Class LimitTokenPositionFilter

This Lucene.Net.Analysis.TokenFilter limits its emitted tokens to those with positions that are not greater than the configured limit.

By default, this filter ignores any tokens in the wrapped Lucene.Net.Analysis.TokenStream once the limit has been exceeded, which can result in Reset() being called prior to IncrementToken() returning false. For most Lucene.Net.Analysis.TokenStream implementations this should be acceptable, and faster then consuming the full stream. If you are wrapping a Lucene.Net.Analysis.TokenStream which requires that the full stream of tokens be exhausted in order to function properly, use the LimitTokenPositionFilter(TokenStream, Int32, Boolean) consumeAllTokens option.

Inheritance
System.Object
Lucene.Net.Util.AttributeSource
Lucene.Net.Analysis.TokenStream
Lucene.Net.Analysis.TokenFilter
LimitTokenPositionFilter
Implements
System.IDisposable
Inherited Members
Lucene.Net.Analysis.TokenFilter.m_input
Lucene.Net.Analysis.TokenFilter.End()
Lucene.Net.Analysis.TokenStream.Dispose()
Lucene.Net.Util.AttributeSource.GetAttributeFactory()
Lucene.Net.Util.AttributeSource.GetAttributeClassesEnumerator()
Lucene.Net.Util.AttributeSource.GetAttributeImplsEnumerator()
Lucene.Net.Util.AttributeSource.AddAttributeImpl(Lucene.Net.Util.Attribute)
Lucene.Net.Util.AttributeSource.AddAttribute<T>()
Lucene.Net.Util.AttributeSource.HasAttributes
Lucene.Net.Util.AttributeSource.HasAttribute<T>()
Lucene.Net.Util.AttributeSource.GetAttribute<T>()
Lucene.Net.Util.AttributeSource.ClearAttributes()
Lucene.Net.Util.AttributeSource.CaptureState()
Lucene.Net.Util.AttributeSource.RestoreState(Lucene.Net.Util.AttributeSource.State)
Lucene.Net.Util.AttributeSource.GetHashCode()
Lucene.Net.Util.AttributeSource.ReflectWith(Lucene.Net.Util.IAttributeReflector)
Lucene.Net.Util.AttributeSource.CloneAttributes()
Lucene.Net.Util.AttributeSource.CopyTo(Lucene.Net.Util.AttributeSource)
Lucene.Net.Util.AttributeSource.ToString()
System.Object.Equals(System.Object, System.Object)
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
Namespace: Lucene.Net.Analysis.Miscellaneous
Assembly: Lucene.Net.Analysis.Common.dll
Syntax
public sealed class LimitTokenPositionFilter : TokenFilter, IDisposable

Constructors

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LimitTokenPositionFilter(TokenStream, Int32)

Build a filter that only accepts tokens up to and including the given maximum position. This filter will not consume any tokens with position greater than the maxTokenPosition limit.

Declaration
public LimitTokenPositionFilter(TokenStream in, int maxTokenPosition)
Parameters
Type Name Description
Lucene.Net.Analysis.TokenStream in

the stream to wrap

System.Int32 maxTokenPosition

max position of tokens to produce (1st token always has position 1)
See Also
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LimitTokenPositionFilter(TokenStream, Int32, Boolean)

Build a filter that limits the maximum position of tokens to emit.

Declaration
public LimitTokenPositionFilter(TokenStream in, int maxTokenPosition, bool consumeAllTokens)
Parameters
Type Name Description
Lucene.Net.Analysis.TokenStream in

the stream to wrap

System.Int32 maxTokenPosition

max position of tokens to produce (1st token always has position 1)

System.Boolean consumeAllTokens

whether all tokens from the wrapped input stream must be consumed even if maxTokenPosition is exceeded.

Methods

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IncrementToken()

Declaration
public override bool IncrementToken()
Returns
Type Description
System.Boolean
Overrides
Lucene.Net.Analysis.TokenStream.IncrementToken()
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Reset()

Declaration
public override void Reset()
Overrides
Lucene.Net.Analysis.TokenFilter.Reset()

Implements

System.IDisposable