Are requests by keys strongly consistent ?

[Salomon Brys]

Hi there,

I wonder : it is stated in the datastore documentation that only ancestor queries are strongly consistent.

But what about request by key ?

I have noticed that both these lines give the same result :

1/ ofy().load().key(usrKey).get();

2/ ofy().load().type(User.class).ancestor(usrKey).filterKey(usrKey).first().get();

The first is a simple load by key while the second is an ancestor query.

I know (by google's documentation) that the second is strongly consistent, which means that if the entity has just been modified, the result should be the modified, last version.

So what about the load-by-key consistency ?

Thanks ;)

Salomon BRYS

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Salomon BRYS | Architecte Logiciel | Chief Geek Officer
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[Jeff Schnitzer]

Just like ancestor queries, load-by-key is strongly consistent as long as you don't set ofy().consistency(Consistency.EVENTUAL).

Jeff

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