org.apache.lucene.search.suggest.document

Class TopSuggestDocsCollector

java.lang.Object

SimpleCollector

org.apache.lucene.search.suggest.document.TopSuggestDocsCollector

public class TopSuggestDocsCollector
extends SimpleCollector

org.apache.lucene.search.Collector that collects completion and score, along with document id

Non scoring collector that collect completions in order of their pre-computed scores.

NOTE: One document can be collected multiple times if a document is matched for multiple unique completions for a given query

Subclasses should only override collect(int, CharSequence, CharSequence, float).

NOTE: #setScorer(org.apache.lucene.search.Scorable) and collect(int) is not used

Field Summary

Fields

Modifier and Type	Field and Description
protected int	docBase Document base offset for the current Leaf

Constructor Summary

Constructors

Constructor and Description
TopSuggestDocsCollector(int num, boolean skipDuplicates) Sole constructor Collects at most num completions with corresponding document and weight

Method Summary

Modifier and Type	Method and Description
void	collect(int doc) Ignored
void	collect(int docID, java.lang.CharSequence key, java.lang.CharSequence context, float score) Called for every matched completion, similar to org.apache.lucene.search.LeafCollector#collect(int) but for completions.
protected void	doSetNextReader(LeafReaderContext context)
protected boolean	doSkipDuplicates() Returns true if duplicates are filtered out
TopSuggestDocs	get() Returns at most num Top scoring TopSuggestDocss
int	getCountToCollect() Returns the number of results to be collected
ScoreMode	scoreMode() Ignored

Methods inherited from class java.lang.Object

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

Field Detail

docBase

protected int docBase

Document base offset for the current Leaf

Constructor Detail

TopSuggestDocsCollector

public TopSuggestDocsCollector(int num,
                               boolean skipDuplicates)

Sole constructor Collects at most num completions with corresponding document and weight

Method Detail

doSkipDuplicates

protected boolean doSkipDuplicates()

Returns true if duplicates are filtered out

getCountToCollect

public int getCountToCollect()

Returns the number of results to be collected

doSetNextReader

protected void doSetNextReader(LeafReaderContext context)
                        throws java.io.IOException

Throws:

java.io.IOException

collect

public void collect(int docID,
                    java.lang.CharSequence key,
                    java.lang.CharSequence context,
                    float score)
             throws java.io.IOException

Called for every matched completion, similar to org.apache.lucene.search.LeafCollector#collect(int) but for completions. NOTE: collection at the leaf level is guaranteed to be in descending order of score

Throws:

java.io.IOException

get

public TopSuggestDocs get()
                   throws java.io.IOException

Returns at most num Top scoring TopSuggestDocss

Throws:

java.io.IOException

collect

public void collect(int doc)
             throws java.io.IOException

Ignored

Throws:

java.io.IOException

scoreMode

public ScoreMode scoreMode()

Ignored