org.apache.solr.analytics.statistics

Class UniqueStatsCollector

java.lang.Object

org.apache.solr.analytics.statistics.AbstractDelegatingStatsCollector

org.apache.solr.analytics.statistics.UniqueStatsCollector

All Implemented Interfaces:

StatsCollector

public class UniqueStatsCollector
extends AbstractDelegatingStatsCollector

UniqueValueCounter computes the number of unique values.

Field Summary

Fields inherited from class org.apache.solr.analytics.statistics.AbstractDelegatingStatsCollector

delegate, statsList

Constructor Summary

Constructors

Constructor and Description
UniqueStatsCollector(StatsCollector delegate)

Method Summary

Modifier and Type	Method and Description
void	collect(int doc) Collect values from the value source and add to statistics.
void	compute() After all documents have been collected, this method should be called to finalize the calculations of each statistic.
Comparable	getStat(String stat) Return the value of the given statistic.

Methods inherited from class org.apache.solr.analytics.statistics.AbstractDelegatingStatsCollector

delegate, getFunction, getStatsList, getValue, setNextReader, valueSourceString

Methods inherited from class java.lang.Object

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

Constructor Detail

UniqueStatsCollector

public UniqueStatsCollector(StatsCollector delegate)

Method Detail

collect

public void collect(int doc)

Description copied from interface: StatsCollector

Collect values from the value source and add to statistics.

Specified by:

collect in interface StatsCollector

Overrides:

collect in class AbstractDelegatingStatsCollector

Parameters:

doc - Document to collect from

getStat

public Comparable getStat(String stat)

Description copied from interface: StatsCollector

Return the value of the given statistic.

Parameters:

stat - the stat

Returns:

a comparable

compute

public void compute()

Description copied from interface: StatsCollector

After all documents have been collected, this method should be called to finalize the calculations of each statistic.