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I'm hitting what appears (to me) strange behavior when I pull data from the google datastore over JDO. In particular, the query executes quickly (say 100 ms), but finding the size of the resulting List< takes about one second! Indeed, whatever operation I try to perform on the resulting list takes…
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http://code.google.com/appengine/docs/python/tools/uploadingdata.html is not clearly understand. Where i should call the bulkloader.py or appcfg.py? Should i import the csv file to local Google App Engine SDK first? How to keep the upload and download data process in existing application for datastore…
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I'm using Google Web Toolkit with java and google datastore as database.
The entity class has arraylist and on trying to retrieve the data from data base I'm getting the exception:
Type 'org.datanucleus.sco.backed.ArrayList' was not included in the set of types which can be serialized by this SerializationPolicy…
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if I have a Customer object with a list of orders, declared using the db.ReferenceProperty
after a while I may have huge amount of orders in there, if I pull the Customer object would I be in danger of pulling the complete set of orders?
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I'm working on a flash game written in pure actionscript 3.0 in Flex.
I've just finished implementing replays for the game, but want to store the top 10 hiscores' replay data on my google-app-engine'd website.
I'm using Java for the app-engine stuff in Eclipse in java but I have no idea how to…
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