C# Class Lucene.Net.Index.Sorter.SortingMergePolicy

A MergePolicy that reorders documents according to a Sort before merging them. As a consequence, all segments resulting from a merge will be sorted while segments resulting from a flush will be in the order in which documents have been added.

NOTE: Never use this policy if you rely on IndexWriter.AddDocuments to have sequentially-assigned doc IDs, this policy will scatter doc IDs.

NOTE: This policy should only be used with idempotent Sorts so that the order of segments is predictable. For example, using Sort.INDEXORDER in reverse (which is not idempotent) will make the order of documents in a segment depend on the number of times the segment has been merged. @lucene.experimental

Inheritance: MergePolicy

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Public Methods

Method	Description
Clone ( ) : object
Dispose ( ) : void
FindForcedDeletesMerges ( SegmentInfos segmentInfos ) : MergeSpecification
FindForcedMerges ( SegmentInfos segmentInfos, int maxSegmentCount, bool?>.IDictionary segmentsToMerge ) : MergeSpecification
FindMerges ( MergeTrigger mergeTrigger, SegmentInfos segmentInfos ) : MergeSpecification
IsSorted ( AtomicReader reader, Lucene.Net.Search.Sort sort ) : bool	Returns `true` if the given reader is sorted by the specified sort.
SortingMergePolicy ( MergePolicy @in, Lucene.Net.Search.Sort sort ) : Lucene.Net.Search	Create a new MergePolicy that sorts documents with the given sort.
ToString ( ) : string
UseCompoundFile ( SegmentInfos segments, SegmentCommitInfo newSegment ) : bool

Private Methods

Method	Description
SortedMergeSpecification ( MergeSpecification specification ) : MergeSpecification

Method Details

Clone() public method

public Clone ( ) : object
return	object

Dispose() public method

public Dispose ( ) : void
return	void

FindForcedDeletesMerges() public method

public FindForcedDeletesMerges ( SegmentInfos segmentInfos ) : MergeSpecification
segmentInfos	SegmentInfos
return	MergeSpecification

FindForcedMerges() public method

public FindForcedMerges ( SegmentInfos segmentInfos, int maxSegmentCount, bool?>.IDictionary segmentsToMerge ) : MergeSpecification
segmentInfos	SegmentInfos
maxSegmentCount	int
segmentsToMerge	bool?>.IDictionary
return	MergeSpecification

FindMerges() public method

public FindMerges ( MergeTrigger mergeTrigger, SegmentInfos segmentInfos ) : MergeSpecification
mergeTrigger	MergeTrigger
segmentInfos	SegmentInfos
return	MergeSpecification

IsSorted() public static method

Returns true if the given reader is sorted by the specified sort.

public static IsSorted ( AtomicReader reader, Lucene.Net.Search.Sort sort ) : bool
reader	AtomicReader
sort	Lucene.Net.Search.Sort
return	bool

SortingMergePolicy() public method

Create a new MergePolicy that sorts documents with the given sort.

public SortingMergePolicy ( MergePolicy @in, Lucene.Net.Search.Sort sort ) : Lucene.Net.Search
@in	MergePolicy
sort	Lucene.Net.Search.Sort
return	Lucene.Net.Search

ToString() public method

public ToString ( ) : string
return	string

UseCompoundFile() public method

public UseCompoundFile ( SegmentInfos segments, SegmentCommitInfo newSegment ) : bool
segments	SegmentInfos
newSegment	SegmentCommitInfo
return	bool