public static interface QueryRecord.PartialResult.TraceStep extends QueryRecord.PartialResult.RecordableStep
QueryRecord.PartialResult.RecordableStep
that provides the ability to record the information associated with the actual cost of evaluating a filter as part of a query operation.Modifier and Type | Method and Description |
---|---|
QueryRecord.PartialResult.TraceStep |
ensureStep(Filter filter)
Ensure an inner nested trace step for the given filter.
|
void |
recordDuration(long cMillis)
Record the time spent evaluating the filter or applying an index.
|
void |
recordPostFilterKeys(int cKeys)
Record the number of keys remaining after filter evaluation.
|
recordExtractor, recordPreFilterKeys
getDuration, getEfficiency, getFilterDescription, getIndexLookupRecords, getPostFilterKeySetSize, getPreFilterKeySetSize, getSteps
void recordPostFilterKeys(int cKeys)
During the scan phase of a query trace plan operation, each entry is evaluated against the filter individually. Each call to trace
should record a key set count of 1
and a result key set count of fResult ? 1 : 0
where fResult
is the result of a call to EntryFilter.evaluateEntry(Map.Entry)
.
cKeys
- the number of keys remaining after filter evaluationvoid recordDuration(long cMillis)
cMillis
- the number of milliseconds spent evaluating the filterQueryRecord.PartialResult.TraceStep ensureStep(Filter filter)
filter
- the filter to associate the new step with