org.apache.lucene.search.grouping

Class AllGroupHeadsCollector.SortingGroupHeadsCollector<T>

java.lang.Object

org.apache.lucene.search.SimpleCollector

org.apache.lucene.search.grouping.AllGroupHeadsCollector<T>

org.apache.lucene.search.grouping.AllGroupHeadsCollector.SortingGroupHeadsCollector<T>

All Implemented Interfaces:

Collector, LeafCollector

Enclosing class:

AllGroupHeadsCollector<T>

private static class AllGroupHeadsCollector.SortingGroupHeadsCollector<T>
extends AllGroupHeadsCollector<T>

General implementation using a FieldComparator to select the group head

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lucene.search.grouping.AllGroupHeadsCollector

AllGroupHeadsCollector.GroupHead<T>

Field Summary

Fields inherited from class org.apache.lucene.search.grouping.AllGroupHeadsCollector

compIDXEnd, context, heads, reversed, scorer, sort

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	SortingGroupHeadsCollector(GroupSelector<T> selector, Sort sort)

Method Summary

Modifier and Type	Method and Description
protected AllGroupHeadsCollector.GroupHead<T>	newGroupHead(int doc, T value, LeafReaderContext ctx, Scorable scorer) Create a new GroupHead for the given group value, initialized with a doc, context and scorer

Methods inherited from class org.apache.lucene.search.grouping.AllGroupHeadsCollector

collect, doSetNextReader, getCollectedGroupHeads, groupHeadsSize, newCollector, retrieveGroupHeads, retrieveGroupHeads, scoreMode, setScorer

Methods inherited from class org.apache.lucene.search.SimpleCollector

getLeafCollector

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SortingGroupHeadsCollector

protected SortingGroupHeadsCollector(GroupSelector<T> selector,
                                     Sort sort)

Method Detail

newGroupHead

protected AllGroupHeadsCollector.GroupHead<T> newGroupHead(int doc,
                                                           T value,
                                                           LeafReaderContext ctx,
                                                           Scorable scorer)
                                                    throws java.io.IOException

Description copied from class: AllGroupHeadsCollector

Create a new GroupHead for the given group value, initialized with a doc, context and scorer

Specified by:

newGroupHead in class AllGroupHeadsCollector<T>

Throws:

java.io.IOException