Package org.apache.lucene.search.spans
Class SpanPositionCheckQuery
- java.lang.Object
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- org.apache.lucene.search.Query
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- org.apache.lucene.search.spans.SpanQuery
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- org.apache.lucene.search.spans.SpanPositionCheckQuery
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- All Implemented Interfaces:
Cloneable
- Direct Known Subclasses:
SpanNearPayloadCheckQuery
,SpanPayloadCheckQuery
,SpanPositionRangeQuery
public abstract class SpanPositionCheckQuery extends SpanQuery implements Cloneable
Base class for filtering a SpanQuery based on the position of a match.
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Constructor Summary
Constructors Constructor Description SpanPositionCheckQuery(SpanQuery match)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
extractTerms(Set<Term> terms)
Expert: adds all terms occurring in this query to the terms set.String
getField()
Returns the name of the field matched by this query.SpanQuery
getMatch()
Spans
getSpans(AtomicReaderContext context, Bits acceptDocs, Map<Term,TermContext> termContexts)
Expert: Returns the matches for this query in an index.Query
rewrite(IndexReader reader)
Expert: called to re-write queries into primitive queries.-
Methods inherited from class org.apache.lucene.search.spans.SpanQuery
createWeight
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Constructor Detail
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SpanPositionCheckQuery
public SpanPositionCheckQuery(SpanQuery match)
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Method Detail
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getMatch
public SpanQuery getMatch()
- Returns:
- the SpanQuery whose matches are filtered.
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getField
public String getField()
Description copied from class:SpanQuery
Returns the name of the field matched by this query.Note that this may return null if the query matches no terms.
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extractTerms
public void extractTerms(Set<Term> terms)
Description copied from class:Query
Expert: adds all terms occurring in this query to the terms set. Only works if this query is in itsrewritten
form.- Overrides:
extractTerms
in classQuery
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getSpans
public Spans getSpans(AtomicReaderContext context, Bits acceptDocs, Map<Term,TermContext> termContexts) throws IOException
Description copied from class:SpanQuery
Expert: Returns the matches for this query in an index. Used internally to search for spans.- Specified by:
getSpans
in classSpanQuery
- Throws:
IOException
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rewrite
public Query rewrite(IndexReader reader) throws IOException
Description copied from class:Query
Expert: called to re-write queries into primitive queries. For example, a PrefixQuery will be rewritten into a BooleanQuery that consists of TermQuerys.- Overrides:
rewrite
in classQuery
- Throws:
IOException
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