org.apache.nutch.service.impl

Class SequenceReader

java.lang.Object

org.apache.nutch.service.impl.SequenceReader

All Implemented Interfaces:

NutchReader

public class SequenceReader
extends java.lang.Object
implements NutchReader

Enables reading a sequence file and methods provide different ways to read the file.

Author:

Sujen Shah

Field Summary

Fields inherited from interface org.apache.nutch.service.NutchReader

conf, LOG

Constructor Summary

Constructors

Constructor and Description
SequenceReader()

Method Summary

Modifier and Type	Method and Description
int	count(java.lang.String path)
java.util.List<java.util.List<java.lang.String>>	head(java.lang.String path, int nrows)
java.util.List<java.util.List<java.lang.String>>	read(java.lang.String path)
java.util.List<java.util.List<java.lang.String>>	slice(java.lang.String path, int start, int end)

Methods inherited from class java.lang.Object

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

Constructor Detail

SequenceReader

public SequenceReader()

Method Detail

read

public java.util.List<java.util.List<java.lang.String>> read(java.lang.String path)
                                                      throws java.io.FileNotFoundException

Specified by:

read in interface NutchReader

Throws:

java.io.FileNotFoundException

head

public java.util.List<java.util.List<java.lang.String>> head(java.lang.String path,
                                                             int nrows)
                                                      throws java.io.FileNotFoundException

Specified by:

head in interface NutchReader

Throws:

java.io.FileNotFoundException

slice

public java.util.List<java.util.List<java.lang.String>> slice(java.lang.String path,
                                                              int start,
                                                              int end)
                                                       throws java.io.FileNotFoundException

Specified by:

slice in interface NutchReader

Throws:

java.io.FileNotFoundException

count

public int count(java.lang.String path)
          throws java.io.FileNotFoundException

Specified by:

count in interface NutchReader

Throws:

java.io.FileNotFoundException