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Re: App Engine supports Java
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Re: App Engine supports Java

  • Subject: Re: App Engine supports Java
  • From: Gavin Eadie <email@hidden>
  • Date: Wed, 8 Apr 2009 19:41:42 -0400
On Wed, Apr 8, 2009 at 1:30 PM, David Holt <email@hidden> wrote:
I found this little snippet from way back in 03:

Damon Clinkscales's "Object Persistence Approaches" presentation further compared JDO and EJB with WebObjects's Enterprise Objects Framework (EOF). EOF is a third-party object persistence framework library owned by Apple and provides the technology behind the Apple e-commerce Website. Since EOF is a pure Java library, it does not require complex containers (EJB) or byte code post-processors (JDO). EOF provides access to the generated raw SQL, and adaptors can provide access to nonrelational datastores. However, EOF is a nonstandard vendor-specific technology. It requires the developer to learn the proprietary API and creates vendor lock-in.

http://www.javaworld.com/javaworld/jw-03-2003/jw-0314-nfjs.html?page=3

So it sounds like a specific adaptor will have to be created for the Google Datastore?


The blog associated with the new Google App Java feature contained this one entry today:

Thomas Mueller  
View profile  
 More options Apr 8, 4:52 pm
Java Database Connectivity (JDBC): "Not supported" is technically not 
correct. Better would be: "Not supported by Google". Reason: the APIs 
are there, and using third-party in-memory databases such as the H2 
Database Engine (which I write) or HSQLDB work. I plan to write an 
open souce datastore to JDBC wrapper so that people can use the JDBC 
API directly via frameworks that use the JDBC API.
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References: 
 >App Engine supports Java (From: Anjo Krank <email@hidden>)
 >Re: App Engine supports Java (From: Guido Neitzer <email@hidden>)
 >Re: App Engine supports Java (From: David Holt <email@hidden>)

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