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Re: ORMs comparisons/complaints. [message #184328 is a reply to message #184311]

Mon, 23 December 2013 13:22

leif.roar
Messages: 1
Registered: December 2013

Karma:

Junior Member

In comp.lang.java.programmer Daniel Pitts <newsgroup(dot)nospam(at)virtualinfinity(dot)net> wrote:
>
> So, my question to the groups, what ORMs have you used, and what did you
> like and hate about each of them? I'm not trying to start a flame war,
> so please keep it to personal experiences with projects which used them.

I've worked with Hibernate / JPA and plain old SQL, and for my purposes
(business/process-driven web applications) they're a wash. Both are painful
in their own way, and I can't say I prefer either over the other.

Hibernate takes the pain out of managing the differences in SQL dialects
between various databases, and makes it quick to map data from the
relational tables into your domain objects. On the bad side, you end up
with "one view and one view only" of your data -- trying to represent
the data in a table in two different ways depending on use is a real
pain with Hibernate. You also often end up having to write mapping code
for your data _anyway_, as you might want to map your domain objects
into transfer objects to keep your database model from leaking out
into the display layer or elsewhere.

One annoyance with Hibernate is that you can't easily specify how much of
your object graph you want a query to cover, so you end up having to
keep your database transactions open across the whole of the business
process step, as Hibernate doesn't know what to retrieve until it's
actually used.

Perhaps most dangerously, Hibernate insulates the developers from the
database and keeps them from getting necessary understanding and
experience with it. You easily end up with developers who has learnt
to muddle along using Hibernate, but doesn't really understand what's
happening beneath it. That wouldn't be a problem if Hibernate let you
do 100% of what you needed to do, but in my experience you usually
end up with 5-10% of the database access being ill suited to Hibernate.

Plain SQL is a pain because you have to write all your own data mapping
code, which is error-prone and end up being more work than you thought --
and then you have to manage all the relationships between data in different
tables yourself.

The JDBC API is also really, really bad, but you can escape much of
that pain by using a helper like JDBC Template or similar.

--
Leif Roar Moldskred

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[Message index]

		ORMs comparisons/complaints. By: Daniel Pitts on Sun, 22 December 2013 19:05
		Re: ORMs comparisons/complaints. By: Arne Vajhøj on Sun, 22 December 2013 19:46
		Re: ORMs comparisons/complaints. By: Jerry Stuckle on Sun, 22 December 2013 20:17
		Re: ORMs comparisons/complaints. By: Arne Vajhøj on Sun, 22 December 2013 20:38
		Re: ORMs comparisons/complaints. By: Jerry Stuckle on Sun, 22 December 2013 20:47
		Re: ORMs comparisons/complaints. By: Arne Vajhøj on Sun, 22 December 2013 21:04
		Re: ORMs comparisons/complaints. By: Jerry Stuckle on Sun, 22 December 2013 21:09
		Re: ORMs comparisons/complaints. By: Arne Vajhøj on Sun, 22 December 2013 21:20
		Re: ORMs comparisons/complaints. By: Jerry Stuckle on Sun, 22 December 2013 21:34
		Re: ORMs comparisons/complaints. By: Qu0ll on Mon, 23 December 2013 01:54
		Re: ORMs comparisons/complaints. By: Michael Vilain on Mon, 23 December 2013 04:48
		Re: ORMs comparisons/complaints. By: Jerry Stuckle on Mon, 23 December 2013 12:58
		Re: ORMs comparisons/complaints. By: Arne Vajhøj on Mon, 30 December 2013 03:46
		Re: ORMs comparisons/complaints. By: Qu0ll on Mon, 30 December 2013 03:54
		Re: ORMs comparisons/complaints. By: Arne Vajhøj on Mon, 30 December 2013 04:06
		Re: ORMs comparisons/complaints. By: Qu0ll on Mon, 30 December 2013 04:21
		Re: ORMs comparisons/complaints. By: Jerry Stuckle on Mon, 30 December 2013 13:04
		Re: ORMs comparisons/complaints. By: Arne Vajhøj on Mon, 30 December 2013 17:32
		Re: ORMs comparisons/complaints. By: Jerry Stuckle on Mon, 30 December 2013 17:47
		Re: ORMs comparisons/complaints. By: Qu0ll on Mon, 30 December 2013 21:23
		Re: ORMs comparisons/complaints. By: Doug Miller on Mon, 30 December 2013 19:45
		Re: ORMs comparisons/complaints. By: Ricardo Palomaes on Mon, 30 December 2013 18:20
		Re: ORMs comparisons/complaints. By: The Natural Philosoph on Mon, 30 December 2013 18:34
		Re: ORMs comparisons/complaints. By: Jerry Stuckle on Mon, 30 December 2013 19:27
		Re: ORMs comparisons/complaints. By: Marcel Müller on Sun, 22 December 2013 21:26
		Re: ORMs comparisons/complaints. By: Arne Vajhøj on Mon, 30 December 2013 04:17
		Re: ORMs comparisons/complaints. By: Kevin McMurtrie on Mon, 23 December 2013 00:11
		Re: ORMs comparisons/complaints. By: Arne Vajhøj on Mon, 30 December 2013 04:08
		Re: ORMs comparisons/complaints. By: Arved Sandstrom on Mon, 30 December 2013 21:36
		Re: ORMs comparisons/complaints. By: The Natural Philosoph on Mon, 30 December 2013 22:13
		Re: ORMs comparisons/complaints. By: Arved Sandstrom on Tue, 31 December 2013 02:09
		Re: ORMs comparisons/complaints. By: The Natural Philosoph on Tue, 31 December 2013 11:30
		Re: ORMs comparisons/complaints. By: Jerry Stuckle on Tue, 31 December 2013 13:11
		Re: ORMs comparisons/complaints. By: Chris Uppal on Wed, 01 January 2014 14:20
		Re: ORMs comparisons/complaints. By: Arne Vajhøj on Thu, 02 January 2014 03:05
		Re: ORMs comparisons/complaints. By: Qu0ll on Thu, 02 January 2014 03:48
		Re: ORMs comparisons/complaints. By: Arne Vajhøj on Thu, 02 January 2014 02:57
		Re: ORMs comparisons/complaints. By: Arved Sandstrom on Thu, 02 January 2014 08:04
		Re: ORMs comparisons/complaints. By: Arne Vajhøj on Thu, 02 January 2014 02:54
		Re: ORMs comparisons/complaints. By: Arved Sandstrom on Thu, 02 January 2014 08:09
		Re: ORMs comparisons/complaints. By: Arne Vajhøj on Fri, 03 January 2014 01:54
		Re: ORMs comparisons/complaints. By: Arved Sandstrom on Fri, 03 January 2014 13:18
		Re: ORMs comparisons/complaints. By: Arne Vajhøj on Fri, 03 January 2014 21:45
		Re: ORMs comparisons/complaints. By: Qu0ll on Mon, 23 December 2013 06:38
		Re: ORMs comparisons/complaints. By: Jerry Stuckle on Mon, 23 December 2013 12:57
		Re: ORMs comparisons/complaints. By: Qu0ll on Mon, 23 December 2013 23:11
		Re: ORMs comparisons/complaints. By: Jerry Stuckle on Tue, 24 December 2013 00:59
		Re: ORMs comparisons/complaints. By: Qu0ll on Tue, 24 December 2013 01:14
		Re: ORMs comparisons/complaints. By: Arne Vajhøj on Mon, 30 December 2013 04:02
		Re: ORMs comparisons/complaints. By: Qu0ll on Mon, 30 December 2013 04:40
		Re: ORMs comparisons/complaints. By: Silvio on Mon, 23 December 2013 12:25
		Re: ORMs comparisons/complaints. By: Arne Vajhøj on Mon, 30 December 2013 04:27
		Re: ORMs comparisons/complaints. By: Silvio on Mon, 30 December 2013 13:38
		Re: ORMs comparisons/complaints. By: Daniel Pitts on Mon, 30 December 2013 17:36
		Re: ORMs comparisons/complaints. By: Silvio on Tue, 31 December 2013 00:26
		Re: ORMs comparisons/complaints. By: Arne Vajhøj on Thu, 02 January 2014 03:23
		Re: ORMs comparisons/complaints. By: Arne Vajhøj on Thu, 02 January 2014 03:19
		Re: ORMs comparisons/complaints. By: Silvio on Thu, 02 January 2014 11:36
		Re: ORMs comparisons/complaints. By: Daniel Pitts on Thu, 02 January 2014 17:36
		Re: ORMs comparisons/complaints. By: Silvio on Thu, 02 January 2014 20:06
		Re: ORMs comparisons/complaints. By: Chris Uppal on Fri, 03 January 2014 14:48
		Re: ORMs comparisons/complaints. By: Arne Vajhøj on Fri, 03 January 2014 01:59
		Re: ORMs comparisons/complaints. By: Arne Vajhøj on Fri, 03 January 2014 02:07
		Re: ORMs comparisons/complaints. By: Arne Vajhøj on Fri, 03 January 2014 02:10
		Re: ORMs comparisons/complaints. By: Arved Sandstrom on Tue, 31 December 2013 13:44
		Re: ORMs comparisons/complaints. By: leif.roar on Mon, 23 December 2013 13:22
		Re: ORMs comparisons/complaints. By: Arne Vajhøj on Mon, 30 December 2013 04:20
		Re: ORMs comparisons/complaints. By: Wanja Gayk on Tue, 24 December 2013 11:28
		c By: Jerry Stuckle on Tue, 24 December 2013 13:49
		Re: c By: Qu0ll on Tue, 24 December 2013 22:35
		Re: c By: Graham Hobbs on Wed, 25 December 2013 00:35
		Re: c By: Jerry Stuckle on Wed, 25 December 2013 05:08
		Re: c By: Qu0ll on Wed, 25 December 2013 06:46
		Re: c By: Graham Hobbs on Wed, 25 December 2013 14:24
		Re: c By: Qu0ll on Wed, 25 December 2013 09:41
		[EOD] Re: c By: Wanja Gayk on Wed, 25 December 2013 10:15
		Re: [EOD] Re: c By: Qu0ll on Wed, 25 December 2013 12:29
		Re: [EOD] Re: c By: The Natural Philosoph on Wed, 25 December 2013 12:48
		Re: c By: Arne Vajhøj on Mon, 30 December 2013 03:51
		Re: c By: Jerry Stuckle on Mon, 30 December 2013 13:03
		Re: c By: Arne Vajhøj on Mon, 30 December 2013 17:40
		Re: c By: Jerry Stuckle on Mon, 30 December 2013 17:46
		Re: ORMs comparisons/complaints. By: Arved Sandstrom on Wed, 25 December 2013 17:56
		Re: ORMs comparisons/complaints. By: jebblue on Tue, 31 December 2013 16:52
		Re: ORMs comparisons/complaints. By: Evan Platt on Tue, 31 December 2013 19:50
		Re: ORMs comparisons/complaints. By: Arved Sandstrom on Tue, 31 December 2013 21:54
		Re: ORMs comparisons/complaints. By: jebblue on Wed, 01 January 2014 01:33
		Re: ORMs comparisons/complaints. By: Arved Sandstrom on Thu, 02 January 2014 21:37
		Re: ORMs comparisons/complaints. By: Arne Vajhøj on Thu, 02 January 2014 02:46
		Re: ORMs comparisons/complaints. By: Gordon Levi on Thu, 02 January 2014 08:34
		Re: ORMs comparisons/complaints. By: Arne Vajhøj on Fri, 03 January 2014 01:43
		Re: ORMs comparisons/complaints. By: Gordon Levi on Fri, 03 January 2014 09:19
		Re: ORMs comparisons/complaints. By: Arne Vajhøj on Fri, 03 January 2014 20:43

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