public abstract class AbstractDistinctValuesCollector<GC extends AbstractDistinctValuesCollector.GroupCount<?>> extends SimpleCollector
Modifier and Type | Class and Description |
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static class |
AbstractDistinctValuesCollector.GroupCount<GROUP_VALUE_TYPE>
Returned by
getGroups() ,
representing the value and set of distinct values for the group. |
Constructor and Description |
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AbstractDistinctValuesCollector() |
Modifier and Type | Method and Description |
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abstract List<GC> |
getGroups()
Returns all unique values for each top N group.
|
boolean |
needsScores()
Indicates if document scores are needed by this collector.
|
collect, doSetNextReader, getLeafCollector, setScorer
public abstract List<GC> getGroups()
public boolean needsScores()
Collector
true
if scores are needed.Copyright © 2000–2017 The Apache Software Foundation. All rights reserved.