org.apache.lucene.analysis
Class CharReader

java.lang.Object
  java.io.Reader
      org.apache.lucene.analysis.CharStream
          org.apache.lucene.analysis.CharReader

All Implemented Interfaces:

Closeable, Readable

public final class CharReader
extends CharStream

CharReader is a Reader wrapper. It reads chars from Reader and outputs CharStream, defining an identify function correctOffset(int) method that simply returns the provided offset.

Field Summary

protected Reader

input

Fields inherited from class java.io.Reader

lock

Method Summary

void	close()
int	correctOffset(int currentOff) Called by CharFilter(s) and Tokenizer to correct token offset.
static CharStream	get(Reader input)
void	mark(int readAheadLimit)
boolean	markSupported()
int	read(char[] cbuf, int off, int len)
void	reset()

Methods inherited from class java.io.Reader

read, read, read, ready, skip

Methods inherited from class java.lang.Object

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

Field Detail

input

protected Reader input

Method Detail

get

public static CharStream get(Reader input)

correctOffset

public int correctOffset(int currentOff)

Description copied from class: CharStream

Called by CharFilter(s) and Tokenizer to correct token offset.

Specified by:

correctOffset in class CharStream

Parameters:

currentOff - offset as seen in the output

Returns:

corrected offset based on the input

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in class Reader

Throws:

IOException

read

public int read(char[] cbuf,
                int off,
                int len)
         throws IOException

Specified by:

read in class Reader

Throws:

IOException

markSupported

public boolean markSupported()

Overrides:

markSupported in class Reader

mark

public void mark(int readAheadLimit)
          throws IOException

Overrides:

mark in class Reader

Throws:

IOException

reset

public void reset()
           throws IOException

Overrides:

reset in class Reader

Throws:

IOException