Interface AggregateFunctionFactory
- All Known Implementing Classes:
PopulationStandardDeviationAggregateFactory
,PopulationVarianceAggregateFactory
,StandardDeviationAggregateFactory
,VarianceAggregateFactory
Factory for a registered
AggregateFunction
that is evaluated in the same fashion as standard aggregate
functions e.g.Sum
invalid input: '&' Count
- Author:
- Tomas Kovachev t.kovachev1996@gmail.com
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Method Summary
Modifier and TypeMethodDescriptionbuildFunction
(Function<BindingSet, Value> evaluationStep) Builds an aggregate function with input evaluation stepgetIri()
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Method Details
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getIri
String getIri()- Returns:
- the identifier associated with given function
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buildFunction
Builds an aggregate function with input evaluation step- Parameters:
evaluationStep
- used to process values from an iterator's binding set- Returns:
- an aggregate function evaluator
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getCollector
AggregateCollector getCollector()- Returns:
- result collector associated with given function type
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