oracle.spatial.hadoop.vector.cluster.kmeans.mapred

Class PointKeyInputFormat<K,V>

java.lang.Object

oracle.spatial.hadoop.vector.mapred.input.BaseCompositeInputFormat<PointWritable,org.apache.hadoop.io.NullWritable>

oracle.spatial.hadoop.vector.cluster.kmeans.mapred.PointKeyInputFormat<K,V>

Type Parameters:

K -

V -

All Implemented Interfaces:

AbstractCompositeInputFormat<PointWritable,org.apache.hadoop.io.NullWritable>, org.apache.hadoop.mapred.InputFormat<PointWritable,org.apache.hadoop.io.NullWritable>

public class PointKeyInputFormat<K,V>
extends BaseCompositeInputFormat<PointWritable,org.apache.hadoop.io.NullWritable>

InputFormat implementation that returns each input record with spatial information as single point. If the record's geometry is different than point, a centroid is calculated. This class is used along with KMeansSampler.

Field Summary

Fields inherited from class oracle.spatial.hadoop.vector.mapred.input.BaseCompositeInputFormat

iInputFormat

Constructor Summary

Constructors

Constructor and Description
PointKeyInputFormat()

Method Summary

Methods

Modifier and Type	Method and Description
org.apache.hadoop.mapred.RecordReader<PointWritable,org.apache.hadoop.io.NullWritable>	getRecordReader(org.apache.hadoop.mapred.InputSplit split, org.apache.hadoop.mapred.JobConf conf, org.apache.hadoop.mapred.Reporter reporter)

Methods inherited from class oracle.spatial.hadoop.vector.mapred.input.BaseCompositeInputFormat

createInternalInputFormat, createRecordInfoProvider, getInternalInputFormat, getInternalInputFormatClass, getRecordInfoProvider, getRecordInfoProviderClass, getSplits, setInternalInputFormatClass, setRecordInfoProviderClass

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PointKeyInputFormat

public PointKeyInputFormat()

Method Detail

getRecordReader

public org.apache.hadoop.mapred.RecordReader<PointWritable,org.apache.hadoop.io.NullWritable> getRecordReader(org.apache.hadoop.mapred.InputSplit split,
                                                                                                              org.apache.hadoop.mapred.JobConf conf,
                                                                                                              org.apache.hadoop.mapred.Reporter reporter)
                                                                                                       throws java.io.IOException

Throws:

java.io.IOException