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ARROW-380: [Java] optimize null count when serializing vectors#207

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zeapo wants to merge 9 commits intoapache:masterapache/arrow:masterfrom zeapo:ARROW-380zeapo/arrow:ARROW-380Copy head branch name to clipboard

+99-9

Conversation Commits9 (9)Checks Files changed

Commits

Commits on Dec 15, 2016

Add methods to count the number null values in the vector
zeapo
committed
use getNullCount() rather than isNull
zeapo
committed
fix wrong value returned by the method
zeapo
committed
fix the comment
zeapo
committed
test the null count byte by byte and the odd length case
zeapo
committed
use the valueCount as basis for counting nulls rather than allocated bytes
zeapo
committed
the used size is not the same as the allocated size
zeapo
committed
implement the base case of getNullCount()
zeapo
committed
implement missing getNullCount implementation for NullableMapVector
zeapo
committed

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