Class DirectoryTaxonomyIndexWriterFactory

This class offers some hooks for extending classes to control the Lucene.Net.Index.IndexWriter instance that is used by DirectoryTaxonomyWriter.

This class is specific to Lucene.NET to allow to customize the Lucene.Net.Index.IndexWriter instance and its configuration before it is used by DirectoryTaxonomyWriter.

Inheritance

object

DirectoryTaxonomyIndexWriterFactory

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: Lucene.Net.Facet.Taxonomy.Directory

Assembly: Lucene.Net.Facet.dll

Syntax

public class DirectoryTaxonomyIndexWriterFactory

Properties

Default

This class offers some hooks for extending classes to control the Lucene.Net.Index.IndexWriter instance that is used by DirectoryTaxonomyWriter.

This class is specific to Lucene.NET to allow to customize the Lucene.Net.Index.IndexWriter instance and its configuration before it is used by DirectoryTaxonomyWriter.

Declaration

public static DirectoryTaxonomyIndexWriterFactory Default { get; }

Property Value

Type	Description
DirectoryTaxonomyIndexWriterFactory

Methods

CreateIndexWriterConfig(OpenMode)

Create the Lucene.Net.Index.IndexWriterConfig that would be used for opening the internal index writer.

Extensions can configure the Lucene.Net.Index.IndexWriter as they see fit, including setting a Lucene.Net.Index.MergeScheduler, or Lucene.Net.Index.IndexDeletionPolicy, different RAM size etc.

NOTE: internal docids of the configured index must not be altered. For that, categories are never deleted from the taxonomy index. In addition, merge policy in effect must not merge none adjacent segments.

Declaration

public virtual IndexWriterConfig CreateIndexWriterConfig(OpenMode openMode)

Parameters

Type	Name	Description
OpenMode	openMode	see Lucene.Net.Index.OpenMode

Returns

Type	Description
IndexWriterConfig

See Also

OpenIndexWriter(Directory, IndexWriterConfig)

OpenIndexWriter(Directory, IndexWriterConfig)

Open internal index writer, which contains the taxonomy data.

Extensions may provide their own Lucene.Net.Index.IndexWriter implementation or instance.

NOTE: the instance this method returns will be disposed upon calling to Dispose().

NOTE: the merge policy in effect must not merge none adjacent segments. See comment in CreateIndexWriterConfig(OpenMode) for the logic behind this.

Declaration

public virtual IndexWriter OpenIndexWriter(Directory directory, IndexWriterConfig config)

Parameters

Type	Name	Description
Directory	directory	the Lucene.Net.Store.Directory on top of which an Lucene.Net.Index.IndexWriter should be opened.
IndexWriterConfig	config	configuration for the internal index writer.

Returns

Type	Description
IndexWriter

See Also

CreateIndexWriterConfig(OpenMode)