[hibernate-issues] [Hibernate-JIRA] Commented: (ANN-480) Query by Example in annotation form

[Emmanuel Bernard (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/ANN-480?page=comments#action_25423 ] 

Emmanuel Bernard commented on ANN-480:
--------------------------------------

I had a look at your framework. 
The idea is interesting but from your example, I don't see how writing this extra class + annotated its properties is a tremendous simplification or dev speed up compared to the equivalent code in your existing DAO using the regular QBE API with Person as a parameter. And if you need to inject the ability to play with regular QBC criterions and define everything through annotations. I'm concerned about the verbosity.
WDYT?

> Query by Example in annotation form
> -----------------------------------
>
>          Key: ANN-480
>          URL: http://opensource.atlassian.com/projects/hibernate/browse/ANN-480
>      Project: Hibernate Annotations
>         Type: New Feature

>  Environment: jdk >= 1.5, hibernate >= 3, ant > 1.5
>     Reporter: M N G
>     Priority: Minor
>  Attachments: searchable.tar.gz
>
>
> Interested in adsorbing this framework I built?
> Takes all the work out of creating a Criteria. Similar to how Query by Example, this small framework I wrote builds Criteria from annotated pojos. 
> A pojo is annotated to map hibernate bean mappings to methods. The annotated pojo's class is registered in the Registry, which uses reflecting to define the signatures to create the Criteria for the pojo. The values to search for are set in the pojo and the pojo is passed to the Builder. The Builder uses the registry to create the Criteria delimited by the values in the annotated pojo.
> Not entirely mature yet (does not support all Criteria Restrictions) and the handling of sorting results is a bit unwieldy. It works tho.
> Attached is a copy of the framework. It includes a unit test that kick starts a HSQL database to demostrate the framework.

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