Module org.apache.lucene.queries
Class DifferenceIntervalsSource
java.lang.Object
org.apache.lucene.queries.intervals.IntervalsSource
org.apache.lucene.queries.intervals.DifferenceIntervalsSource
- Direct Known Subclasses:
NonOverlappingIntervalsSource
,NotContainedByIntervalsSource
,NotContainingIntervalsSource
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Field Summary
FieldsModifier and TypeFieldDescription(package private) final IntervalsSource
(package private) final IntervalsSource
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Constructor Summary
ConstructorsConstructorDescriptionDifferenceIntervalsSource
(IntervalsSource minuend, IntervalsSource subtrahend) -
Method Summary
Modifier and TypeMethodDescriptionprotected abstract IntervalIterator
combine
(IntervalIterator minuend, IntervalIterator subtrahend) final IntervalIterator
intervals
(String field, LeafReaderContext ctx) Create anIntervalIterator
exposing the minimum intervals defined by thisIntervalsSource
final IntervalMatchesIterator
matches
(String field, LeafReaderContext ctx, int doc) Return aMatchesIterator
over the intervals defined by thisIntervalsSource
for a given document and fieldint
Return the minimum possible width of an interval returned by this sourcevoid
visit
(String field, QueryVisitor visitor) Expert: visit the tree of sourcesMethods inherited from class org.apache.lucene.queries.intervals.IntervalsSource
equals, hashCode, pullUpDisjunctions, toString
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Field Details
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minuend
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subtrahend
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Constructor Details
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DifferenceIntervalsSource
DifferenceIntervalsSource(IntervalsSource minuend, IntervalsSource subtrahend)
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Method Details
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combine
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intervals
Description copied from class:IntervalsSource
Create anIntervalIterator
exposing the minimum intervals defined by thisIntervalsSource
Returns
null
if no intervals for this field exist in this segment- Specified by:
intervals
in classIntervalsSource
- Parameters:
field
- the field to read positions fromctx
- the context for which to return the iterator- Throws:
IOException
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matches
public final IntervalMatchesIterator matches(String field, LeafReaderContext ctx, int doc) throws IOException Description copied from class:IntervalsSource
Return aMatchesIterator
over the intervals defined by thisIntervalsSource
for a given document and fieldReturns
null
if no intervals exist in the given document and field- Specified by:
matches
in classIntervalsSource
- Parameters:
field
- the field to read positions fromctx
- the document's contextdoc
- the document to return matches for- Throws:
IOException
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visit
Description copied from class:IntervalsSource
Expert: visit the tree of sources- Specified by:
visit
in classIntervalsSource
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minExtent
public int minExtent()Description copied from class:IntervalsSource
Return the minimum possible width of an interval returned by this source- Specified by:
minExtent
in classIntervalsSource
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