tl.lin.data.array

Class DoubleArrayWritable

java.lang.Object

tl.lin.data.array.DoubleArrayWritable

All Implemented Interfaces:

org.apache.hadoop.io.Writable

public class DoubleArrayWritable
extends Object
implements org.apache.hadoop.io.Writable

Constructor Summary

Constructors

Constructor and Description
DoubleArrayWritable()
DoubleArrayWritable(double[] array) Constructor with array as input.
DoubleArrayWritable(double[] array, int length) Constructor with array as input and with a specific size.
DoubleArrayWritable(int size) Constructor that creates an empty array of a particular size.

Method Summary

Methods

Modifier and Type	Method and Description
double	get(int i) Returns the value at index i.
double[]	getArray() Returns a reference to the underlying array.
double[]	getClone() Returns a deep copy of the array.
void	readFields(DataInput in)
void	set(int i, double v) Sets the value at index i.
void	setArray(double[] array) Sets the underlying array.
void	setArray(double[] array, int length) Sets the underlying array and a specified length.
int	size() Returns the size of the float array.
String	toString()
void	write(DataOutput out)

Methods inherited from class java.lang.Object

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

Constructor Detail

DoubleArrayWritable

public DoubleArrayWritable()

DoubleArrayWritable

public DoubleArrayWritable(double[] array)

Constructor with array as input.

Parameters:

array - input array

DoubleArrayWritable

public DoubleArrayWritable(double[] array,
                   int length)

Constructor with array as input and with a specific size.

Parameters:

array - input array

length - length

DoubleArrayWritable

public DoubleArrayWritable(int size)

Constructor that creates an empty array of a particular size.

Parameters:

size - array size

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

getClone

public double[] getClone()

Returns a deep copy of the array. The length of the returned array will always be the value size(). That is, trailing unused space in the underlying array will be trimmed.

getArray

public double[] getArray()

Returns a reference to the underlying array. Note that the underlying array may have length longer than the value of size().

setArray

public void setArray(double[] array)

Sets the underlying array.

setArray

public void setArray(double[] array,
            int length)

Sets the underlying array and a specified length.

get

public double get(int i)

Returns the value at index i. Note that no bounds checking is performed.

Parameters:

i - index position

set

public void set(int i,
       double v)

Sets the value at index i.

Parameters:

i - position in array

v - value

size

public int size()

Returns the size of the float array.

toString

public String toString()

Overrides:

toString in class Object