Class Lucene47WordDelimiterFilter

Old Broken version of WordDelimiterFilter

Inheritance

object

AttributeSource

TokenStream

TokenFilter

Lucene47WordDelimiterFilter

Implements

IDisposable

Inherited Members

TokenFilter.End()

TokenStream.Dispose()

AttributeSource.GetAttributeFactory()

AttributeSource.GetAttributeClassesEnumerator()

AttributeSource.GetAttributeImplsEnumerator()

AttributeSource.AddAttributeImpl(Attribute)

AttributeSource.AddAttribute<T>()

AttributeSource.HasAttributes

AttributeSource.HasAttribute<T>()

AttributeSource.GetAttribute<T>()

AttributeSource.ClearAttributes()

AttributeSource.CaptureState()

AttributeSource.RestoreState(AttributeSource.State)

AttributeSource.GetHashCode()

AttributeSource.Equals(object)

AttributeSource.ReflectAsString(bool)

AttributeSource.ReflectWith(IAttributeReflector)

AttributeSource.CloneAttributes()

AttributeSource.CopyTo(AttributeSource)

AttributeSource.ToString()

object.Equals(object, object)

object.GetType()

object.ReferenceEquals(object, object)

Namespace: Lucene.Net.Analysis.Miscellaneous

Assembly: Lucene.Net.Analysis.Common.dll

Syntax

[Obsolete]
public sealed class Lucene47WordDelimiterFilter : TokenFilter, IDisposable

Constructors

Lucene47WordDelimiterFilter(TokenStream, WordDelimiterFlags, CharArraySet)

Creates a new Lucene47WordDelimiterFilter using DEFAULT_WORD_DELIM_TABLE as its charTypeTable

Declaration

public Lucene47WordDelimiterFilter(TokenStream @in, WordDelimiterFlags configurationFlags, CharArraySet protWords)

Parameters

Type	Name	Description
TokenStream	in	Lucene.Net.Analysis.TokenStream to be filtered
WordDelimiterFlags	configurationFlags	Flags configuring the filter
CharArraySet	protWords	If not null is the set of tokens to protect from being delimited

Lucene47WordDelimiterFilter(TokenStream, byte[], WordDelimiterFlags, CharArraySet)

Creates a new Lucene47WordDelimiterFilter

Declaration

public Lucene47WordDelimiterFilter(TokenStream @in, byte[] charTypeTable, WordDelimiterFlags configurationFlags, CharArraySet protWords)

Parameters

Type	Name	Description
TokenStream	in	Lucene.Net.Analysis.TokenStream to be filtered
byte[]	charTypeTable	table containing character types
WordDelimiterFlags	configurationFlags	Flags configuring the filter
CharArraySet	protWords	If not null is the set of tokens to protect from being delimited

Fields

ALPHA

Old Broken version of WordDelimiterFilter

Declaration

public const int ALPHA = 3

Field Value

Type	Description
int

ALPHANUM

Old Broken version of WordDelimiterFilter

Declaration

public const int ALPHANUM = 7

Field Value

Type	Description
int

DIGIT

Old Broken version of WordDelimiterFilter

Declaration

public const int DIGIT = 4

Field Value

Type	Description
int

LOWER

Old Broken version of WordDelimiterFilter

Declaration

public const int LOWER = 1

Field Value

Type	Description
int

SUBWORD_DELIM

Old Broken version of WordDelimiterFilter

Declaration

public const int SUBWORD_DELIM = 8

Field Value

Type	Description
int

UPPER

Old Broken version of WordDelimiterFilter

Declaration

public const int UPPER = 2

Field Value

Type	Description
int

Methods

IncrementToken()

Consumers (i.e., Lucene.Net.Index.IndexWriter) use this method to advance the stream to the next token. Implementing classes must implement this method and update the appropriate Lucene.Net.Util.IAttributes with the attributes of the next token.

The producer must make no assumptions about the attributes after the method has been returned: the caller may arbitrarily change it. If the producer needs to preserve the state for subsequent calls, it can use Lucene.Net.Util.AttributeSource.CaptureState() to create a copy of the current attribute state.

this method is called for every token of a document, so an efficient implementation is crucial for good performance. To avoid calls to Lucene.Net.Util.AttributeSource.AddAttribute<T>() and Lucene.Net.Util.AttributeSource.GetAttribute<T>(), references to all Lucene.Net.Util.IAttributes that this stream uses should be retrieved during instantiation.

To ensure that filters and consumers know which attributes are available, the attributes must be added during instantiation. Filters and consumers are not required to check for availability of attributes in Lucene.Net.Analysis.TokenStream.IncrementToken().

Declaration

public override bool IncrementToken()

Returns

Type	Description
bool	false for end of stream; true otherwise

Overrides

Lucene.Net.Analysis.TokenStream.IncrementToken()

Reset()

This method is called by a consumer before it begins consumption using IncrementToken().

Resets this stream to a clean state. Stateful implementations must implement this method so that they can be reused, just as if they had been created fresh.

If you override this method, always call base.Reset(), otherwise some internal state will not be correctly reset (e.g., Lucene.Net.Analysis.Tokenizer will throw InvalidOperationException on further usage).

Declaration

public override void Reset()

Overrides

Lucene.Net.Analysis.TokenFilter.Reset()

Remarks

NOTE: The default implementation chains the call to the input Lucene.Net.Analysis.TokenStream, so be sure to call base.Reset() when overriding this method.

Implements

IDisposable