[hibernate-issues] [Hibernate-JIRA] Commented: (EJB-255) Remoting capabilities

[Emmanuel Bernard (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/EJB-255?page=comments#action_25556 ] 

Emmanuel Bernard commented on EJB-255:
--------------------------------------

Yes this is a class of problem we are thinking about for a long time now.

But it can be solved by either:
 - a regular JDBC call from your "client" to the DB (ie your client talk to the DB)
 - a "remote" JDBC (remote JDBC driver) call if you're concerned about the number of concurrent DB connections

The remote solutions (Remote JDBC or remote EM) put some interesting distributed transaction challenges into the equation.

Remember that an ORM already tries to minimize traffic / nbr of roundtrips between the application and the DB, why would you want to duplicate that effort in another layer.

> Remoting capabilities
> ---------------------
>
>          Key: EJB-255
>          URL: http://opensource.atlassian.com/projects/hibernate/browse/EJB-255
>      Project: Hibernate Entity Manager
>         Type: New Feature

>     Reporter: Dimitry Voytenko

>
>
> I came across Kodo's implementation of remote persistent managers for both JPA and JDO:
> http://www.solarmetric.com/Software/Documentation/3.2.0RC2/docs/ref_guide_remote.html
> http://www.solarmetric.com/Software/Documentation/3.2.0RC2/docs/ref_guide_remotepm.html
> The solution looks pretty ellegant. The main idea behind it is that server and client communicate b/w each other using object graphs (no proxies and no object serialization required) and thus working with JDO/JPA objects on client looks exactly the same as on the server, removing necessity of DTO objects in the majority of cases.
> Have you ever thought about including similar functionality for Hibernate? I do believe it could be a great peformance booster for many types of applications.

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