Package | Description |
---|---|
org.apache.lucene.search.grouping |
This module enables search result grouping with Lucene, where hits
with the same value in the specified single-valued group field are
grouped together.
|
org.apache.lucene.search.grouping.function |
Support for grouping by
ValueSource . |
org.apache.lucene.search.grouping.term |
Support for grouping by indexed terms via
DocValues . |
Modifier and Type | Class and Description |
---|---|
class |
CollectedSearchGroup<T>
Expert: representation of a group in
AbstractFirstPassGroupingCollector ,
tracking the top doc and FieldComparator slot. |
Modifier and Type | Method and Description |
---|---|
Collection<SearchGroup<GROUP_VALUE_TYPE>> |
AbstractFirstPassGroupingCollector.getTopGroups(int groupOffset,
boolean fillFields)
Returns top groups, starting from offset.
|
static <T> Collection<SearchGroup<T>> |
SearchGroup.merge(List<Collection<SearchGroup<T>>> topGroups,
int offset,
int topN,
Sort groupSort)
Merges multiple collections of top groups, for example
obtained from separate index shards.
|
Modifier and Type | Method and Description |
---|---|
static <T> Collection<SearchGroup<T>> |
SearchGroup.merge(List<Collection<SearchGroup<T>>> topGroups,
int offset,
int topN,
Sort groupSort)
Merges multiple collections of top groups, for example
obtained from separate index shards.
|
Constructor and Description |
---|
AbstractSecondPassGroupingCollector(Collection<SearchGroup<GROUP_VALUE_TYPE>> groups,
Sort groupSort,
Sort withinGroupSort,
int maxDocsPerGroup,
boolean getScores,
boolean getMaxScores,
boolean fillSortFields) |
Constructor and Description |
---|
FunctionDistinctValuesCollector(Map<?,?> vsContext,
ValueSource groupSource,
ValueSource countSource,
Collection<SearchGroup<MutableValue>> groups) |
FunctionSecondPassGroupingCollector(Collection<SearchGroup<MutableValue>> searchGroups,
Sort groupSort,
Sort withinGroupSort,
int maxDocsPerGroup,
boolean getScores,
boolean getMaxScores,
boolean fillSortFields,
ValueSource groupByVS,
Map<?,?> vsContext)
Constructs a
FunctionSecondPassGroupingCollector instance. |
Constructor and Description |
---|
TermDistinctValuesCollector(String groupField,
String countField,
Collection<SearchGroup<BytesRef>> groups)
Constructs
TermDistinctValuesCollector instance. |
TermSecondPassGroupingCollector(String groupField,
Collection<SearchGroup<BytesRef>> groups,
Sort groupSort,
Sort withinGroupSort,
int maxDocsPerGroup,
boolean getScores,
boolean getMaxScores,
boolean fillSortFields) |
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