edu.columbia.cs.cg.prdualrank.index.reader
Class TokenBasedReader

java.lang.Object
  java.io.Reader
      edu.columbia.cs.cg.prdualrank.index.reader.TokenBasedReader

All Implemented Interfaces:

java.io.Closeable, java.lang.Readable

public class TokenBasedReader
extends java.io.Reader

For this Class, Apache Lucene Engine is required.
This class is used for our implementation of: "Searching Patterns for Relation Extraction over the Web: Rediscovering the Pattern-Relation Duality" . Y. Fang and K. C.-C. Chang. In WSDM, pages 825-834, 2011. For further information, WSDM 2011 Conference Website .

Description

Reader used to retrieve tokens from already saved tokens. It is used by Apache Lucene's<\b> interface.

Since:

2011-10-07

Version:

0.1

Author:

Pablo Barrio, Goncalo Simoes

See Also:

Apache Lucene Engine , WSDM 2011 Conference Website

Constructor Summary

TokenBasedReader(Span[] tokenizedSpans, java.lang.String[] tokenizedString)
Instantiates a new token based reader.

Method Summary

void	close()
Span[]	getSpans() Gets the spans.
java.lang.String[]	getStrings() Gets the strings.
int	read(char[] cbuf, int off, int len)

Methods inherited from class java.io.Reader

mark, markSupported, read, read, read, ready, reset, skip

Methods inherited from class java.lang.Object

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

Constructor Detail

TokenBasedReader

public TokenBasedReader(Span[] tokenizedSpans,
                        java.lang.String[] tokenizedString)

Instantiates a new token based reader.

Parameters:

tokenizedSpans - the spans representing the tokenization of the content.

tokenizedString - the value of the tokens. Must match the tokenizedSpans.

Method Detail

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.io.Closeable

Specified by:

close in class java.io.Reader

Throws:

java.io.IOException

read

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

Specified by:

read in class java.io.Reader

Throws:

java.io.IOException

getSpans

public Span[] getSpans()

Gets the spans.

Returns:

the stored spans

getStrings

public java.lang.String[] getStrings()

Gets the strings.

Returns:

the stored strings