de.alpharogroup.comparators

Class SortOrderComparator<T extends Comparable<T>>

java.lang.Object

de.alpharogroup.comparators.SortOrderComparator<T>

Type Parameters:

T - the generic type of the object to compare

All Implemented Interfaces:

Comparator<T>

public class SortOrderComparator<T extends Comparable<T>>
extends Object
implements Comparator<T>

The abstract class SortOrderComparator can be extended for adding the sort order ascending or descending. The default sort order is ascending.

Field Summary

Fields

Modifier and Type	Field and Description
static SortOrder	DEFAULT_SORT_ORDER The constant default sort order.

Constructor Summary

Constructors

Constructor and Description
SortOrderComparator() Instantiates a new SortOrderComparator with the default sort order.
SortOrderComparator(SortOrder sortOrder) Instantiates a new SortOrderComparator with the given sort order.

Method Summary

Modifier and Type	Method and Description
int	compare(T object, T compareWithObject)
static <T extends Comparable<T>> Comparator<T>	of() Factory method to create a new SortOrderComparator with the default sort order.
static <T extends Comparable<T>> Comparator<T>	of(SortOrder sortOrder) Factory method to create a new SortOrderComparator with the default sort order.

Methods inherited from class java.lang.Object

clone, equals, finalize, 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

Field Detail

DEFAULT_SORT_ORDER

public static final SortOrder DEFAULT_SORT_ORDER

The constant default sort order.

Constructor Detail

SortOrderComparator

public SortOrderComparator()

Instantiates a new SortOrderComparator with the default sort order.

SortOrderComparator

public SortOrderComparator(SortOrder sortOrder)

Instantiates a new SortOrderComparator with the given sort order.

Parameters:

sortOrder - the sort order

Method Detail

of

public static <T extends Comparable<T>> Comparator<T> of()

Factory method to create a new SortOrderComparator with the default sort order.

Type Parameters:

T - the generic type of the object to compare

Returns:

the new Comparator object

of

public static <T extends Comparable<T>> Comparator<T> of(SortOrder sortOrder)

Factory method to create a new SortOrderComparator with the default sort order.

Type Parameters:

T - the generic type of the object to compare

Parameters:

sortOrder - the sort order

Returns:

the new Comparator object

compare

public int compare(T object,
                   T compareWithObject)

Specified by:

compare in interface Comparator<T extends Comparable<T>>