Class SegmentWriteState

Holder class for common parameters used during write.

This is a Lucene.NET EXPERIMENTAL API, use at your own risk
Inheritance
System.Object
SegmentWriteState
Namespace: Lucene.Net.Index
Assembly: Lucene.Net.dll
Syntax
public class SegmentWriteState : object

Constructors

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SegmentWriteState(SegmentWriteState, String)

Create a shallow copy of SegmentWriteState with a new segment suffix.

Declaration
public SegmentWriteState(SegmentWriteState state, string segmentSuffix)
Parameters
Type Name Description
SegmentWriteState state
System.String segmentSuffix
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SegmentWriteState(InfoStream, Directory, SegmentInfo, FieldInfos, Int32, BufferedUpdates, IOContext)

Sole constructor.

Declaration
public SegmentWriteState(InfoStream infoStream, Directory directory, SegmentInfo segmentInfo, FieldInfos fieldInfos, int termIndexInterval, BufferedUpdates segUpdates, IOContext context)
Parameters
Type Name Description
InfoStream infoStream
Directory directory
SegmentInfo segmentInfo
FieldInfos fieldInfos
System.Int32 termIndexInterval
BufferedUpdates segUpdates
IOContext context
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SegmentWriteState(InfoStream, Directory, SegmentInfo, FieldInfos, Int32, BufferedUpdates, IOContext, String)

Constructor which takes segment suffix.

Declaration
public SegmentWriteState(InfoStream infoStream, Directory directory, SegmentInfo segmentInfo, FieldInfos fieldInfos, int termIndexInterval, BufferedUpdates segUpdates, IOContext context, string segmentSuffix)
Parameters
Type Name Description
InfoStream infoStream
Directory directory
SegmentInfo segmentInfo
FieldInfos fieldInfos
System.Int32 termIndexInterval
BufferedUpdates segUpdates
IOContext context
System.String segmentSuffix
See Also

Properties

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Context

IOContext for all writes; you should pass this to CreateOutput(String, IOContext).

Declaration
public IOContext Context { get; }
Property Value
Type Description
IOContext
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DelCountOnFlush

Number of deleted documents set while flushing the segment.

Declaration
public int DelCountOnFlush { get; set; }
Property Value
Type Description
System.Int32
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Directory

Directory where this segment will be written to.

Declaration
public Directory Directory { get; }
Property Value
Type Description
Directory
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FieldInfos

FieldInfos describing all fields in this segment.

Declaration
public FieldInfos FieldInfos { get; }
Property Value
Type Description
FieldInfos
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InfoStream

InfoStream used for debugging messages.

Declaration
public InfoStream InfoStream { get; }
Property Value
Type Description
InfoStream
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LiveDocs

IMutableBits recording live documents; this is only set if there is one or more deleted documents.

Declaration
public IMutableBits LiveDocs { get; set; }
Property Value
Type Description
IMutableBits
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SegmentInfo

SegmentInfo describing this segment.

Declaration
public SegmentInfo SegmentInfo { get; }
Property Value
Type Description
SegmentInfo
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SegmentSuffix

Unique suffix for any postings files written for this segment. PerFieldPostingsFormat sets this for each of the postings formats it wraps. If you create a new PostingsFormat then any files you write/read must be derived using this suffix (use SegmentFileName(String, String, String)).

Declaration
public string SegmentSuffix { get; }
Property Value
Type Description
System.String
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SegUpdates

Deletes and updates to apply while we are flushing the segment. A Term is enrolled in here if it was deleted/updated at one point, and it's mapped to the docIDUpto, meaning any docID < docIDUpto containing this term should be deleted/updated.

Declaration
public BufferedUpdates SegUpdates { get; }
Property Value
Type Description
BufferedUpdates
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TermIndexInterval

Expert: The fraction of terms in the "dictionary" which should be stored in RAM. Smaller values use more memory, but make searching slightly faster, while larger values use less memory and make searching slightly slower. Searching is typically not dominated by dictionary lookup, so tweaking this is rarely useful.

Declaration
public int TermIndexInterval { get; set; }
Property Value
Type Description
System.Int32