Module org.apache.lucene.queries

Package org.apache.lucene.queries.spans

Class SpanContainingQuery.SpanContainingWeight

java.lang.Object

org.apache.lucene.search.Weight

org.apache.lucene.queries.spans.SpanWeight

org.apache.lucene.queries.spans.SpanContainQuery.SpanContainWeight

org.apache.lucene.queries.spans.SpanContainingQuery.SpanContainingWeight

All Implemented Interfaces:

SegmentCacheable

Enclosing class:

SpanContainingQuery

public class SpanContainingQuery.SpanContainingWeight
extends SpanContainQuery.SpanContainWeight

Creates SpanContainingQuery scorer instances

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lucene.queries.spans.SpanWeight

SpanWeight.Postings

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

Weight.DefaultBulkScorer, Weight.DefaultScorerSupplier

Field Summary

Fields inherited from class org.apache.lucene.queries.spans.SpanContainQuery.SpanContainWeight

bigWeight, littleWeight

Fields inherited from class org.apache.lucene.queries.spans.SpanWeight

field, similarity, simScorer

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

parentQuery

Constructor Summary

Constructors

Constructor	Description
SpanContainingWeight(IndexSearcher searcher, Map<Term,TermStates> terms, SpanWeight bigWeight, SpanWeight littleWeight, float boost)

Method Summary

Modifier and Type	Method	Description
Spans	getSpans(LeafReaderContext context, SpanWeight.Postings requiredPostings)	Return spans from big that contain at least one spans from little.
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.queries.spans.SpanContainQuery.SpanContainWeight

extractTermStates, prepareConjunction

Methods inherited from class org.apache.lucene.queries.spans.SpanWeight

explain, getSimScorer, matches

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

bulkScorer, count, getQuery, scorer

Methods inherited from class java.lang.Object

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

Constructor Details

SpanContainingWeight

public SpanContainingWeight(IndexSearcher searcher,
 Map<Term,TermStates> terms,
 SpanWeight bigWeight,
 SpanWeight littleWeight,
 float boost)
                     throws IOException

Throws:

IOException

Method Details

getSpans

public Spans getSpans(LeafReaderContext context,
 SpanWeight.Postings requiredPostings)
               throws IOException

Return spans from big that contain at least one spans from little. The payload is from the spans of big.

Specified by:

getSpans in class SpanWeight

Parameters:

context - a LeafReaderContext for this Spans

Returns:

a Spans

Throws:

IOException - on error

isCacheable

public boolean isCacheable(LeafReaderContext ctx)

Returns:

true if the object can be cached against a given leaf

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.

Overrides:

scorerSupplier in class SpanWeight

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