Package org.apache.sysds.runtime.frame.data.columns

Class ColumnMetadata

java.lang.Object

org.apache.sysds.runtime.frame.data.columns.ColumnMetadata

All Implemented Interfaces:

Serializable, org.apache.hadoop.io.Writable

public class ColumnMetadata
extends Object
implements Serializable, org.apache.hadoop.io.Writable

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
ColumnMetadata()	Default constructor
ColumnMetadata(long ndistinct)
ColumnMetadata(long ndistinct, String mvVal)
ColumnMetadata(ColumnMetadata that)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object that)
boolean	equals(ColumnMetadata that)
long	getExactSerializedSize()
long	getInMemorySize()
String	getMvValue()
long	getNumDistinct()
boolean	isDefault()
static ColumnMetadata	read(DataInput in)
void	readFields(DataInput in)
void	setMvValue(String mvVal)
void	setNumDistinct(long ndistinct)
String	toString()
void	write(DataOutput out)

Methods inherited from class java.lang.Object

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

Constructor Details

ColumnMetadata

public ColumnMetadata()

Default constructor

ColumnMetadata

public ColumnMetadata(long ndistinct)

ColumnMetadata

public ColumnMetadata(long ndistinct,
 String mvVal)

ColumnMetadata

public ColumnMetadata(ColumnMetadata that)

Method Details

getNumDistinct

public long getNumDistinct()

setNumDistinct

public void setNumDistinct(long ndistinct)

getMvValue

public String getMvValue()

setMvValue

public void setMvValue(String mvVal)

isDefault

public boolean isDefault()

getInMemorySize

public long getInMemorySize()

getExactSerializedSize

public long getExactSerializedSize()

write

public void write(DataOutput out)
           throws IOException

Specified by:

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

Throws:

IOException

readFields

public void readFields(DataInput in)
                throws IOException

Specified by:

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

Throws:

IOException

read

public static ColumnMetadata read(DataInput in)
                           throws IOException

Throws:

IOException

equals

public boolean equals(Object that)

Overrides:

equals in class Object

equals

public boolean equals(ColumnMetadata that)

toString

public String toString()

Overrides:

toString in class Object