Package org.apache.wayang.core.optimizer
package org.apache.wayang.core.optimizer
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ClassesClassDescriptionThis
OptimizationContext
implementation aggregates severalOptimizationContext
s and exposes theirOptimizationContext.OperatorContext
in an aggregated manner.This implementation ofOptimizationContext
represents a direct mapping fromOptimizationContext.OperatorContext
to executions of the respectiveOperator
s.Manages contextual information required during the optimization of aWayangPlan
.Utility methods for the optimization process.An value representation that is capable of expressing uncertainty.An estimate that is capable of expressing uncertainty.This class checks aWayangPlan
for several sanity criteria:Subplan
s must only be used as top-levelOperator
ofOperatorAlternative.Alternative
Subplan
s must contain more than oneOperator