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Re: ORMs comparisons/complaints. [message #184484 is a reply to message #184479]

Fri, 03 January 2014 09:19

Gordon Levi
Messages: 2
Registered: January 2014

Karma:

Junior Member

Arne Vajhøj <arne(at)vajhoej(dot)dk> wrote:

> On 1/2/2014 3:34 AM, Gordon Levi wrote:
>> Arne Vajhøj <arne(at)vajhoej(dot)dk> wrote:
>>> Let us say that you need to add a field.
>>>
>>> With an ORM you only need to update:
>>> * one dataclass
>>> * one mapping of data
>>>
>>> With plain JDBC you need to change:
>>> * one data class
>>> * N SQL statements
>>> * N places in the Java code
>>
>> I don't understand this so I fear I must be doing something wrong in
>> my Java programs. If someone wants to add a field in a database why do
>> I have to alter anything in my program other than adding, for example,
>> getString(String columnLabel) if I want to actually use the new field
>> at that point in the program.
>
> The context is that the class is persisted in a relational
> database.

Thank you, it seems my fears are well founded. Does that mean that
real Java programmers go to the trouble of breaking the relational
model in order to maintain the object model?
>
> If you are not using an ORM you need to write code to do the
> database interface.
>
> 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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