com.atlassian.jira.issue.statistics.util

Class TwoDimensionalTermHitCollector

java.lang.Object

org.apache.lucene.search.SimpleCollector

com.atlassian.jira.issue.statistics.util.TwoDimensionalTermHitCollector

All Implemented Interfaces:

org.apache.lucene.search.Collector, org.apache.lucene.search.LeafCollector

public class TwoDimensionalTermHitCollector
extends org.apache.lucene.search.SimpleCollector

A HitCollector that creates a doc -> term mapping. This is useful for collecting documents where there are a limited number of terms. The caching also ensures that if multiple searches sort on the same terms, the doc -> term mapping is maintained.

This HitCollector can be quite memory intensive, however the cache is stored with a weak reference, so it will be garbage collected.

Since:

v3.11

Constructor Summary

Constructors

Constructor and Description
TwoDimensionalTermHitCollector(TwoDimensionalStatsMap statsMap, FieldVisibilityManager fieldVisibilityManager, ReaderCache readerCache, LuceneFieldSorter aggregateField, FieldManager fieldManager) Update a statsMap, using the values from the aggregateField.

Method Summary

Modifier and Type	Method and Description
void	collect(int i)
void	doSetNextReader(org.apache.lucene.index.LeafReaderContext context)
boolean	needsScores()

Methods inherited from class org.apache.lucene.search.SimpleCollector

getLeafCollector, setScorer

Methods inherited from class java.lang.Object

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

Constructor Detail

TwoDimensionalTermHitCollector

public TwoDimensionalTermHitCollector(TwoDimensionalStatsMap statsMap,
                                      FieldVisibilityManager fieldVisibilityManager,
                                      ReaderCache readerCache,
                                      LuceneFieldSorter aggregateField,
                                      FieldManager fieldManager)

Update a statsMap, using the values from the aggregateField. Example, you can sum the votes.

Parameters:

statsMap - stats map

fieldVisibilityManager - used to determine if the stat fields are visible

readerCache - used to cache stats values at the reader level

aggregateField - lucene field sorter

Method Detail

collect

public void collect(int i)

Specified by:

collect in interface org.apache.lucene.search.LeafCollector

Specified by:

collect in class org.apache.lucene.search.SimpleCollector

doSetNextReader

public void doSetNextReader(org.apache.lucene.index.LeafReaderContext context)

Overrides:

doSetNextReader in class org.apache.lucene.search.SimpleCollector

needsScores

public boolean needsScores()