This is already being done:
http://code.google.com/p/gaevfs/
I recently adding a CachingDatastoreService class that implements a
write-behind cache using task queues (instead of cron), which will be
included in the next release. The code is available now in SVN:
http://code.google.com/p/gaevfs/source/browse/trunk/src/com/newatlanta/appengine/datastore/CachingDatastoreService.java
GaeVFS supports two "filesystem"-like APIs, one based on Apache
Commons VFS (http://commons.apache.org/vfs/) and another based on the
JDK7 NIO2 project (http://openjdk.java.net/projects/nio/). The latter
API will also be in the next GaeVFS release, and the code is now in
SVN:
http://code.google.com/p/gaevfs/source/browse/trunk/src/com/newatlanta/appengine/nio/
Vince
On Sat, Sep 12, 2009 at 2:53 PM, Larry Cable <larry.ca...@gmail.com> wrote:
>
> I am wondering about writing a Servlet that would form/multi-part
> upload large files and cache them in memcache then use the
> cron API to "trickle" persist them into the DS over time ...
>
> could maybe even get adventurous and put a "filesystem"-like API
> over the cache ...
>
> lemme know if anyone would be interested in this ... if there is
> enough interest I'll put something together and open source it.
>
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