public abstract class AbstractAllGroupsCollector<GROUP_VALUE_TYPE> extends Collector
| Constructor and Description |
|---|
AbstractAllGroupsCollector() |
| Modifier and Type | Method and Description |
|---|---|
boolean |
acceptsDocsOutOfOrder()
Return
true if this collector does not
require the matching docIDs to be delivered in int sort
order (smallest to largest) to Collector.collect(int). |
int |
getGroupCount()
Returns the total number of groups for the executed search.
|
abstract Collection<GROUP_VALUE_TYPE> |
getGroups()
Returns the group values
This is an unordered collections of group values.
|
void |
setScorer(Scorer scorer)
Called before successive calls to
Collector.collect(int). |
collect, setNextReaderpublic int getGroupCount()
getGroups().size()
public abstract Collection<GROUP_VALUE_TYPE> getGroups()
BytesRef
representing a group value.public void setScorer(Scorer scorer) throws IOException
CollectorCollector.collect(int). Implementations
that need the score of the current document (passed-in to
Collector.collect(int)), should save the passed-in Scorer and call
scorer.score() when needed.setScorer in class CollectorIOExceptionpublic boolean acceptsDocsOutOfOrder()
Collectortrue if this collector does not
require the matching docIDs to be delivered in int sort
order (smallest to largest) to Collector.collect(int).
Most Lucene Query implementations will visit
matching docIDs in order. However, some queries
(currently limited to certain cases of BooleanQuery) can achieve faster searching if the
Collector allows them to deliver the
docIDs out of order.
Many collectors don't mind getting docIDs out of
order, so it's important to return true
here.
acceptsDocsOutOfOrder in class CollectorCopyright © 2000-2015 Apache Software Foundation. All Rights Reserved.