Package com.tangosol.util

Interface QueryRecord.PartialResult.RecordableStep

All Superinterfaces:
QueryRecord.PartialResult.Step
All Known Subinterfaces:
QueryRecord.PartialResult.ExplainStep, QueryRecord.PartialResult.TraceStep
All Known Implementing Classes:
SimpleQueryRecord.PartialResult.AbstractRecordableStep, SimpleQueryRecord.PartialResult.ExplainStep, SimpleQueryRecord.PartialResult.TraceStep
Enclosing interface:
QueryRecord.PartialResult
public static interface QueryRecord.PartialResult.RecordableStep extends QueryRecord.PartialResult.Step
A QueryRecord.RecordableStep is a step that provides the ability to record the cost of evaluating a filter as part of a query operation.

  • Method Details

    • recordPreFilterKeys

      void recordPreFilterKeys(int cKeys)
      Record the number of keys passed to the filter for evaluation. This method may be called repeatedly on the same step instance. Each call will add to the total recorded pre-evaluation key set size for this step.

      During the scan phase of a query trace operation, each entry is individually evaluated against the filter. Each call to trace should record a key count of 1.

      Parameters:
      cKeys - the number of keys to be evaluated

    • recordExtractor

      void recordExtractor(ValueExtractor extractor)
      Record all relevant index information for any index associated with the given extractor (e.g. index lookup and range scan). This method may be called multiple times if there is more than one extractor associated with the filter used to create this step.
      Parameters:
      extractor - the extractor associated with the filter for this step