org.apache.lucene.analysis.miscellaneous

Class ConcatenatingTokenStream

java.lang.Object

org.apache.lucene.util.AttributeSource

org.apache.lucene.analysis.TokenStream

org.apache.lucene.analysis.miscellaneous.ConcatenatingTokenStream

All Implemented Interfaces:

Closeable, AutoCloseable

public final class ConcatenatingTokenStream
extends TokenStream

A TokenStream that takes an array of input TokenStreams as sources, and concatenates them together. Offsets from the second and subsequent sources are incremented to behave as if all the inputs were from a single source. All of the input TokenStreams must have the same attribute implementations

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lucene.util.AttributeSource

AttributeSource.State

Field Summary

Fields inherited from class org.apache.lucene.analysis.TokenStream

DEFAULT_TOKEN_ATTRIBUTE_FACTORY

Constructor Summary

Constructors

Constructor and Description
ConcatenatingTokenStream(TokenStream... sources) Create a new ConcatenatingTokenStream from a set of inputs

Method Summary

Modifier and Type	Method and Description
void	close()
void	end()
boolean	incrementToken()
void	reset()

Methods inherited from class org.apache.lucene.util.AttributeSource

addAttribute, addAttributeImpl, captureState, clearAttributes, cloneAttributes, copyTo, endAttributes, equals, getAttribute, getAttributeClassesIterator, getAttributeFactory, getAttributeImplsIterator, hasAttribute, hasAttributes, hashCode, reflectAsString, reflectWith, removeAllAttributes, restoreState, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ConcatenatingTokenStream

public ConcatenatingTokenStream(TokenStream... sources)

Create a new ConcatenatingTokenStream from a set of inputs

Parameters:

sources - an array of TokenStream inputs to concatenate

Method Detail

incrementToken

public boolean incrementToken()
                       throws IOException

Specified by:

incrementToken in class TokenStream

Throws:

IOException

end

public void end()
         throws IOException

Overrides:

end in class TokenStream

Throws:

IOException

reset

public void reset()
           throws IOException

Overrides:

reset in class TokenStream

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class TokenStream

Throws:

IOException