About REST

http://stackoverflow.com/questions/1619152/how-to-create-rest-urls-without-verbs/1619677#1619677

Test Google Datastore with Places REST service

https://code.google.com/p/app-engine-datastore/source/browse/#svn%2Ftrunk

http://places-test-datastore.appspot.com/

http://googcloudlabs.appspot.com/codeLabExercise0.html

The REST java class

https://code.google.com/p/app-engine-datastore/source/browse/trunk/Places/src/org/moyakarta/rest/PlaceService.java

URLS:

http://places-test-datastore.appspot.com/places/count

http://places-test-datastore.appspot.com/places/querycount?fromLat=49.39&toLat=49.41&fromLng=32.02&toLng=32.07&sort=hash

ERROR: can't have inequality filters on different properties: lat and lng

http://places-test-datastore.appspot.com/places/querycount?fromLat=49.39&toLat=49.41&sort=hash

ERROR: inequality filter property and first sort order must be the same: lat and hash

http://places-test-datastore.appspot.com/places/querycount?fromLat=49.39&toLat=49.41&sort=lat

Results: In long time (1min and 1000 PUT iteration) multi threading datastore slows and gets connection timout error.