org.locationtech.geowave.analytic.mapreduce

Class CountofDoubleWritable

java.lang.Object

org.locationtech.geowave.analytic.mapreduce.CountofDoubleWritable

All Implemented Interfaces:

Comparable, org.apache.hadoop.io.Writable, org.apache.hadoop.io.WritableComparable

public class CountofDoubleWritable
extends Object
implements org.apache.hadoop.io.Writable, org.apache.hadoop.io.WritableComparable

Used for (1) representation of collections (2) summation in a combiner (3) and finally, for computation of averages

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	CountofDoubleWritable.Comparator A Comparator optimized for DoubleWritable.

Constructor Summary

Constructors

Constructor and Description
CountofDoubleWritable()
CountofDoubleWritable(double value, double count)

Method Summary

Modifier and Type	Method and Description
int	compareTo(Object o)
boolean	equals(Object o) Returns true iff o is a DoubleWritable with the same value.
double	getCount()
double	getValue()
int	hashCode()
void	readFields(DataInput in)
void	set(double value, double count)
String	toString()
void	write(DataOutput out)

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

CountofDoubleWritable

public CountofDoubleWritable()

CountofDoubleWritable

public CountofDoubleWritable(double value,
                             double count)

Method Detail

readFields

public void readFields(DataInput in)
                throws IOException

Specified by:

readFields in interface org.apache.hadoop.io.Writable

Throws:

IOException

write

public void write(DataOutput out)
           throws IOException

Specified by:

write in interface org.apache.hadoop.io.Writable

Throws:

IOException

set

public void set(double value,
                double count)

getValue

public double getValue()

getCount

public double getCount()

equals

public boolean equals(Object o)

Returns true iff o is a DoubleWritable with the same value.

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

compareTo

public int compareTo(Object o)

Specified by:

compareTo in interface Comparable

toString

public String toString()

Overrides:

toString in class Object