Groups > comp.lang.java.programmer > #6037

Re: Spring/hibernate and JDBC

Date	2011-07-10 13:33 +0200
From	Aéris <aeris@imirhil.fr>
Newsgroups	comp.lang.java.programmer
Subject	Re: Spring/hibernate and JDBC
References	<3c16e5e7-3c0b-4126-9dd9-88f372a58f03@e26g2000prf.googlegroups.com> <ivamk9$dph$1@dont-email.me> <a8ce2398-e1f7-4dfd-966e-48e8daa03416@p10g2000prf.googlegroups.com>
Message-ID	<4e198e1d$0$14867$426a34cc@news.free.fr> (permalink)
Organization	Guest of ProXad - France

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Le 10/07/2011 02:32, Jack a écrit :
> Is using JDBC to access database more efficient than using
> Spring/hibernate?

Usually, Hibernate is the very most efficient.

Hibernate use 2 levels of cache to store query results and retrieved
objects.
For example, if you fetch one object, modify it 100×, and then delete
it, Hibernate does only 2 requests : select and delete. All update are
useless.
An other example is retrieving the same object 100× generate only one
select the first time, all others accesses using the Hibernate cache to
find the object.

But Hibernate could be very inefficient if your mapping is badly done.
Lazy loading could collapse your database engine under thousands of
short queries to fetch all children of one object.
On the opposite, eager loading could fetch the ¾ of your database only
with one query.

Hibernate is more efficient if you use it correctly.

- -- 
Aeris
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Spring/hibernate and JDBC Jack <junw2000@gmail.com> - 2011-07-09 14:56 -0700
  Re: Spring/hibernate and JDBC markspace <-@.> - 2011-07-09 16:01 -0700
    Re: Spring/hibernate and JDBC Jack <junw2000@gmail.com> - 2011-07-09 17:29 -0700
      Re: Spring/hibernate and JDBC Arne Vajhøj <arne@vajhoej.dk> - 2011-07-21 17:55 -0400
    Re: Spring/hibernate and JDBC Jack <junw2000@gmail.com> - 2011-07-09 17:32 -0700
      Re: Spring/hibernate and JDBC Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2011-07-10 08:27 -0300
      Re: Spring/hibernate and JDBC Aéris <aeris@imirhil.fr> - 2011-07-10 13:33 +0200
      Re: Spring/hibernate and JDBC lewbloch <lewbloch@gmail.com> - 2011-07-11 11:25 -0700
        Re: Spring/hibernate and JDBC Aéris <aeris@imirhil.fr> - 2011-07-11 20:44 +0200
        Re: Spring/hibernate and JDBC Jack <junw2000@gmail.com> - 2011-07-11 16:39 -0700
          Re: Spring/hibernate and JDBC lewbloch <lewbloch@gmail.com> - 2011-07-11 17:06 -0700
            Re: Spring/hibernate and JDBC Gene Wirchenko <genew@ocis.net> - 2011-07-11 21:37 -0700
          Re: Spring/hibernate and JDBC Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2011-07-12 07:01 -0300
          Re: Spring/hibernate and JDBC Arne Vajhøj <arne@vajhoej.dk> - 2011-07-21 18:00 -0400
        Re: Spring/hibernate and JDBC Arne Vajhøj <arne@vajhoej.dk> - 2011-07-21 17:58 -0400
          Re: Spring/hibernate and JDBC Tom Anderson <twic@urchin.earth.li> - 2011-07-22 17:24 +0100
      Re: Spring/hibernate and JDBC Arne Vajhøj <arne@vajhoej.dk> - 2011-07-21 17:52 -0400
    Re: Spring/hibernate and JDBC Tom Anderson <twic@urchin.earth.li> - 2011-07-10 13:34 +0100
      Re: Spring/hibernate and JDBC Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2011-07-10 11:08 -0300
        Re: Spring/hibernate and JDBC Stanimir Stamenkov <s7an10@netscape.net> - 2011-07-10 17:45 +0300
          Re: Spring/hibernate and JDBC Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2011-07-10 17:35 -0300
      Re: Spring/hibernate and JDBC Steve Sobol <sjsobol@JustThe.net> - 2011-07-10 09:42 -0700
    Re: Spring/hibernate and JDBC Tom <tom400f@gmail.com> - 2011-07-10 22:29 +0000
    Re: Spring/hibernate and JDBC Gunter Herrmann <notformail0106@earthlink.net> - 2011-07-11 10:19 -0400
      Re: Spring/hibernate and JDBC Arne Vajhøj <arne@vajhoej.dk> - 2011-07-21 18:09 -0400
  Re: Spring/hibernate and JDBC Aéris <aeris@imirhil.fr> - 2011-07-10 13:24 +0200
    Re: Spring/hibernate and JDBC Elegie <elegie@anonymous.invalid> - 2011-07-10 13:56 +0200
      Re: Spring/hibernate and JDBC Aéris <aeris@imirhil.fr> - 2011-07-10 14:17 +0200
  Re: Spring/hibernate and JDBC Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2011-07-10 10:44 -0300
  Re: Spring/hibernate and JDBC Jukka Lahtinen <jtfjdehf@hotmail.com.invalid> - 2011-07-11 09:52 +0300
  Re: Spring/hibernate and JDBC lewbloch <lewbloch@gmail.com> - 2011-07-11 11:31 -0700
    Re: Derby and Java SE (was: Spring/hibernate and JDBC) lewbloch <lewbloch@gmail.com> - 2011-07-11 15:46 -0700
  Re: Spring/hibernate and JDBC iadb <freeinternetarticles@gmail.com> - 2011-07-17 10:17 -0700
  Re: Spring/hibernate and JDBC Arne Vajhøj <arne@vajhoej.dk> - 2011-07-21 17:47 -0400
  Re: Spring/hibernate and JDBC Arne Vajhøj <arne@vajhoej.dk> - 2011-07-21 18:02 -0400

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