org.apache.mahout.cf.taste.example.email
Class MailToRecReducer
java.lang.Object
org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.Text,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.NullWritable>
org.apache.mahout.cf.taste.example.email.MailToRecReducer
public class MailToRecReducer
- extends org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.Text,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.NullWritable>
Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Reducer |
org.apache.hadoop.mapreduce.Reducer.Context |
Field Summary |
static String |
USE_COUNTS_PREFERENCE
We can either ignore how many times the user interacted (boolean) or output the number of times they interacted. |
Method Summary |
protected void |
reduce(org.apache.hadoop.io.Text key,
Iterable<org.apache.hadoop.io.LongWritable> values,
org.apache.hadoop.mapreduce.Reducer.Context context)
|
protected void |
setup(org.apache.hadoop.mapreduce.Reducer.Context context)
|
Methods inherited from class org.apache.hadoop.mapreduce.Reducer |
cleanup, run |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
USE_COUNTS_PREFERENCE
public static final String USE_COUNTS_PREFERENCE
- We can either ignore how many times the user interacted (boolean) or output the number of times they interacted.
- See Also:
- Constant Field Values
MailToRecReducer
public MailToRecReducer()
setup
protected void setup(org.apache.hadoop.mapreduce.Reducer.Context context)
throws IOException,
InterruptedException
- Overrides:
setup
in class org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.Text,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.NullWritable>
- Throws:
IOException
InterruptedException
reduce
protected void reduce(org.apache.hadoop.io.Text key,
Iterable<org.apache.hadoop.io.LongWritable> values,
org.apache.hadoop.mapreduce.Reducer.Context context)
throws IOException,
InterruptedException
- Overrides:
reduce
in class org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.Text,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.NullWritable>
- Throws:
IOException
InterruptedException
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