Class SortingMergePolicy

A Lucene.Net.Index.MergePolicy that reorders documents according to a Lucene.Net.Search.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 AddDocuments(IEnumerable<IEnumerable<IIndexableField>>, Analyzer) to have sequentially-assigned doc IDs, this policy will scatter doc IDs.

NOTE: This policy should only be used with idempotent Lucene.Net.Search.Sorts so that the order of segments is predictable. For example, using 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.

This is a Lucene.NET EXPERIMENTAL API, use at your own risk

Inheritance

System.Object

Lucene.Net.Index.MergePolicy

SortingMergePolicy

Implements

System.IDisposable

Inherited Members

Lucene.Net.Index.MergePolicy.DEFAULT_NO_CFS_RATIO

Lucene.Net.Index.MergePolicy.DEFAULT_MAX_CFS_SEGMENT_SIZE

Lucene.Net.Index.MergePolicy.m_writer

Lucene.Net.Index.MergePolicy.m_noCFSRatio

Lucene.Net.Index.MergePolicy.m_maxCFSSegmentSize

Lucene.Net.Index.MergePolicy.Dispose()

Lucene.Net.Index.MergePolicy.Size(Lucene.Net.Index.SegmentCommitInfo)

Lucene.Net.Index.MergePolicy.IsMerged(Lucene.Net.Index.SegmentInfos, Lucene.Net.Index.SegmentCommitInfo)

Lucene.Net.Index.MergePolicy.NoCFSRatio

Lucene.Net.Index.MergePolicy.MaxCFSSegmentSizeMB

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

Namespace: Lucene.Net.Index.Sorter

Assembly: Lucene.Net.Misc.dll

Syntax

public sealed class SortingMergePolicy : MergePolicy, IDisposable

Constructors

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SortingMergePolicy(MergePolicy, Sort)

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

Declaration

public SortingMergePolicy(MergePolicy in, Sort sort)

Parameters

Type	Name	Description
Lucene.Net.Index.MergePolicy	in
Lucene.Net.Search.Sort	sort

Fields

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SORTER_ID_PROP

Put in the Diagnostics to denote that this segment is sorted.

Declaration

public static readonly string SORTER_ID_PROP

Field Value

Type	Description
System.String

Methods

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Clone()

Declaration

public override object Clone()

Returns

Type	Description
System.Object

Overrides

Lucene.Net.Index.MergePolicy.Clone()

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Dispose(Boolean)

Declaration

protected override void Dispose(bool disposing)

Parameters

Type	Name	Description
System.Boolean	disposing

Overrides

MergePolicy.Dispose(Boolean)

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FindForcedDeletesMerges(SegmentInfos)

Declaration

public override MergePolicy.MergeSpecification FindForcedDeletesMerges(SegmentInfos segmentInfos)

Parameters

Type	Name	Description
Lucene.Net.Index.SegmentInfos	segmentInfos

Returns

Type	Description
Lucene.Net.Index.MergePolicy.MergeSpecification

Overrides

Lucene.Net.Index.MergePolicy.FindForcedDeletesMerges(Lucene.Net.Index.SegmentInfos)

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FindForcedMerges(SegmentInfos, Int32, IDictionary<SegmentCommitInfo, Nullable<Boolean>>)

Declaration

public override MergePolicy.MergeSpecification FindForcedMerges(SegmentInfos segmentInfos, int maxSegmentCount, IDictionary<SegmentCommitInfo, bool?> segmentsToMerge)

Parameters

Type	Name	Description
Lucene.Net.Index.SegmentInfos	segmentInfos
System.Int32	maxSegmentCount
System.Collections.Generic.IDictionary<Lucene.Net.Index.SegmentCommitInfo, System.Nullable<System.Boolean>>	segmentsToMerge

Returns

Type	Description
Lucene.Net.Index.MergePolicy.MergeSpecification

Overrides

MergePolicy.FindForcedMerges(SegmentInfos, Int32, IDictionary<SegmentCommitInfo, Nullable<Boolean>>)

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FindMerges(MergeTrigger, SegmentInfos)

Declaration

public override MergePolicy.MergeSpecification FindMerges(MergeTrigger mergeTrigger, SegmentInfos segmentInfos)

Parameters

Type	Name	Description
Lucene.Net.Index.MergeTrigger	mergeTrigger
Lucene.Net.Index.SegmentInfos	segmentInfos

Returns

Type	Description
Lucene.Net.Index.MergePolicy.MergeSpecification

Overrides

Lucene.Net.Index.MergePolicy.FindMerges(Lucene.Net.Index.MergeTrigger, Lucene.Net.Index.SegmentInfos)

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IsSorted(AtomicReader, Sort)

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

Declaration

public static bool IsSorted(AtomicReader reader, Sort sort)

Parameters

Type	Name	Description
Lucene.Net.Index.AtomicReader	reader
Lucene.Net.Search.Sort	sort

Returns

Type	Description
System.Boolean

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SetIndexWriter(IndexWriter)

Declaration

public override void SetIndexWriter(IndexWriter writer)

Parameters

Type	Name	Description
Lucene.Net.Index.IndexWriter	writer

Overrides

Lucene.Net.Index.MergePolicy.SetIndexWriter(Lucene.Net.Index.IndexWriter)

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ToString()

Declaration

public override string ToString()

Returns

Type	Description
System.String

Overrides

System.Object.ToString()

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UseCompoundFile(SegmentInfos, SegmentCommitInfo)

Declaration

public override bool UseCompoundFile(SegmentInfos segments, SegmentCommitInfo newSegment)

Parameters

Type	Name	Description
Lucene.Net.Index.SegmentInfos	segments
Lucene.Net.Index.SegmentCommitInfo	newSegment

Returns

Type	Description
System.Boolean

Overrides

Lucene.Net.Index.MergePolicy.UseCompoundFile(Lucene.Net.Index.SegmentInfos, Lucene.Net.Index.SegmentCommitInfo)

Implements

System.IDisposable