org.zkoss.pivot.impl.calc
Interfaces 
Context
ContextFactory
ContextType
ContextualCalculator
Summarizer
Classes 
AverageSummarizer
CountNumberSummarizer
CountSummarizer
MaxSummarizer
MinMaxContext
MinSummarizer
Numbers
Numbers.MixedTypedNumber
ProductContext
ProductSummarizer
StandardDeviationPSummarizer
StandardDeviationSummarizer
SumCountContext
SumOrCountSummarizer
SumSummarizer
VarianceContext
VariancePSummarizer
VarianceSummarizer