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JDO - openSQL - hibernate


in our project we have up to 70 database table. It is very exhausting to implement for each table an EJB entity bean, the relationships and their corresponding DTO's. So we are thinking about a tool like hibernate to design our objects once and generate the persistence layer including the relations using xdoclet. Is there any experience using e.g. hibernate with openSQL and integration of hibernate into WebAS? Is there any tool out there generating SAP JDO configuration files easily?

best regards,


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  • Posted on Jun 21, 2004 at 08:28 AM

    This is planned for future versions to include into the product.

    But I cannot tell you when this will happen definitely.

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    • Hi Stefan,

      well, you ask for a strategy. This is still under discussion here at SAP. Different groups prefer different ways.

      The best hint currently is that most developers I know like EJB/JDO most. There is no strategic desision in a way that this is decided by management, before there is any large scale project. And I'm not sure if there ever will be. Things are more going the way that we have to provide ways to be much more productive in development then we can be with EJB technology. Therefore i doubt that we ever see pure EJB projects at SAP, but model driven applications. Those will be developed with the Composit Application Framework currently under construction - This in turn is using EJB's with JDO.



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