org.apache.sysds.runtime.compress.colgroup.mapping

Class MapToByte

java.lang.Object

org.apache.sysds.runtime.compress.colgroup.mapping.AMapToData

org.apache.sysds.runtime.compress.colgroup.mapping.MapToByte

All Implemented Interfaces:

Serializable

public class MapToByte
extends AMapToData

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
MapToByte(int unique, int size)

Method Summary

Modifier and Type	Method and Description
void	copy(AMapToData d)
void	fill(int v)
byte[]	getBytes()
long	getExactSizeOnDisk()
int	getIndex(int n)
long	getInMemorySize()
static long	getInMemorySize(int dataLength)
static MapToByte	readFields(DataInput in)
void	replace(int v, int r) Replace v with r for all entries, note that it is assumed that you call this correctly, with two distinct values.
void	set(int n, int v)
int	size()
void	write(DataOutput out)

Methods inherited from class org.apache.sysds.runtime.compress.colgroup.mapping.AMapToData

getUnique, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

MapToByte

public MapToByte(int unique,
                 int size)

Method Detail

getIndex

public int getIndex(int n)

Specified by:

getIndex in class AMapToData

fill

public void fill(int v)

Specified by:

fill in class AMapToData

getInMemorySize

public long getInMemorySize()

Specified by:

getInMemorySize in class AMapToData

getInMemorySize

public static long getInMemorySize(int dataLength)

getExactSizeOnDisk

public long getExactSizeOnDisk()

Specified by:

getExactSizeOnDisk in class AMapToData

set

public void set(int n,
                int v)

Specified by:

set in class AMapToData

size

public int size()

Specified by:

size in class AMapToData

write

public void write(DataOutput out)
           throws IOException

Specified by:

write in class AMapToData

Throws:

IOException

readFields

public static MapToByte readFields(DataInput in)
                            throws IOException

Throws:

IOException

getBytes

public byte[] getBytes()

replace

public void replace(int v,
                    int r)

Description copied from class: AMapToData

Replace v with r for all entries, note that it is assumed that you call this correctly, with two distinct values. That is representable inside the given AMapToData.

Specified by:

replace in class AMapToData

Parameters:

v - v the value to replace

r - r the value to put instead

copy

public void copy(AMapToData d)

Overrides:

copy in class AMapToData