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Groups > comp.lang.java.programmer > #33020
| From | Arne Vajhøj <arne@vajhoej.dk> |
|---|---|
| Newsgroups | comp.lang.java.programmer |
| Subject | Re: Performance JPA |
| Date | 2015-11-07 22:12 -0500 |
| Organization | Aioe.org NNTP Server |
| Message-ID | <n1meib$8bh$2@speranza.aioe.org> (permalink) |
| References | (1 earlier) <563763d9$0$23727$e4fe514c@news.xs4all.nl> <87d1vrk20x.fsf@Equus.decebal.nl> <56389a9e$0$23778$e4fe514c@news.xs4all.nl> <n1bnte$2j8$2@speranza.aioe.org> <5639ce9d$0$23755$e4fe514c@news.xs4all.nl> |
On 11/4/2015 4:23 AM, Silvio wrote: > On 11/04/2015 02:44 AM, Arne Vajhøj wrote: >> Really?? >> >> I have never seen such a problem. > > I have seen tons of them. Code that used to work with a logical filter > that was easily represented as a WHERE-clause for SELECT, UPDATE or > DELETE statements was converted to something that was working with some > Set of entities. Every action on the complete set was then translated to > N calls on the individual entities. Sweet. Can you provide an example? >> em.createQuery is easy and generate an equivalent SQL to the one >> to chose if manually written. >> > > Sure, that is why I said it could be fixed by changing the code. But > IMHO it is a bit of a wart on the whole idea of having entities > represented as individual instances (which I generally consider a stupid > idea in the first place). ???? Having a method that returns a collection of objects is basic feature in almost all data access code. Arne
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Performance JPA Cecil Westerhof <Cecil@decebal.nl> - 2015-11-02 09:47 +0100
Re: Performance JPA Silvio <silvio@internet.com> - 2015-11-02 14:23 +0100
Re: Performance JPA Cecil Westerhof <Cecil@decebal.nl> - 2015-11-03 07:52 +0100
Re: Performance JPA Martin Gregorie <martin@address-in-sig.invalid> - 2015-11-03 11:16 +0000
Re: Performance JPA Cecil Westerhof <Cecil@decebal.nl> - 2015-11-03 19:11 +0100
Re: Performance JPA Martin Gregorie <martin@address-in-sig.invalid> - 2015-11-03 19:15 +0000
Re: Performance JPA Cecil Westerhof <Cecil@decebal.nl> - 2015-11-04 09:28 +0100
Re: Performance JPA Cecil Westerhof <Cecil@decebal.nl> - 2015-11-10 08:07 +0100
Re: Performance JPA Silvio <silvio@internet.com> - 2015-11-10 10:35 +0100
Re: Performance JPA Cecil Westerhof <Cecil@decebal.nl> - 2015-11-11 06:20 +0100
Re: Performance JPA Arne Vajhøj <arne@vajhoej.dk> - 2015-11-11 09:32 -0500
Re: Performance JPA Arne Vajhøj <arne@vajhoej.dk> - 2015-11-10 19:56 -0500
Re: Performance JPA Cecil Westerhof <Cecil@decebal.nl> - 2015-11-11 06:50 +0100
Re: Performance JPA Martin Gregorie <martin@address-in-sig.invalid> - 2015-11-11 12:17 +0000
Re: Performance JPA Arne Vajhøj <arne@vajhoej.dk> - 2015-11-11 09:30 -0500
Re: Performance JPA Cecil Westerhof <Cecil@decebal.nl> - 2015-11-11 23:20 +0100
Re: Performance JPA Cecil Westerhof <Cecil@decebal.nl> - 2015-11-11 23:11 +0100
Re: Performance JPA Arne Vajhøj <arne@vajhoej.dk> - 2015-11-11 19:10 -0500
Re: Performance JPA Cecil Westerhof <Cecil@decebal.nl> - 2015-11-12 07:27 +0100
Re: Performance JPA Cecil Westerhof <Cecil@decebal.nl> - 2015-11-13 08:30 +0100
Re: Performance JPA Silvio <silvio@internet.com> - 2015-11-13 10:45 +0100
Re: Performance JPA Cecil Westerhof <Cecil@decebal.nl> - 2015-11-13 11:06 +0100
Re: Performance JPA Silvio <silvio@internet.com> - 2015-11-13 13:36 +0100
Re: Performance JPA Cecil Westerhof <Cecil@decebal.nl> - 2015-11-20 09:04 +0100
Re: Performance JPA Arne Vajhøj <arne@vajhoej.dk> - 2015-11-13 21:46 -0500
Re: Performance JPA Cecil Westerhof <Cecil@decebal.nl> - 2015-11-20 09:09 +0100
Re: Performance JPA Arne Vajhøj <arne@vajhoej.dk> - 2015-11-03 20:35 -0500
Re: Performance JPA Cecil Westerhof <Cecil@decebal.nl> - 2015-11-04 09:35 +0100
Re: Performance JPA Arne Vajhøj <arne@vajhoej.dk> - 2015-11-07 22:09 -0500
Re: Performance JPA Silvio <silvio@internet.com> - 2015-11-03 12:29 +0100
Re: Performance JPA Cecil Westerhof <Cecil@decebal.nl> - 2015-11-03 19:23 +0100
Re: Performance JPA Arne Vajhøj <arne@vajhoej.dk> - 2015-11-03 20:44 -0500
Re: Performance JPA Cecil Westerhof <Cecil@decebal.nl> - 2015-11-04 09:48 +0100
Re: Performance JPA Silvio <silvio@internet.com> - 2015-11-04 10:23 +0100
Re: Performance JPA Cecil Westerhof <Cecil@decebal.nl> - 2015-11-04 11:27 +0100
Re: Performance JPA Silvio <silvio@internet.com> - 2015-11-04 12:42 +0100
Re: Performance JPA Arne Vajhøj <arne@vajhoej.dk> - 2015-11-07 22:18 -0500
Re: Performance JPA Silvio <silvio@internet.com> - 2015-11-09 10:43 +0100
Re: Performance JPA Cecil Westerhof <Cecil@decebal.nl> - 2015-11-20 09:13 +0100
Re: Performance JPA Arne Vajhøj <arne@vajhoej.dk> - 2015-11-07 22:12 -0500
Re: Performance JPA Silvio <silvio@internet.com> - 2015-11-09 10:22 +0100
Re: Performance JPA Arne Vajhøj <arne@vajhoej.dk> - 2015-11-10 21:35 -0500
Re: Performance JPA Silvio <silvio@internet.com> - 2015-11-11 11:29 +0100
Re: Performance JPA Arne Vajhøj <arne@vajhoej.dk> - 2015-11-03 20:42 -0500
Re: Performance JPA Cecil Westerhof <Cecil@decebal.nl> - 2015-11-04 11:19 +0100
Re: Performance JPA Arne Vajhøj <arne@vajhoej.dk> - 2015-11-07 22:05 -0500
Re: Performance JPA Arne Vajhøj <arne@vajhoej.dk> - 2015-11-02 20:08 -0500
Re: Performance JPA Cecil Westerhof <Cecil@decebal.nl> - 2015-11-03 07:55 +0100
Re: Performance JPA Arne Vajhøj <arne@vajhoej.dk> - 2015-11-03 20:45 -0500
Re: Performance JPA Lew <lewbloch@gmail.com> - 2015-11-16 14:43 -0800
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