Package org.apache.sysds.runtime.matrix.data

Class MatrixIndexes

java.lang.Object

org.apache.sysds.runtime.matrix.data.MatrixIndexes

All Implemented Interfaces:

Externalizable, Serializable, Comparable<MatrixIndexes>, Comparator<MatrixIndexes>, org.apache.hadoop.io.RawComparator<MatrixIndexes>, org.apache.hadoop.io.Writable, org.apache.hadoop.io.WritableComparable<MatrixIndexes>

public class MatrixIndexes
extends Object
implements org.apache.hadoop.io.WritableComparable<MatrixIndexes>, org.apache.hadoop.io.RawComparator<MatrixIndexes>, Externalizable

This represent the indexes to the blocks of the matrix. Please note that these indexes are 1-based, whereas the data in the block are zero-based (as they are double arrays).

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
MatrixIndexes()
MatrixIndexes(long r, long c)
MatrixIndexes(MatrixIndexes indexes)

Method Summary

Modifier and Type	Method	Description
int	compare(byte[] b1, int s1, int l1, byte[] b2, int s2, int l2)
int	compare(MatrixIndexes m1, MatrixIndexes m2)
int	compareTo(MatrixIndexes other)
boolean	equals(Object other)
MatrixIndexes	fromString(String ix)
long	getColumnIndex()
long	getRowIndex()
int	hashCode()
void	readExternal(ObjectInput is)	Redirects the default java serialization via externalizable to our default hadoop writable serialization for consistency/maintainability.
void	readFields(DataInput in)
MatrixIndexes	setIndexes(long r, long c)
MatrixIndexes	setIndexes(MatrixIndexes that)
String	toString()
void	write(DataOutput out)
void	writeExternal(ObjectOutput os)	Redirects the default java serialization via externalizable to our default hadoop writable serialization for consistency/maintainability.

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Comparator

reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Details

MatrixIndexes

public MatrixIndexes()

MatrixIndexes

public MatrixIndexes(long r,
 long c)

MatrixIndexes

public MatrixIndexes(MatrixIndexes indexes)

Method Details

getRowIndex

public long getRowIndex()

getColumnIndex

public long getColumnIndex()

setIndexes

public MatrixIndexes setIndexes(long r,
 long c)

setIndexes

public MatrixIndexes setIndexes(MatrixIndexes that)

compareTo

public int compareTo(MatrixIndexes other)

Specified by:

compareTo in interface Comparable<MatrixIndexes>

equals

public boolean equals(Object other)

Specified by:

equals in interface Comparator<MatrixIndexes>

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object

fromString

public MatrixIndexes fromString(String ix)

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

readExternal

public void readExternal(ObjectInput is)
                  throws IOException

Redirects the default java serialization via externalizable to our default hadoop writable serialization for consistency/maintainability.

Specified by:

readExternal in interface Externalizable

Parameters:

is - object input

Throws:

IOException - if IOException occurs

writeExternal

public void writeExternal(ObjectOutput os)
                   throws IOException

Redirects the default java serialization via externalizable to our default hadoop writable serialization for consistency/maintainability.

Specified by:

writeExternal in interface Externalizable

Parameters:

os - object output

Throws:

IOException - if IOException occurs

compare

public int compare(byte[] b1,
 int s1,
 int l1,
 byte[] b2,
 int s2,
 int l2)

Specified by:

compare in interface org.apache.hadoop.io.RawComparator<MatrixIndexes>

compare

public int compare(MatrixIndexes m1,
 MatrixIndexes m2)

Specified by:

compare in interface Comparator<MatrixIndexes>