org.apache.lucene.codecs.uniformsplit.sharedterms

Class STMergingTermsEnum.MultiSegmentsPostingsEnum

java.lang.Object

org.apache.lucene.search.DocIdSetIterator

org.apache.lucene.index.PostingsEnum

org.apache.lucene.codecs.uniformsplit.sharedterms.STMergingTermsEnum.MultiSegmentsPostingsEnum

Enclosing class:

STMergingTermsEnum

protected class STMergingTermsEnum.MultiSegmentsPostingsEnum
extends PostingsEnum

Combines multiple segments PostingsEnum as a single PostingsEnum, for one field and one term.

This PostingsEnum does not extend FilterLeafReader.FilterPostingsEnum because it updates the delegate for each segment.

Field Summary

Fields

Modifier and Type	Field and Description
protected int	docId
protected MergeState.DocMap	docMap
protected PostingsEnum	postingsEnum
protected boolean	postingsEnumExhausted
protected int	postingsFlags
protected PostingsEnum[]	reusablePostingsEnums
protected int	segmentIndex
protected List<STUniformSplitTermsWriter.SegmentPostings>	segmentPostingsList

Fields inherited from class org.apache.lucene.index.PostingsEnum

ALL, FREQS, NONE, OFFSETS, PAYLOADS, POSITIONS

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

NO_MORE_DOCS

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	MultiSegmentsPostingsEnum(int numSegments)

Method Summary

Modifier and Type	Method and Description
int	advance(int target)
long	cost()
int	docID()
int	endOffset()
int	freq()
BytesRef	getPayload()
protected PostingsEnum	getPostings(STUniformSplitTermsWriter.SegmentPostings segmentPostings)
int	nextDoc()
int	nextPosition()
protected void	reset(List<STUniformSplitTermsWriter.SegmentPostings> segmentPostingsList) Resets/reuse this PostingsEnum.
protected void	setPostingFlags(int flags)
int	startOffset()

Methods inherited from class org.apache.lucene.index.PostingsEnum

featureRequested

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

all, empty, range, slowAdvance

Methods inherited from class java.lang.Object

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

Field Detail

reusablePostingsEnums

protected final PostingsEnum[] reusablePostingsEnums

segmentPostingsList

protected List<STUniformSplitTermsWriter.SegmentPostings> segmentPostingsList

segmentIndex

protected int segmentIndex

postingsEnum

protected PostingsEnum postingsEnum

postingsEnumExhausted

protected boolean postingsEnumExhausted

docMap

protected MergeState.DocMap docMap

docId

protected int docId

postingsFlags

protected int postingsFlags

Constructor Detail

MultiSegmentsPostingsEnum

protected MultiSegmentsPostingsEnum(int numSegments)

Method Detail

reset

protected void reset(List<STUniformSplitTermsWriter.SegmentPostings> segmentPostingsList)

Resets/reuse this PostingsEnum.

Parameters:

segmentPostingsList - List of segment postings ordered by segment index.

setPostingFlags

protected void setPostingFlags(int flags)

freq

public int freq()
         throws IOException

Specified by:

freq in class PostingsEnum

Throws:

IOException

nextPosition

public int nextPosition()
                 throws IOException

Specified by:

nextPosition in class PostingsEnum

Throws:

IOException

startOffset

public int startOffset()
                throws IOException

Specified by:

startOffset in class PostingsEnum

Throws:

IOException

endOffset

public int endOffset()
              throws IOException

Specified by:

endOffset in class PostingsEnum

Throws:

IOException

getPayload

public BytesRef getPayload()
                    throws IOException

Specified by:

getPayload in class PostingsEnum

Throws:

IOException

docID

public int docID()

Specified by:

docID in class DocIdSetIterator

nextDoc

public int nextDoc()
            throws IOException

Specified by:

nextDoc in class DocIdSetIterator

Throws:

IOException

getPostings

protected PostingsEnum getPostings(STUniformSplitTermsWriter.SegmentPostings segmentPostings)
                            throws IOException

Throws:

IOException

advance

public int advance(int target)

Specified by:

advance in class DocIdSetIterator

cost

public long cost()

Specified by:

cost in class DocIdSetIterator