[opencms-dev] Connecting to a extern database

Rafael Braza Polanco rafaelbrazapolanco at gmail.com
Tue May 22 19:48:24 CEST 2012


Thank you for your answer Georgi, I am going to read the OpenJPA's
documentation.

Best regards
Rafael

2012/5/22 Georgi Naplatanov <gosho at oles.biz>

> If your database schema is ready, you can use OpenJPA's reverse mapping
> tool [1] to generate your persistence classes. It works well, but you have
> to adjust class names for multi-column primary keys and add @Lob annotation
> for binary fields and do not forget to use build time enhancement.
>
> Using cache, database connection pool and prepared statements improve
> performance.
>
> Best regards
> Georgi
>
> [1] - http://openjpa.apache.org/**builds/2.2.0/apache-openjpa/**
> docs/manual.html#ref_guide_pc_**reverse<http://openjpa.apache.org/builds/2.2.0/apache-openjpa/docs/manual.html#ref_guide_pc_reverse>
>
>
> On 05/22/2012 06:26 PM, Rafael Braza Polanco wrote:
>
>> I'm going to look for information about how to use OpenJPA.
>>
>> Thank you.
>>
>>
>>
>> 2012/5/22 Georgi Naplatanov <gosho at oles.biz <mailto:gosho at oles.biz>>
>>
>>
>>    Hi Rafael.
>>
>>    You can use whatever suit your needs. OpenCms 8.x includes OpenJPA
>>    2.x as JPA provider, but it's possible to use other JPA providers
>>    (like Hibernate) as well.
>>
>>    Best regards
>>    Georgi
>>
>>
>>    On 05/22/2012 05:11 PM, Rafael Braza Polanco wrote:
>>
>>        Hello list,
>>
>>        I would like to connect to a schema in MySQL, not OpenCMS's schema,
>>        another one I have created.
>>        Can I do it or maybe I need to use Hibernate, JPA?
>>
>>        Thank you.
>>
>>
>>
>>
>>
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>> --
>> Saludos.
>>
>>
>>
>>
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Saludos.
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