org.datavec.api.transform.sequence.comparator

Class NumericalColumnComparator

java.lang.Object

org.datavec.api.transform.sequence.comparator.BaseColumnComparator

org.datavec.api.transform.sequence.comparator.NumericalColumnComparator

All Implemented Interfaces:

Serializable, Comparator<List<Writable>>, ColumnOp, SequenceComparator

public class NumericalColumnComparator
extends BaseColumnComparator

Sequence comparator: compare elements in a sequence using the values in a single column Can be applied on any numerical column (Integer, Long, Double or Time columns)

Author:

Alex Black

See Also:

Serialized Form

Field Summary

Fields inherited from class org.datavec.api.transform.sequence.comparator.BaseColumnComparator

columnIdx, columnName, schema

Constructor Summary

Constructors

Constructor and Description
NumericalColumnComparator(String columnName)
NumericalColumnComparator(String columnName, boolean ascending)

Method Summary

Modifier and Type	Method and Description
protected int	compare(Writable w1, Writable w2)
void	setSchema(Schema sequenceSchema)
String	toString()

Methods inherited from class org.datavec.api.transform.sequence.comparator.BaseColumnComparator

columnName, columnNames, compare, getInputSchema, outputColumnName, outputColumnNames, setInputSchema, transform

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Detail

NumericalColumnComparator

public NumericalColumnComparator(String columnName)

NumericalColumnComparator

public NumericalColumnComparator(String columnName,
                                 boolean ascending)

Method Detail

setSchema

public void setSchema(Schema sequenceSchema)

Specified by:

setSchema in interface SequenceComparator

Overrides:

setSchema in class BaseColumnComparator

compare

protected int compare(Writable w1,
                      Writable w2)

Specified by:

compare in class BaseColumnComparator

toString

public String toString()

Overrides:

toString in class Object