. bean's remote component interface or home interface
4. bean's local component or home interface
5. a SessionContext Object
6. Object of type JNDI Context
7. UserTransaction interface type
8. Resource manager connection Factory (like javax.sql.DataSource instance)
Closing the database in option C, implies something like conn.close();
It is good to call the clean up methods in the methods ejbPassivate() and ejbRemove(), but it is not a MUST. Here the option C fails..
I hope this might have cleared your doubt.
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