de.erichseifert.gral.data.comparators

Class Descending

java.lang.Object

de.erichseifert.gral.data.comparators.DataComparator

de.erichseifert.gral.data.comparators.Descending

All Implemented Interfaces:

java.io.Serializable, java.util.Comparator<Record>

public class Descending
extends DataComparator

Class that represents a DataComparator for comparing two records at a defined index for descending order.

See Also:

DataTable.sort(DataComparator...), Serialized Form

Constructor Summary

Constructors

Constructor and Description
Descending(int col) Creates a new Descending object sorting according to the specified column.

Method Summary

Modifier and Type	Method and Description
int	compare(Record record1, Record record2) Compares the values of two records at the specified column for order and returns a corresponding integer:

Methods inherited from class de.erichseifert.gral.data.comparators.DataComparator

getColumn

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, 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

Descending

public Descending(int col)

Creates a new Descending object sorting according to the specified column.

Parameters:

col - Column index to be compared

Method Detail

compare

public int compare(Record record1,
                   Record record2)

Compares the values of two records at the specified column for order and returns a corresponding integer:

• a negative value means record1 is larger than record2
• 0 means record1 is equal to record2
• a positive value means record1 is smaller than record2

Parameters:

record1 - First value

record2 - Second value

Returns:

An integer number describing the order: a negative value if record1 is larger than record2, 0 if record1 is equal to record2, a positive value if record1 is smaller than record2,