org.apache.mahout.text
Class SequenceFilesFromLuceneStorageMapper
java.lang.Object
org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.Text,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>
org.apache.mahout.text.SequenceFilesFromLuceneStorageMapper
public class SequenceFilesFromLuceneStorageMapper
- extends org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.Text,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>
Maps document IDs to key value pairs with ID field as the key and the concatenated stored field(s)
as value.
Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Mapper |
org.apache.hadoop.mapreduce.Mapper.Context |
Method Summary |
protected void |
cleanup(org.apache.hadoop.mapreduce.Mapper.Context context)
|
protected void |
map(org.apache.hadoop.io.Text key,
org.apache.hadoop.io.NullWritable text,
org.apache.hadoop.mapreduce.Mapper.Context context)
|
protected void |
setup(org.apache.hadoop.mapreduce.Mapper.Context context)
|
Methods inherited from class org.apache.hadoop.mapreduce.Mapper |
run |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
SequenceFilesFromLuceneStorageMapper
public SequenceFilesFromLuceneStorageMapper()
setup
protected void setup(org.apache.hadoop.mapreduce.Mapper.Context context)
throws IOException,
InterruptedException
- Overrides:
setup
in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.Text,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>
- Throws:
IOException
InterruptedException
map
protected void map(org.apache.hadoop.io.Text key,
org.apache.hadoop.io.NullWritable text,
org.apache.hadoop.mapreduce.Mapper.Context context)
throws IOException,
InterruptedException
- Overrides:
map
in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.Text,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>
- Throws:
IOException
InterruptedException
cleanup
protected void cleanup(org.apache.hadoop.mapreduce.Mapper.Context context)
throws IOException,
InterruptedException
- Overrides:
cleanup
in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.Text,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>
- Throws:
IOException
InterruptedException
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