org.apache.lucene.index
Class MergeState

java.lang.Object
  org.apache.lucene.index.MergeState

public class MergeState
extends Object

Holds common state used during segment merging.

WARNING: This API is experimental and might change in incompatible ways in the next release.

Nested Class Summary

static class	MergeState.CheckAbort Class for recording units of work when merging segments.
static class	MergeState.DocMap Remaps docids around deletes during merge

Field Summary

MergeState.CheckAbort	checkAbort Holds the CheckAbort instance, which is invoked periodically to see if the merge has been aborted.
int[]	docBase New docID base per reader.
MergeState.DocMap[]	docMaps Maps docIDs around deletions.
FieldInfos	fieldInfos FieldInfos of the newly merged segment.
InfoStream	infoStream InfoStream for debugging messages.
int	matchedCount How many matchingSegmentReaders are set.
SegmentReader[]	matchingSegmentReaders SegmentReaders that have identical field name/number mapping, so their stored fields and term vectors may be bulk merged.
List<AtomicReader>	readers Readers being merged.
SegmentInfo	segmentInfo SegmentInfo of the newly merged segment.

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

segmentInfo

public final SegmentInfo segmentInfo

SegmentInfo of the newly merged segment.

fieldInfos

public FieldInfos fieldInfos

FieldInfos of the newly merged segment.

readers

public final List<AtomicReader> readers

Readers being merged.

docMaps

public MergeState.DocMap[] docMaps

Maps docIDs around deletions.

docBase

public int[] docBase

New docID base per reader.

checkAbort

public final MergeState.CheckAbort checkAbort

Holds the CheckAbort instance, which is invoked periodically to see if the merge has been aborted.

infoStream

public final InfoStream infoStream

InfoStream for debugging messages.

matchingSegmentReaders

public SegmentReader[] matchingSegmentReaders

SegmentReaders that have identical field name/number mapping, so their stored fields and term vectors may be bulk merged.

matchedCount

public int matchedCount

How many matchingSegmentReaders are set.