org.apache.mahout.ga.watchmaker.cd.tool
Class ToolMapper
java.lang.Object
org.apache.hadoop.mapred.MapReduceBase
org.apache.mahout.ga.watchmaker.cd.tool.ToolMapper
- All Implemented Interfaces:
- java.io.Closeable, org.apache.hadoop.mapred.JobConfigurable, org.apache.hadoop.mapred.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text>
public class ToolMapper
- extends org.apache.hadoop.mapred.MapReduceBase
- implements org.apache.hadoop.mapred.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text>
Extract the attribute values from a dataline. Skip ignored attributes
Input:
- LongWritable : data row index
- Text : dataline
Output:
- LongWritable : attribute index.
ignored attributes aren't taken into account when calculating this index.
- Text : attribute value
See Descriptors, for more informations about the job parameter
Method Summary |
void |
configure(org.apache.hadoop.mapred.JobConf job)
|
void |
map(org.apache.hadoop.io.LongWritable key,
org.apache.hadoop.io.Text value,
org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text> output,
org.apache.hadoop.mapred.Reporter reporter)
|
Methods inherited from class org.apache.hadoop.mapred.MapReduceBase |
close |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface java.io.Closeable |
close |
ATTRIBUTES
public static final java.lang.String ATTRIBUTES
- See Also:
- Constant Field Values
ToolMapper
public ToolMapper()
configure
public void configure(org.apache.hadoop.mapred.JobConf job)
- Specified by:
configure
in interface org.apache.hadoop.mapred.JobConfigurable
- Overrides:
configure
in class org.apache.hadoop.mapred.MapReduceBase
map
public void map(org.apache.hadoop.io.LongWritable key,
org.apache.hadoop.io.Text value,
org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text> output,
org.apache.hadoop.mapred.Reporter reporter)
throws java.io.IOException
- Specified by:
map
in interface org.apache.hadoop.mapred.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text>
- Throws:
java.io.IOException
Copyright © 2008-2010 The Apache Software Foundation. All Rights Reserved.