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Re: ORMs comparisons/complaints. [message #184312 is a reply to message #184311]

Sun, 22 December 2013 19:46

Arne Vajhøj
Messages: 27
Registered: December 2013

Karma:

Junior Member

On 12/22/2013 2:05 PM, Daniel Pitts wrote:
> This is cross-posted to cl.java.programmer and cl.php.
>
> I've been doing some thinking about my experiences with various ORMs,
> both positive and negative. I find that I often stretch systems to
> there limits, and end up doing a lot of meta-programming to solve
> problems that I've always felt should have been solved by the core
> libraries. Mostly to follow DRY and KISS principals in the core
> business code.
>
> I'm curious if others' have found the same things I have, or if they've
> been satisfied doing things other ways, and if so what ORMs they use.
>
> I've had experience with the following Java ORMs:
> * Hibernate (version 3, using Annotations for instance)
> * Ibatis (many years ago, don't remember the version. around 2006)
> * Straight JDBC. Not exactly an ORM :-)
>
> And then one non-Java ORM: Doctrine, which is modeled after Hibernate,
> including most of its flaws, but missing some of its features.
>
>
> 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'm interested in use-cases from simple small one-off applications to
> complex enterprise-level systems, and highly-scalable systems.
>
> Please include details like "it's easier to maintain <x> type of changes
> with our approach, but <y> is very difficult" etc...

My experience is that ORM is good for cases where all of the
following apply:
- changes of single rows or simple queries
- database is designed for ORM or are relative simple

ORM is obviously not intended for changing large number of rows
(bulk operations).

For very complex queries one end up working around limitations
in the QL to achieve what is easy to do in SQL.

Old legacy databases with a bad design is very difficult to
map to ORM and the result often perform very poorly.

ORM's used:
Java - entity EJB's, Hibernate, JPA
.NET - NHibernate, LINQ to SQL, EF

Non ORM used:
Java - JDBC
.NET - ADO.NET
PHP - mysql, mysqli and PDO extensions

Preference:
Java - JPA (due to standard, features and ease of use)
.NET : NHibernate (due to features and ease of use)

Arne

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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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