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Interface Summary | |
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Accumulator | An Accumulator is the processor for each section of a group, so there is one Accumulator for each group key. |
Aggregator | An Aggregator is the processor for the whole result stream. |
Class Summary | |
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AggAvg | |
AggAvgDistinct | |
AggCount | |
AggCountDistinct | |
AggCountVar | |
AggCountVarDistinct | |
AggGroupConcat | |
AggGroupConcatDistinct | |
AggMax | |
AggMaxDistinct | |
AggMin | |
AggMinDistinct | |
AggNull | The null aggregate (which can't be written in SPARQL) calculates nothering but does help remember the group key |
AggregatorBase | Aggregate that does everything except the per-group aggregation that is needed for each operation |
AggregatorFactory | |
AggSample | |
AggSampleDistinct | |
AggSum | |
AggSumDistinct |
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