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

    All Methods Instance Methods Concrete Methods
    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`

Copyright © 2019 The Apache Software Foundation