org.apache.lucene.analysis.charfilter
Class MappingCharFilter

java.lang.Object
  extended by java.io.Reader
      extended by java.io.FilterReader
          extended by org.apache.lucene.analysis.CharFilter
              extended by org.apache.lucene.analysis.charfilter.BaseCharFilter
                  extended by 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 java.io.FilterReader
in
 
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
correctOffset
 
Methods inherited from class java.io.FilterReader
close, mark, markSupported, ready, skip
 
Methods inherited from class java.io.Reader
read, read
 
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 FilterReader
Throws:
IOException

read

public int read()
         throws IOException
Overrides:
read in class FilterReader
Throws:
IOException

read

public int read(char[] cbuf,
                int off,
                int len)
         throws IOException
Overrides:
read in class FilterReader
Throws:
IOException


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