how to handle null pointer exception in ejb3
hi
its very silly question i dont know how to check the object is null or not.
this is my code snippet,
Query query=em.createQuery("select u from Users u where u.firstname = :username and u.password = :password");
query.setParameter("username",username);
query.setParameter("password",passwd);
Users user=(Users)query.getSingleResult();
return user;
}
suppose if the constraints not satisfied,user object will be null.
but how to check that one,i tried this way if(user!=null)
but didnt work..
please help me
regards
shru
[616 byte] By [patel123a] at [2007-11-27 7:40:50] 