Class CachingMatchesIterator
- java.lang.Object
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- org.apache.lucene.search.FilterMatchesIterator
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- org.apache.lucene.queries.intervals.CachingMatchesIterator
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- All Implemented Interfaces:
IntervalMatchesIterator
,MatchesIterator
class CachingMatchesIterator extends FilterMatchesIterator implements IntervalMatchesIterator
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Field Summary
Fields Modifier and Type Field Description private int
count
private Query[]
matchingQueries
private int[]
posAndOffsets
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Fields inherited from class org.apache.lucene.search.FilterMatchesIterator
in
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Constructor Summary
Constructors Constructor Description CachingMatchesIterator(IntervalMatchesIterator in)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description (package private) void
cache()
int
endOffset()
The ending offset of the current match, or-1
if offsets are not availableint
gaps()
The number of top-level gaps inside the current matchQuery
getQuery()
Returns the Query causing the current matchMatchesIterator
getSubMatches()
Returns a MatchesIterator that iterates over the positions and offsets of individual terms within the current matchboolean
next()
Advance the iterator to the next match positionint
startOffset()
The starting offset of the current match, or-1
if offsets are not availableint
width()
The width of the current match-
Methods inherited from class org.apache.lucene.search.FilterMatchesIterator
endPosition, startPosition
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.apache.lucene.search.MatchesIterator
endPosition, startPosition
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Field Detail
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posAndOffsets
private int[] posAndOffsets
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matchingQueries
private Query[] matchingQueries
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count
private int count
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Constructor Detail
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CachingMatchesIterator
CachingMatchesIterator(IntervalMatchesIterator in)
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Method Detail
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cache
void cache() throws java.io.IOException
- Throws:
java.io.IOException
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next
public boolean next() throws java.io.IOException
Description copied from interface:MatchesIterator
Advance the iterator to the next match position- Specified by:
next
in interfaceMatchesIterator
- Overrides:
next
in classFilterMatchesIterator
- Returns:
true
if matches have not been exhausted- Throws:
java.io.IOException
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startOffset
public int startOffset() throws java.io.IOException
Description copied from interface:MatchesIterator
The starting offset of the current match, or-1
if offsets are not availableShould only be called after
MatchesIterator.next()
has returnedtrue
- Specified by:
startOffset
in interfaceMatchesIterator
- Overrides:
startOffset
in classFilterMatchesIterator
- Throws:
java.io.IOException
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endOffset
public int endOffset() throws java.io.IOException
Description copied from interface:MatchesIterator
The ending offset of the current match, or-1
if offsets are not availableShould only be called after
MatchesIterator.next()
has returnedtrue
- Specified by:
endOffset
in interfaceMatchesIterator
- Overrides:
endOffset
in classFilterMatchesIterator
- Throws:
java.io.IOException
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getSubMatches
public MatchesIterator getSubMatches()
Description copied from interface:MatchesIterator
Returns a MatchesIterator that iterates over the positions and offsets of individual terms within the current matchReturns
null
if there are no submatches (ie the current iterator is at the leaf level)Should only be called after
MatchesIterator.next()
has returnedtrue
- Specified by:
getSubMatches
in interfaceMatchesIterator
- Overrides:
getSubMatches
in classFilterMatchesIterator
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getQuery
public Query getQuery()
Description copied from interface:MatchesIterator
Returns the Query causing the current matchIf this
MatchesIterator
has been returned from aMatchesIterator.getSubMatches()
call, then returns aTermQuery
equivalent to the current matchShould only be called after
MatchesIterator.next()
has returnedtrue
- Specified by:
getQuery
in interfaceMatchesIterator
- Overrides:
getQuery
in classFilterMatchesIterator
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gaps
public int gaps()
Description copied from interface:IntervalMatchesIterator
The number of top-level gaps inside the current match- Specified by:
gaps
in interfaceIntervalMatchesIterator
- See Also:
IntervalIterator.gaps()
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width
public int width()
Description copied from interface:IntervalMatchesIterator
The width of the current match- Specified by:
width
in interfaceIntervalMatchesIterator
- See Also:
IntervalIterator.width()
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