edu.umn.cs.spatialHadoop.operations

Class ConvexHull.IdentityMapper

java.lang.Object

MapReduceBase

edu.umn.cs.spatialHadoop.operations.ConvexHull.IdentityMapper

Enclosing class:

ConvexHull

public static class ConvexHull.IdentityMapper
extends MapReduceBase

An identity map function that returns values as-is with a null key. This ensures that all values are reduced in one reducer.

Author:

Ahmed Eldawy

Constructor Summary

Constructors

Constructor and Description
ConvexHull.IdentityMapper()

Method Summary

Methods

Modifier and Type	Method and Description
void	map(Rectangle dummy, Point point, output, Reporter reporter)

Methods inherited from class java.lang.Object

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

Constructor Detail

ConvexHull.IdentityMapper

public ConvexHull.IdentityMapper()

Method Detail

map

public void map(Rectangle dummy,
       Point point,
        output,
       Reporter reporter)
         throws java.io.IOException

Throws:

java.io.IOException