org.apache.lucene.index

Class SortingMergePolicy.SortingOneMerge

java.lang.Object

org.apache.lucene.index.MergePolicy.OneMerge

org.apache.lucene.index.SortingMergePolicy.SortingOneMerge

Enclosing class:

SortingMergePolicy

class SortingMergePolicy.SortingOneMerge
extends MergePolicy.OneMerge

Field Summary

Fields

Modifier and Type	Field and Description
(package private) Sorter.DocMap	docMap
(package private) InfoStream	infoStream
(package private) LeafReader	sortedView
(package private) java.util.List<CodecReader>	unsortedReaders

Fields inherited from class org.apache.lucene.index.MergePolicy.OneMerge

error, estimatedMergeBytes, info, isExternal, maxNumSegments, mergeGen, mergeStartNS, rateLimiter, readers, registerDone, segments, totalMaxDoc, totalMergeBytes

Constructor Summary

Constructors

Constructor and Description
SortingOneMerge(java.util.List<SegmentCommitInfo> segments, InfoStream infoStream)

Method Summary

Modifier and Type	Method and Description
private PackedLongValues	getDeletes(java.util.List<CodecReader> readers)
MergePolicy.DocMap	getDocMap(MergeState mergeState) Expert: If MergePolicy.OneMerge.getMergeReaders() reorders document IDs, this method must be overridden to return a mapping from the natural doc ID (the doc ID that would result from a natural merge) to the actual doc ID.
java.util.List<CodecReader>	getMergeReaders() Expert: Get the list of readers to merge.
void	setMergeInfo(SegmentCommitInfo info) Expert: Sets the SegmentCommitInfo of the merged segment.
java.lang.String	toString()

Methods inherited from class org.apache.lucene.index.MergePolicy.OneMerge

getException, getMergeInfo, getStoreMergeInfo, mergeFinished, segString, setException, totalBytesSize, totalNumDocs

Methods inherited from class java.lang.Object

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

Field Detail

unsortedReaders

java.util.List<CodecReader> unsortedReaders

docMap

Sorter.DocMap docMap

sortedView

LeafReader sortedView

infoStream

final InfoStream infoStream

Constructor Detail

SortingOneMerge

SortingOneMerge(java.util.List<SegmentCommitInfo> segments,
                InfoStream infoStream)

Method Detail

getMergeReaders

public java.util.List<CodecReader> getMergeReaders()
                                            throws java.io.IOException

Description copied from class: MergePolicy.OneMerge

Expert: Get the list of readers to merge. Note that this list does not necessarily match the list of segments to merge and should only be used to feed SegmentMerger to initialize a merge. When a MergePolicy.OneMerge reorders doc IDs, it must override MergePolicy.OneMerge.getDocMap(org.apache.lucene.index.MergeState) too so that deletes that happened during the merge can be applied to the newly merged segment.

Overrides:

getMergeReaders in class MergePolicy.OneMerge

Throws:

java.io.IOException

setMergeInfo

public void setMergeInfo(SegmentCommitInfo info)

Description copied from class: MergePolicy.OneMerge

Expert: Sets the SegmentCommitInfo of the merged segment. Allows sub-classes to e.g. set diagnostics properties.

Overrides:

setMergeInfo in class MergePolicy.OneMerge

getDeletes

private PackedLongValues getDeletes(java.util.List<CodecReader> readers)

getDocMap

public MergePolicy.DocMap getDocMap(MergeState mergeState)

Description copied from class: MergePolicy.OneMerge

Expert: If MergePolicy.OneMerge.getMergeReaders() reorders document IDs, this method must be overridden to return a mapping from the natural doc ID (the doc ID that would result from a natural merge) to the actual doc ID. This mapping is used to apply deletions that happened during the merge to the new segment.

Overrides:

getDocMap in class MergePolicy.OneMerge

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object