Package org.apache.wayang.core.optimizer

Class Summary

Class	Description
AggregateOptimizationContext	This OptimizationContext implementation aggregates several OptimizationContexts and exposes their OptimizationContext.OperatorContext in an aggregated manner.
DefaultOptimizationContext	This implementation of OptimizationContext represents a direct mapping from OptimizationContext.OperatorContext to executions of the respective Operators.
OptimizationContext	Manages contextual information required during the optimization of a WayangPlan.
OptimizationUtils	Utility methods for the optimization process.
ProbabilisticDoubleInterval	An value representation that is capable of expressing uncertainty.
ProbabilisticIntervalEstimate	An estimate that is capable of expressing uncertainty.
SanityChecker	This class checks a WayangPlan for several sanity criteria: Subplans must only be used as top-level Operator of OperatorAlternative.Alternative Subplans must contain more than one Operator