Package 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
  Description
  `ConcatenatingTokenStream(TokenStream... sources)`
  Create a new ConcatenatingTokenStream from a set of inputs

- ## Method Summary

  Modifier and Type
  Method
  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 Details

  - ### ConcatenatingTokenStream

    public ConcatenatingTokenStream(TokenStream... sources)
    Create a new ConcatenatingTokenStream from a set of inputs
    Parameters:
      `sources` - an array of TokenStream inputs to concatenate

- ## Method Details

  - ### 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 `AutoCloseable`
    Specified by:
      `close` in interface `Closeable`
    Overrides:
      `close` in class `TokenStream`
    Throws:
      `IOException`