Class 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 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
System.Object
MergePolicy
SortingMergePolicy
Inherited Members
Lucene.Net.Index.MergePolicy.FindForcedMerges(Lucene.Net.Index.SegmentInfos, System.Int32, System.Collections.Generic.IDictionary<Lucene.Net.Index.SegmentCommitInfo, System.Nullable<System.Boolean>>)
Assembly: Lucene.Net.Misc.dll
Syntax
public sealed class SortingMergePolicy : MergePolicy, IDisposable

Constructors

Name Description
SortingMergePolicy(MergePolicy, Sort)

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

Fields

Name Description
SORTER_ID_PROP

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

Methods

Name Description
Clone()
Dispose(Boolean)
FindForcedDeletesMerges(SegmentInfos)
FindForcedMerges(SegmentInfos, Int32, IDictionary<SegmentCommitInfo, Nullable<Boolean>>)
FindMerges(MergeTrigger, SegmentInfos)
IsSorted(AtomicReader, Sort)

Returns true if the given reader is sorted by the specified sort.
SetIndexWriter(IndexWriter)
ToString()
UseCompoundFile(SegmentInfos, SegmentCommitInfo)

Extension Methods