datafu.hourglass.mapreduce
Class DelegatingMapper
java.lang.Object
org.apache.hadoop.mapreduce.Mapper<java.lang.Object,java.lang.Object,java.lang.Object,java.lang.Object>
datafu.hourglass.mapreduce.DelegatingMapper
public class DelegatingMapper
- extends org.apache.hadoop.mapreduce.Mapper<java.lang.Object,java.lang.Object,java.lang.Object,java.lang.Object>
A Hadoop mapper which delegates to an implementation read from the distributed cache.
- Author:
- "Matthew Hayes"
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(java.lang.Object key,
java.lang.Object value,
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 |
DelegatingMapper
public DelegatingMapper()
setup
protected void setup(org.apache.hadoop.mapreduce.Mapper.Context context)
throws java.io.IOException,
java.lang.InterruptedException
- Overrides:
setup
in class org.apache.hadoop.mapreduce.Mapper<java.lang.Object,java.lang.Object,java.lang.Object,java.lang.Object>
- Throws:
java.io.IOException
java.lang.InterruptedException
map
protected void map(java.lang.Object key,
java.lang.Object value,
org.apache.hadoop.mapreduce.Mapper.Context context)
throws java.io.IOException,
java.lang.InterruptedException
- Overrides:
map
in class org.apache.hadoop.mapreduce.Mapper<java.lang.Object,java.lang.Object,java.lang.Object,java.lang.Object>
- Throws:
java.io.IOException
java.lang.InterruptedException
cleanup
protected void cleanup(org.apache.hadoop.mapreduce.Mapper.Context context)
throws java.io.IOException,
java.lang.InterruptedException
- Overrides:
cleanup
in class org.apache.hadoop.mapreduce.Mapper<java.lang.Object,java.lang.Object,java.lang.Object,java.lang.Object>
- Throws:
java.io.IOException
java.lang.InterruptedException
Matthew Hayes