Class PopulationStandardDeviationAggregateFactory
java.lang.Object
org.eclipse.rdf4j.query.algebra.evaluation.function.aggregate.stdev.PopulationStandardDeviationAggregateFactory
- All Implemented Interfaces:
AggregateFunctionFactory
@Experimental
public class PopulationStandardDeviationAggregateFactory
extends Object
implements AggregateFunctionFactory
AggregateFunctionFactory
implementation that provides AggregateFunction
used for processing
population standard deviation.- Author:
- Tomas Kovachev t.kovachev1996@gmail.com
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Constructor Summary
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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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Constructor Details
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PopulationStandardDeviationAggregateFactory
public PopulationStandardDeviationAggregateFactory()
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Method Details
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getIri
- Specified by:
getIri
in interfaceAggregateFunctionFactory
- Returns:
- the identifier associated with given function
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buildFunction
Description copied from interface:AggregateFunctionFactory
Builds an aggregate function with input evaluation step- Specified by:
buildFunction
in interfaceAggregateFunctionFactory
- Parameters:
evaluationStep
- used to process values from an iterator's binding set- Returns:
- an aggregate function evaluator
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getCollector
- Specified by:
getCollector
in interfaceAggregateFunctionFactory
- Returns:
- result collector associated with given function type
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