Just to add on to point 6. Since the entity in Cayenne can be programmatically construct, it should be possible to read OFBiz's entity files.
james_sg wrote: > > Hi all, > > Apache Cayenne has the closest match to OFBiz Entity Engine. > > A few points about Cayenne: > 1. Cayenne has generic object while OFBiz has Generic Value. > 2. Cayene has DerivedDbEntity (depreciating) to OFBiz's View Entity. > 3. Cayenne has a gui modeler to map the database. > 4. Cayenne supports applications running in cluster. > 5. OFBiz requires the developer to explicitly save each generic value. In > Cayenne, the developer to save the Generic Object and any associated > Generic Objects are implicitly saved. > 6. Like OFBiz, the database definition files for Cayenne can be separated > and grouped under domains and combined at runtime. > 7. Cayenne gui modeler has function to merge database changes, but OFBiz > does that automatically. > > If there is a need or business case to support the swapping of the entity > engine, it should support similar ORM and follows the api used in OFBiz. > > Also note there is a JPA standard for ORM that uses POJO. > > Regards, > James > > > Scott Gray-2 wrote: >> >> Hi Chris, >> >> Could you explain how you envisage swapping the entity engine with >> hibernate considering one uses Maps (GenericValue) and the other uses >> POJOs to represent data? >> >> Thanks >> Scott >> >> HotWax Media >> http://www.hotwaxmedia.com >> >> On 18/09/2010, at 1:32 AM, chris snow wrote: >> >>> I would see entity engine and service engine as separate modules. >>> >>> Each module should have clearly defined api defining how they interact >>> with the outside world. A clearly defined api will facilitate >>> swapping parts. For example, the entity engine could be replaced with >>> a hibernate based engine as long as the api was implemented. >>> >>> (also there would be a module for Birt) >>> >>> On Fri, Sep 17, 2010 at 2:06 PM, BJ Freeman <bjf...@free-man.net> wrote: >>>> to me framework is what has not ability to interact with the real >>>> world, >>>> like party, but just the tools. >>>> so base layer is Entity and service engine. >>>> Next layer is Webapp and Widgets. >>>> next layer is Webtools >>>> next layer is security and common >>>> >>>> A person should be able to enable those things that they want for their >>>> application. >>>> >>>> >>>> >> >> > > -- View this message in context: http://ofbiz.135035.n4.nabble.com/why-we-should-have-a-10-04-standalone-framework-release-tp1568563p2544818.html Sent from the OFBiz - User mailing list archive at Nabble.com.
