@ Override protected void computeOperatorSpecificDefaultEstimates ( DataStatistics statistics ) { this . estimatedNumRecords = getPredecessorNode ( ) . getEstimatedNumRecords ( ) ; this . estimatedOutputSize = getPredecessorNode ( ) . getEstimatedOutputSize ( ) ; }
Computes the estimated outputs for the data sink . Since the sink does not modify anything it simply copies the output estimates from its direct predecessor .