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From: Cecil Westerhof <Cecil@decebal.nl>
Newsgroups: comp.lang.java.programmer
Subject: Re: From Hibernate to straight JPA
Date: Sat, 11 Jul 2015 21:06:09 +0200
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On Saturday 11 Jul 2015 16:56 CEST, Jeff Higgins wrote:

> On 07/10/2015 02:13 PM, Cecil Westerhof wrote:
>> We are asked to change some software. At the moment one of the
>> things that has to be replaced is Hibernate. They want to use
>> straight JPA, so it is easy to switch from Hibernate, to openJPA,
>> to …
>>
>> One of the annotations that is used is:
>> @NotEmpty(message = "Field is not filled")
>> with the import:
>> import org.hibernate.validator.constraints.NotEmpty;
>>
>> My college wants to use:
>> @NotNull(message = "Field is not filled")
>> @Size(message = "Field is not filled", min = 1)
>>
>> I do not like this. It certainly is not DRY. (It is used hundreds
>> of times.) I prefer to define our own NotEmpty. But I have never
>> worked with annotations. How to do this?
>>
>> Also what is a good resource to learn about JPA and annotations?
>>
>
> Since no response so far I'll throw in my search results.
> May be bunk as I'm not a JPA or JavaEE user.
>
> <http://beanvalidation.org/1.1/>
> <http://openjpa.apache.org/bean-validation-primer.html>
> <http://lmgtfy.com/?q=custom+bean+validation>

I did find a 20 links, but found it a ‘little’ overwhelming. Did not
find you first two links. Added them to my list.

Thanks.

-- 
Cecil Westerhof
Senior Software Engineer
LinkedIn: http://www.linkedin.com/in/cecilwesterhof