Package org.hisp.dhis.util

Class Comparing

java.lang.Object

org.hisp.dhis.util.Comparing

public class Comparing
extends Object

Generic utility class for null-safe comparison.

Constructor Summary

Constructors

Constructor	Description
Comparing()

Method Summary

Modifier and Type	Method	Description
static <T extends Comparable<T>> int	compareTo(T a, T b)	Compares two objects for order.
static <T extends Comparable<T>> int	compareToNullLast(T a, T b)	Compares two objects for order.

Methods inherited from class java.lang.Object

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

Constructor Details

Comparing

public Comparing()

Method Details

compareTo

public static <T extends Comparable<T>> int compareTo(T a,
 T b)

Compares two objects for order. Returns a negative integer, zero, or a positive integer if the first object is less than, equal to, or greater than the second object. Any of the objects can be null. A null value is considered to be less than a non-null value.

Type Parameters:

T - the type.

Parameters:

a - the first object.

b - the second object.

Returns:

an integer value.

compareToNullLast

public static <T extends Comparable<T>> int compareToNullLast(T a,
 T b)

Compares two objects for order. Returns a negative integer, zero, or a positive integer if the first object is less than, equal to, or greater than the second object. Any of the objects can be null. A null value is considered to be greater than a non-null value.

Type Parameters:

T - the type.

Parameters:

a - the first object.

b - the second object.

Returns:

an integer value.