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| Interface Summary | |
|---|---|
| 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 | |
|---|---|
| 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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