org.apache.nutch.crawl

## Class DbUpdateMapper

- java.lang.Object
- - org.apache.hadoop.mapreduce.Mapper<K1,V1,K2,V2>
  - - org.apache.gora.mapreduce.GoraMapper<String,WebPage,UrlWithScore,NutchWritable>
    - - org.apache.nutch.crawl.DbUpdateMapper

-     public class DbUpdateMapper
      extends org.apache.gora.mapreduce.GoraMapper<String,WebPage,UrlWithScore,NutchWritable>

- - ### Nested Class Summary

    - ### Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Mapper

      `Mapper.Context`

  - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static org.slf4j.Logger` | `LOG`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `DbUpdateMapper()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `map(String key, WebPage page, Mapper.Context context)`
    `void` | `setup(Mapper.Context context)`

    - ### Methods inherited from class org.apache.gora.mapreduce.GoraMapper

      `initMapperJob, initMapperJob, initMapperJob, initMapperJob, initMapperJob`

    - ### Methods inherited from class org.apache.hadoop.mapreduce.Mapper

      `cleanup, run`

    - ### Methods inherited from class java.lang.Object

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

- - ### Field Detail

    - #### LOG

          public static final org.slf4j.Logger LOG

  - ### Constructor Detail

    - #### DbUpdateMapper

          public DbUpdateMapper()

  - ### Method Detail

    - #### map

          public void map(String key,
                 WebPage page,
                 Mapper.Context context)
                   throws IOException,
                          InterruptedException

      Overrides:
        `map` in class `Mapper<String,WebPage,UrlWithScore,NutchWritable>`
      Throws:
        `IOException`
        `InterruptedException`

    - #### setup

          public void setup(Mapper.Context context)

      Overrides:
        `setup` in class `Mapper<String,WebPage,UrlWithScore,NutchWritable>`

Copyright © 2015 The Apache Software Foundation