org.apache.lucene.analysis.charfilter
Class MappingCharFilter

java.lang.Object
  java.io.Reader
      org.apache.lucene.analysis.CharFilter
          org.apache.lucene.analysis.charfilter.BaseCharFilter
              org.apache.lucene.analysis.charfilter.MappingCharFilter

All Implemented Interfaces:

Closeable, Readable

public class MappingCharFilter
extends BaseCharFilter

Simplistic CharFilter that applies the mappings contained in a NormalizeCharMap to the character stream, and correcting the resulting changes to the offsets. Matching is greedy (longest pattern matching at a given point wins). Replacement is allowed to be the empty string.

Field Summary

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

input

Fields inherited from class java.io.Reader

lock

Constructor Summary

MappingCharFilter(NormalizeCharMap normMap, Reader in)
Default constructor that takes a Reader.

Method Summary

int	read()
int	read(char[] cbuf, int off, int len)
void	reset()

Methods inherited from class org.apache.lucene.analysis.charfilter.BaseCharFilter

addOffCorrectMap, correct, getLastCumulativeDiff

Methods inherited from class org.apache.lucene.analysis.CharFilter

close, correctOffset

Methods inherited from class java.io.Reader

mark, markSupported, read, read, ready, skip

Methods inherited from class java.lang.Object

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

Constructor Detail

MappingCharFilter

public MappingCharFilter(NormalizeCharMap normMap,
                         Reader in)

Default constructor that takes a Reader.

Method Detail

reset

public void reset()
           throws IOException

Overrides:

reset in class Reader

Throws:

IOException

read

public int read()
         throws IOException

Overrides:

read 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