private static class DistinctValuesCollector.ValuesCollector<R> extends SimpleCollector
Modifier and Type | Field and Description |
---|---|
(package private) java.util.Set<R> |
values |
(package private) GroupSelector<R> |
valueSelector |
Modifier | Constructor and Description |
---|---|
private |
ValuesCollector(GroupSelector<R> valueSelector) |
Modifier and Type | Method and Description |
---|---|
void |
collect(int doc)
Called once for every document matching a query, with the unbased document
number.
|
protected void |
doSetNextReader(LeafReaderContext context)
This method is called before collecting
context . |
ScoreMode |
scoreMode()
Indicates what features are required from the scorer.
|
getLeafCollector, setScorer
final GroupSelector<R> valueSelector
final java.util.Set<R> values
private ValuesCollector(GroupSelector<R> valueSelector)
public void collect(int doc) throws java.io.IOException
LeafCollector
Note: The collection of the current segment can be terminated by throwing
a CollectionTerminatedException
. In this case, the last docs of the
current LeafReaderContext
will be skipped and IndexSearcher
will swallow the exception and continue collection with the next leaf.
Note: This is called in an inner search loop. For good search performance,
implementations of this method should not call IndexSearcher.doc(int)
or
IndexReader.document(int)
on every hit.
Doing so can slow searches by an order of magnitude or more.
collect
in interface LeafCollector
collect
in class SimpleCollector
java.io.IOException
protected void doSetNextReader(LeafReaderContext context) throws java.io.IOException
SimpleCollector
context
.doSetNextReader
in class SimpleCollector
java.io.IOException