Great news! Thx!
Sent from my iPhone
On Feb 11, 2011, at 5:28 PM, "Ikai Lan (Google)" <[email protected]
> wrote:
Hi Stephen,
Good observation! You're right. We don't need this property anymore.
We'll update the docs.
--
Ikai Lan
Developer Programs Engineer, Google App Engine
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On Fri, Feb 11, 2011 at 9:12 AM, Stephen Johnson <[email protected]
> wrote:
Hi all,
I'm wondering if the descending indexes on keys for Java is still
required since the introduction of the __scatter__ property. The
documentation still has:
The entity to be mapped must have a descending index on key. There
is support for guessing the key range in the Python implementation,
and we plan to add that same strategy to the Java implementation.
Sharding is currently done by splitting the space of keys
lexicographically. For instance, suppose you have the keys 'a',
'ab', 'ac', and 'e' and you request two splits. The framework will
find that the first key is 'a' and the last key is 'e'. 'a' is the
first letter and 'e' is the fifth, so the middle is 'c'. Therefore,
the two splits are ['a'...'c') and ['c'...), with the first split
containing 'a', 'ab', and 'ac', and the last split only containing
'e'.
But I'm hoping someone knows if this has been removed since
__scatter__ property seems to be the new splitting/sharding method.
Thanks,
Stephen
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