com.intel.hadoop.graphbuilder.preprocess.mapreduce
Class EdgeTransformMapper<VidType extends org.apache.hadoop.io.WritableComparable<VidType>>
java.lang.Object
org.apache.hadoop.mapred.MapReduceBase
com.intel.hadoop.graphbuilder.preprocess.mapreduce.EdgeTransformMapper<VidType>
- Type Parameters:
VidType
-
- 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,VidType,PairListType>
public class EdgeTransformMapper<VidType extends org.apache.hadoop.io.WritableComparable<VidType>>
- extends org.apache.hadoop.mapred.MapReduceBase
- implements org.apache.hadoop.mapred.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,VidType,PairListType>
This Mapper class maps each edge (u,v,data) into (u, (v, data)) or (v, (u,
data)) based on reduceEndPoint
parameter in the JobConf configured in
EdgeTrandFormMR
.
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<VidType,PairListType> out,
org.apache.hadoop.mapred.Reporter report)
|
Methods inherited from class org.apache.hadoop.mapred.MapReduceBase |
close |
Methods inherited from class java.lang.Object |
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface java.io.Closeable |
close |
EdgeTransformMapper
public EdgeTransformMapper()
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<VidType,PairListType> out,
org.apache.hadoop.mapred.Reporter report)
throws java.io.IOException
- Specified by:
map
in interface org.apache.hadoop.mapred.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,VidType extends org.apache.hadoop.io.WritableComparable<VidType>,PairListType>
- Throws:
java.io.IOException