org.apache.lucene.analysis
Class ReusableAnalyzerBase.TokenStreamComponents

java.lang.Object
  org.apache.lucene.analysis.ReusableAnalyzerBase.TokenStreamComponents

Enclosing class:

ReusableAnalyzerBase

public static class ReusableAnalyzerBase.TokenStreamComponents
extends Object

This class encapsulates the outer components of a token stream. It provides access to the source (Tokenizer) and the outer end (sink), an instance of TokenFilter which also serves as the TokenStream returned by Analyzer.tokenStream(String, Reader) and Analyzer.reusableTokenStream(String, Reader).

Field Summary

protected TokenStream	sink
protected Tokenizer	source

Constructor Summary

ReusableAnalyzerBase.TokenStreamComponents(Tokenizer source)
Creates a new ReusableAnalyzerBase.TokenStreamComponents instance.

ReusableAnalyzerBase.TokenStreamComponents(Tokenizer source, TokenStream result)
Creates a new ReusableAnalyzerBase.TokenStreamComponents instance.

Method Summary

protected TokenStream	getTokenStream() Returns the sink TokenStream
protected boolean	reset(Reader reader) Resets the encapsulated components with the given reader.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

source

protected final Tokenizer source

sink

protected final TokenStream sink

Constructor Detail

ReusableAnalyzerBase.TokenStreamComponents

public ReusableAnalyzerBase.TokenStreamComponents(Tokenizer source,
                                                  TokenStream result)

Creates a new ReusableAnalyzerBase.TokenStreamComponents instance.

Parameters:

source - the analyzer's tokenizer

result - the analyzer's resulting token stream

ReusableAnalyzerBase.TokenStreamComponents

public ReusableAnalyzerBase.TokenStreamComponents(Tokenizer source)

Creates a new ReusableAnalyzerBase.TokenStreamComponents instance.

Parameters:

source - the analyzer's tokenizer

Method Detail

reset

protected boolean reset(Reader reader)
                 throws IOException

Resets the encapsulated components with the given reader. This method by default returns true indicating that the components have been reset successfully. Subclasses of ReusableAnalyzerBase might use their own ReusableAnalyzerBase.TokenStreamComponents returning false if the components cannot be reset.

Parameters:

reader - a reader to reset the source component

Returns:

true if the components were reset, otherwise false

Throws:

IOException - if the component's reset method throws an IOException

getTokenStream

protected TokenStream getTokenStream()

Returns the sink TokenStream

Returns:

the sink TokenStream