org.apache.solr.analytics.function.reduction.data

Class CountCollector.ExpressionCountCollector

java.lang.Object

org.apache.solr.analytics.function.reduction.data.ReductionDataCollector<CountCollector.CountData>

org.apache.solr.analytics.function.reduction.data.CountCollector

org.apache.solr.analytics.function.reduction.data.CountCollector.ExpressionCountCollector

Enclosing class:

CountCollector

public static class CountCollector.ExpressionCountCollector
extends CountCollector

Represents a count(expr) expression. This collects 3 values: docCount - The number of Solr Documents for which the wrapped expression exists. count - The number of values which wrapped expression contains. missing - The number of Solr Documents for which the wrapped expression does not exist.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.solr.analytics.function.reduction.data.CountCollector

CountCollector.CountData, CountCollector.ExpressionCountCollector, CountCollector.TotalCountCollector

Field Summary

Fields inherited from class org.apache.solr.analytics.function.reduction.data.CountCollector

name

Fields inherited from class org.apache.solr.analytics.function.reduction.data.ReductionDataCollector

collectionTargets, ioData, lastingTargets

Constructor Summary

Constructors

Constructor and Description
ExpressionCountCollector(AnalyticsValueStream param)

Method Summary

Modifier and Type	Method and Description
protected void	apply(CountCollector.CountData data) Apply the collected info to the given reduction data.
void	collect() Collect the information from current Solr Document.
long	missing() The number of Solr Documents for which the given analytics expression does not exist.
void	setData(ReductionData data) Finalize the reduction with the collected data stored in the parameter.
void	setMergedData(ReductionData data) Finalize the reduction with the merged data stored in the parameter.
void	submitReservations(Consumer<ReductionDataReservation<?,?>> consumer) Submits the data reservations needed for this data collector.

Methods inherited from class org.apache.solr.analytics.function.reduction.data.CountCollector

count, docCount, getExpressionStr, getName, newData

Methods inherited from class org.apache.solr.analytics.function.reduction.data.ReductionDataCollector

addCollectTarget, addLastingCollectTarget, clearLastingCollectTargets, collectAndApply, dataIO, newDataIO, newDataTarget

Methods inherited from class java.lang.Object

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

Constructor Detail

ExpressionCountCollector

public ExpressionCountCollector(AnalyticsValueStream param)

Method Detail

missing

public long missing()

The number of Solr Documents for which the given analytics expression does not exist.

Returns:

the number of missing values

setMergedData

public void setMergedData(ReductionData data)

Description copied from class: ReductionDataCollector

Finalize the reduction with the merged data stored in the parameter. Once the reduction is finalized, the ReductionFunctions that use this data collector act like regular AnalyticsValue classes that can be accessed through their get<value-type> methods. (FOR CLOUD)

Overrides:

setMergedData in class CountCollector

Parameters:

data - the merged data to compute a reduction for

setData

public void setData(ReductionData data)

Description copied from class: ReductionDataCollector

Finalize the reduction with the collected data stored in the parameter. Once the reduction is finalized, the ReductionFunctions that use this data collector act like regular AnalyticsValue classes that can be accessed through their get<value-type> methods. (FOR SINGLE-SHARD)

Overrides:

setData in class CountCollector

Parameters:

data - the collected data to compute a reduction for

collect

public void collect()

Description copied from class: ReductionDataCollector

Collect the information from current Solr Document.

Overrides:

collect in class ReductionDataCollector<CountCollector.CountData>

apply

protected void apply(CountCollector.CountData data)

Description copied from class: ReductionDataCollector

Apply the collected info to the given reduction data. Should always be called after a ReductionDataCollector.collect() call.

Specified by:

apply in class ReductionDataCollector<CountCollector.CountData>

Parameters:

data - reduction data to apply collected info to

submitReservations

public void submitReservations(Consumer<ReductionDataReservation<?,?>> consumer)

Description copied from class: ReductionDataCollector

Submits the data reservations needed for this data collector.

Overrides:

submitReservations in class CountCollector

Parameters:

consumer - the consumer which the reservations are submitted to