org.apache.lucene.search.payloads

Class SpanPayloadCheckQuery.SpanPayloadCheckWeight

java.lang.Object

org.apache.lucene.search.Weight

org.apache.lucene.search.spans.SpanWeight

org.apache.lucene.search.payloads.SpanPayloadCheckQuery.SpanPayloadCheckWeight

Enclosing class:

SpanPayloadCheckQuery

public class SpanPayloadCheckQuery.SpanPayloadCheckWeight
extends SpanWeight

Weight that pulls its Spans using a PayloadSpanCollector

Nested Class Summary

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

SpanWeight.Postings

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

Weight.DefaultBulkScorer

Field Summary

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

field, similarity, simWeight

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

parentQuery

Constructor Summary

Constructors

Constructor and Description
SpanPayloadCheckQuery.SpanPayloadCheckWeight(IndexSearcher searcher, Map<Term,TermContext> termContexts, SpanWeight matchWeight)

Method Summary

Methods

Modifier and Type	Method and Description
void	extractTermContexts(Map<Term,TermContext> contexts) Collect all TermContexts used by this Weight
void	extractTerms(Set<Term> terms) Expert: adds all terms occurring in this query to the terms set.
Spans	getSpans(LeafReaderContext context, SpanWeight.Postings requiredPostings) Expert: Return a Spans object iterating over matches from this Weight
Scorer	scorer(LeafReaderContext context) Returns a Scorer which can iterate in order over all matching documents and assign them a score.

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

explain, getSimScorer, getValueForNormalization, normalize

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

bulkScorer, getQuery

Methods inherited from class java.lang.Object

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

Constructor Detail

SpanPayloadCheckQuery.SpanPayloadCheckWeight

public SpanPayloadCheckQuery.SpanPayloadCheckWeight(IndexSearcher searcher,
                                            Map<Term,TermContext> termContexts,
                                            SpanWeight matchWeight)
                                             throws IOException

Throws:

IOException

Method Detail

extractTerms

public void extractTerms(Set<Term> terms)

Description copied from class: Weight

Expert: adds all terms occurring in this query to the terms set. If the Weight was created with needsScores == true then this method will only extract terms which are used for scoring, otherwise it will extract all terms which are used for matching.

Specified by:

extractTerms in class Weight

extractTermContexts

public void extractTermContexts(Map<Term,TermContext> contexts)

Description copied from class: SpanWeight

Collect all TermContexts used by this Weight

Specified by:

extractTermContexts in class SpanWeight

Parameters:

contexts - a map to add the TermContexts to

getSpans

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

Description copied from class: SpanWeight

Expert: Return a Spans object iterating over matches from this Weight

Specified by:

getSpans in class SpanWeight

Parameters:

context - a LeafReaderContext for this Spans

requiredPostings - the postings information required

Returns:

a Spans

Throws:

IOException - on error

scorer

public Scorer scorer(LeafReaderContext context)
              throws IOException

Description copied from class: Weight

Returns a Scorer which can iterate in order over all matching documents and assign them a score.

NOTE: null can be returned if no documents will be scored by this query.

NOTE: The returned Scorer does not have LeafReader.getLiveDocs() applied, they need to be checked on top.

Overrides:

scorer in class SpanWeight

Parameters:

context - the LeafReaderContext for which to return the Scorer.

Returns:

a Scorer which scores documents in/out-of order.

Throws:

IOException - if there is a low-level I/O error