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| Newsgroups | comp.lang.java.programmer |
| Date | Mon, 16 Nov 2015 14:42:28 -0800 (PST) |
| In-Reply-To | <8761162oln.fsf@Equus.decebal.nl> |
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| Subject | Re: What to tell in a talk about JPA |
| From | Lew <lewbloch@gmail.com> |
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On Friday, November 13, 2015 at 2:47:03 AM UTC-8, Cecil Westerhof wrote: > I am in the middle of migrating a series of applications. One thing is > that JDBC has to be replaced with JPA. I am going to give a > presentation about this on T-DOSE. (The biggest Open Source event in > the Netherlands.) This was/is my first time that I work with JPA. So I > am far from being an expert. What are things that are useful to > mention? The talk is three quarters of an hour and beside JPA I will > also talk about the pitfalls we experienced during the migration. The main thing is that JPA is NOT A DATA-MANIPULATION TECHNIQUE. It is an object-manipulation technique. The single biggest mistake is to use JPA as a wrapper for SQL rather than a persistence mechanism for objects. The second mistake is to keep a 'DataManager' around too long. They should be ephemeral. -- Lew
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What to tell in a talk about JPA Cecil Westerhof <Cecil@decebal.nl> - 2015-11-13 11:14 +0100 Re: What to tell in a talk about JPA Arne Vajhøj <arne@vajhoej.dk> - 2015-11-13 21:49 -0500 Re: What to tell in a talk about JPA Lew <lewbloch@gmail.com> - 2015-11-16 14:42 -0800
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