org.apache.mahout.cf.taste.hadoop.preparation
Class ToItemVectorsMapper
java.lang.Object
org.apache.hadoop.mapreduce.Mapper<VarLongWritable,VectorWritable,org.apache.hadoop.io.IntWritable,VectorWritable>
org.apache.mahout.cf.taste.hadoop.preparation.ToItemVectorsMapper
public class ToItemVectorsMapper
- extends org.apache.hadoop.mapreduce.Mapper<VarLongWritable,VectorWritable,org.apache.hadoop.io.IntWritable,VectorWritable>
Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Mapper |
org.apache.hadoop.mapreduce.Mapper.Context |
Method Summary |
protected void |
map(VarLongWritable rowIndex,
VectorWritable vectorWritable,
org.apache.hadoop.mapreduce.Mapper.Context ctx)
|
protected void |
setup(org.apache.hadoop.mapreduce.Mapper.Context ctx)
|
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 |
SAMPLE_SIZE
public static final String SAMPLE_SIZE
ToItemVectorsMapper
public ToItemVectorsMapper()
setup
protected void setup(org.apache.hadoop.mapreduce.Mapper.Context ctx)
throws IOException,
InterruptedException
- Overrides:
setup
in class org.apache.hadoop.mapreduce.Mapper<VarLongWritable,VectorWritable,org.apache.hadoop.io.IntWritable,VectorWritable>
- Throws:
IOException
InterruptedException
map
protected void map(VarLongWritable rowIndex,
VectorWritable vectorWritable,
org.apache.hadoop.mapreduce.Mapper.Context ctx)
throws IOException,
InterruptedException
- Overrides:
map
in class org.apache.hadoop.mapreduce.Mapper<VarLongWritable,VectorWritable,org.apache.hadoop.io.IntWritable,VectorWritable>
- Throws:
IOException
InterruptedException
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