org.apache.lucene.search.grouping.function
Class FunctionDistinctValuesCollector
java.lang.Object
org.apache.lucene.search.Collector
org.apache.lucene.search.grouping.AbstractDistinctValuesCollector<FunctionDistinctValuesCollector.GroupCount>
org.apache.lucene.search.grouping.function.FunctionDistinctValuesCollector
public class FunctionDistinctValuesCollector
- extends AbstractDistinctValuesCollector<FunctionDistinctValuesCollector.GroupCount>
Function based implementation of AbstractDistinctValuesCollector
.
- WARNING: This API is experimental and might change in incompatible ways in the next release.
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
FunctionDistinctValuesCollector
public FunctionDistinctValuesCollector(Map<?,?> vsContext,
ValueSource groupSource,
ValueSource countSource,
Collection<SearchGroup<MutableValue>> groups)
getGroups
public List<FunctionDistinctValuesCollector.GroupCount> getGroups()
- Description copied from class:
AbstractDistinctValuesCollector
- Returns all unique values for each top N group.
- Specified by:
getGroups
in class AbstractDistinctValuesCollector<FunctionDistinctValuesCollector.GroupCount>
- Returns:
- all unique values for each top N group
collect
public void collect(int doc)
throws IOException
- Specified by:
collect
in class Collector
- Throws:
IOException
setNextReader
public void setNextReader(AtomicReaderContext context)
throws IOException
- Specified by:
setNextReader
in class Collector
- Throws:
IOException
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