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public interface GraphStatisticsHandler
A graph's StatisticsHandler offers access to some statistics about that graph's contents that might be useful for optimisation.
Method Summary | |
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long |
getStatistic(Node S,
Node P,
Node O)
Answer a good estimate of the number of triples that would match the pattern (S, P, O) , or -1 if no good estimate is available. |
Method Detail |
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long getStatistic(Node S, Node P, Node O)
(S, P, O)
, or -1 if no good estimate is available.
The estimate is good until the graph is updated.
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