Re: App Engine supports Java
Re: App Engine supports Java
- Subject: Re: App Engine supports Java
- From: Anjo Krank <email@hidden>
- Date: Wed, 8 Apr 2009 19:42:19 +0200
Dunno... basically BigTable is the same as Amazons SimpleDB: a loose
property store with no relations in it. You can model them with some
tricks, though. But it still doesn't make that good of a match with EOF.
I'd rather wonder how they run their "servlets"? Can they keep state?
How?
Cheers, Anjo
Am 08.04.2009 um 19:30 schrieb David Holt:
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?
On 8-Apr-09, at 9:50 AM, Guido Neitzer wrote:
On 8. Apr. 2009, at 07:34 , Anjo Krank wrote:
http://googleappengine.blogspot.com/
WO in the cloud, anyone?
Hmmm. I guess that could be really interesting if there were an EOF
integration for JDO. Will have to look into that. It's definitely
an interesting option.
cug
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