org.incava.ijdk.lang

Interface Comparing<T>

Type Parameters:

T - the type

All Superinterfaces:

java.lang.Comparable<T>

All Known Implementing Classes:

DefaultComparing, Str, Version

public interface Comparing<T>
extends java.lang.Comparable<T>

Extensions to the Comparable interface. This normalizes the return value to -1, 0, and 1, and adds the methods lt, lte, gt, gte, which parallel the equals method. This is similar to Ruby, where defining the <=> method (the "spaceship" method) results in the equivalent generation of <, <=, etc.

Method Summary

Modifier and Type	Method and Description
int	compareTo(T other) Compares the two objects, including testing for null.
boolean	gt(T other) Returns whether x is greater than y.
boolean	gte(T other) Returns whether x is greater than or equal to y.
boolean	lt(T other) Returns whether x is less than y.
boolean	lte(T other) Returns whether x is less than or equal to y.

Method Detail

compareTo

int compareTo(T other)

Compares the two objects, including testing for null.

Specified by:

compareTo in interface java.lang.Comparable<T>

Parameters:

other - the other value

Returns:

less than zero, zero, or greater than zero

lt

boolean lt(T other)

Returns whether x is less than y.

Parameters:

other - the other value

Returns:

the comparison value

lte

boolean lte(T other)

Returns whether x is less than or equal to y.

Parameters:

other - the other value

Returns:

the comparison value

gt

boolean gt(T other)

Returns whether x is greater than y.

Parameters:

other - the other value

Returns:

the comparison value

gte

boolean gte(T other)

Returns whether x is greater than or equal to y.

Parameters:

other - the other value

Returns:

the comparison value