Package org.apache.lucene.queries.spans
Class SpanFirstQuery
- java.lang.Object
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- org.apache.lucene.search.Query
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- org.apache.lucene.queries.spans.SpanQuery
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- org.apache.lucene.queries.spans.SpanPositionCheckQuery
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- org.apache.lucene.queries.spans.SpanPositionRangeQuery
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- org.apache.lucene.queries.spans.SpanFirstQuery
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- All Implemented Interfaces:
Cloneable
public class SpanFirstQuery extends SpanPositionRangeQuery
Matches spans near the beginning of a field.This class is a simple extension of
SpanPositionRangeQueryin that it assumes the start to be zero and only checks the end boundary.
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Nested Class Summary
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Nested classes/interfaces inherited from class org.apache.lucene.queries.spans.SpanPositionCheckQuery
SpanPositionCheckQuery.SpanPositionCheckWeight
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Field Summary
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Fields inherited from class org.apache.lucene.queries.spans.SpanPositionRangeQuery
end, start
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Fields inherited from class org.apache.lucene.queries.spans.SpanPositionCheckQuery
match
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Constructor Summary
Constructors Constructor Description SpanFirstQuery(SpanQuery match, int end)Construct a SpanFirstQuery matching spans inmatchwhose end position is less than or equal toend.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected FilterSpans.AcceptStatusacceptPosition(Spans spans)Implementing classes are required to return whether the current position is a match for the passed in "match"SpanQuery.StringtoString(String field)-
Methods inherited from class org.apache.lucene.queries.spans.SpanPositionRangeQuery
equals, getEnd, getStart, hashCode
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Methods inherited from class org.apache.lucene.queries.spans.SpanPositionCheckQuery
createWeight, getField, getMatch, rewrite, visit
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Methods inherited from class org.apache.lucene.queries.spans.SpanQuery
getTermStates, getTermStates
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Methods inherited from class org.apache.lucene.search.Query
classHash, rewrite, sameClassAs, toString
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Constructor Detail
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SpanFirstQuery
public SpanFirstQuery(SpanQuery match, int end)
Construct a SpanFirstQuery matching spans inmatchwhose end position is less than or equal toend.
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Method Detail
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acceptPosition
protected FilterSpans.AcceptStatus acceptPosition(Spans spans)
Description copied from class:SpanPositionCheckQueryImplementing classes are required to return whether the current position is a match for the passed in "match"SpanQuery.This is only called if the underlying last
Spans.nextStartPosition()for the match indicated a valid start position.- Overrides:
acceptPositionin classSpanPositionRangeQuery- Parameters:
spans- TheSpansinstance, positioned at the spot to check- Returns:
- whether the match is accepted, rejected, or rejected and should move to the next doc.
- See Also:
DocIdSetIterator.nextDoc()
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toString
public String toString(String field)
- Overrides:
toStringin classSpanPositionRangeQuery
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