I\'m having trouble figuring out how to create unique key names for my online election app.Here is a typical set of relevant entities:
I am building an app based on google app engine (Java) using JDO for persist开发者_StackOverflow中文版ence.
I am trying to wrap my head around Entity Groups in Google AppEngine. I understand them in general, but since it sounds like you can not change the relationships once the object is created AND I have
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