com.tangosol.util

Class SimpleQueryRecord.PartialResult.TraceStep

java.lang.Object

com.tangosol.util.SimpleQueryRecord.PartialResult.Step

com.tangosol.util.SimpleQueryRecord.PartialResult.AbstractRecordableStep

com.tangosol.util.SimpleQueryRecord.PartialResult.TraceStep

All Implemented Interfaces:

ExternalizableLite, PortableObject, QueryRecord.PartialResult.RecordableStep, QueryRecord.PartialResult.Step, QueryRecord.PartialResult.TraceStep, Serializable

Enclosing class:

SimpleQueryRecord.PartialResult

public class SimpleQueryRecord.PartialResult.TraceStep
extends SimpleQueryRecord.PartialResult.AbstractRecordableStep
implements QueryRecord.PartialResult.TraceStep

Simple QueryRecord.PartialResult.TraceStep implementation.

Field Summary

Fields inherited from class com.tangosol.util.SimpleQueryRecord.PartialResult.AbstractRecordableStep

m_mapSteps

Fields inherited from class com.tangosol.util.SimpleQueryRecord.PartialResult.Step

m_cMillis, m_listSubSteps, m_nEfficiency, m_nSizeIn, m_nSizeOut, m_setIndexLookupRecords, m_sFilter

Constructor Summary

Constructors

Constructor and Description
TraceStep(Filter filter) Construct a TraceStep

Method Summary

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 cMillisElapsed) Record the time spent evaluating the filter or applying an index.
void	recordPostFilterKeys(int nSizeOut) Record the number of keys remaining after filter evaluation.

Methods inherited from class com.tangosol.util.SimpleQueryRecord.PartialResult.AbstractRecordableStep

recordExtractor, recordPreFilterKeys

Methods inherited from class com.tangosol.util.SimpleQueryRecord.PartialResult.Step

getDuration, getEfficiency, getFilterDescription, getIndexLookupRecords, getPostFilterKeySetSize, getPreFilterKeySetSize, getSteps, isMatching, merge, readExternal, readExternal, writeExternal, writeExternal

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.tangosol.util.QueryRecord.PartialResult.RecordableStep

recordExtractor, recordPreFilterKeys

Methods inherited from interface com.tangosol.util.QueryRecord.PartialResult.Step

getDuration, getEfficiency, getFilterDescription, getIndexLookupRecords, getPostFilterKeySetSize, getPreFilterKeySetSize, getSteps

Constructor Detail

TraceStep

public TraceStep(Filter filter)

Construct a TraceStep

Parameters:

filter - the step filter

Method Detail

recordPostFilterKeys

public void recordPostFilterKeys(int nSizeOut)

Record the number of keys remaining after filter evaluation. This method may be called repeatedly on the same step instance during the scan phase of a query trace plan operation. Each call will add to the total recorded post-evaluation key set size for this step.

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).

Specified by:

recordPostFilterKeys in interface QueryRecord.PartialResult.TraceStep

Parameters:

nSizeOut - the number of keys remaining after filter evaluation

recordDuration

public void recordDuration(long cMillisElapsed)

Record the time spent evaluating the filter or applying an index. This method may be called repeatedly on the same step instance during the scan phase of a query trace plan operation. Calling this method repeatedly will add to the total duration recorded for this step.

Specified by:

recordDuration in interface QueryRecord.PartialResult.TraceStep

Parameters:

cMillisElapsed - the number of milliseconds spent evaluating the filter

ensureStep

public QueryRecord.PartialResult.TraceStep ensureStep(Filter filter)

Ensure an inner nested trace step for the given filter. If there is no inner nested step associated with the given filter then a new step is created.

Specified by:

ensureStep in interface QueryRecord.PartialResult.TraceStep

Parameters:

filter - the filter to associate the new step with

Returns:

the inner nested step associated with the given filter