Module org.apache.lucene.core

Package org.apache.lucene.search

Class IndriAndWeight

java.lang.Object

org.apache.lucene.search.Weight

org.apache.lucene.search.IndriAndWeight

All Implemented Interfaces:

SegmentCacheable

public class IndriAndWeight
extends Weight

The Weight for IndriAndQuery, used to normalize, score and explain these queries.

Nested Class Summary

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

Weight.DefaultBulkScorer, Weight.DefaultScorerSupplier

Field Summary

Fields

Modifier and Type	Field	Description
private final float	boost
private final IndriAndQuery	query
private final ScoreMode	scoreMode
private final ArrayList<Weight>	weights

Fields inherited from class org.apache.lucene.search.Weight

parentQuery

Constructor Summary

Constructors

Constructor	Description
IndriAndWeight(IndriAndQuery query, IndexSearcher searcher, ScoreMode scoreMode, float boost)

Method Summary

Modifier and Type	Method	Description
Explanation	explain(LeafReaderContext context, int doc)	An explanation of the score computation for the named document.
private Scorer	getScorer(LeafReaderContext context)
boolean	isCacheable(LeafReaderContext ctx)
ScorerSupplier	scorerSupplier(LeafReaderContext context)	Get a ScorerSupplier, which allows knowing the cost of the Scorer before building it.

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

bulkScorer, count, getQuery, matches, scorer

Methods inherited from class java.lang.Object

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

Field Details

query

private final IndriAndQuery query

weights

private final ArrayList<Weight> weights

scoreMode

private final ScoreMode scoreMode

boost

private final float boost

Constructor Details

IndriAndWeight

public IndriAndWeight(IndriAndQuery query,
 IndexSearcher searcher,
 ScoreMode scoreMode,
 float boost)
               throws IOException

Throws:

IOException

Method Details

getScorer

private Scorer getScorer(LeafReaderContext context)
                  throws IOException

Throws:

IOException

isCacheable

public boolean isCacheable(LeafReaderContext ctx)

Returns:

true if the object can be cached against a given leaf

explain

public Explanation explain(LeafReaderContext context,
 int doc)
                    throws IOException

Description copied from class: Weight

An explanation of the score computation for the named document.

Specified by:

explain in class Weight

Parameters:

context - the readers context to create the Explanation for.

doc - the document's id relative to the given context's reader

Returns:

an Explanation for the score

Throws:

IOException - if an IOException occurs

scorerSupplier

public ScorerSupplier scorerSupplier(LeafReaderContext context)
                              throws IOException

Description copied from class: Weight

Get a ScorerSupplier, which allows knowing the cost of the Scorer before building it. A scorer supplier for the same LeafReaderContext instance may be requested multiple times as part of a single search call.

Note: It must return null if the scorer is null.

Specified by:

scorerSupplier in class Weight

Parameters:

context - the leaf reader context

Returns:

a ScorerSupplier providing the scorer, or null if scorer is null

Throws:

IOException - if an IOException occurs

See Also:

• Scorer
• Weight.DefaultScorerSupplier