io.micronaut.core.order

Class OrderUtil

java.lang.Object

io.micronaut.core.order.OrderUtil

public class OrderUtil
extends java.lang.Object

Apply the Ordered interface to lists or arrays.

Since:

1.0

Author:

Graeme Rocher

Field Summary

Fields

Modifier and Type	Field and Description
static java.util.Comparator<java.lang.Object>	COMPARATOR Provide a comparator for collections.
static java.util.Comparator<java.lang.Object>	REVERSE_COMPARATOR Provide a comparator, in reversed order, for collections.

Constructor Summary

Constructors

Constructor and Description
OrderUtil()

Method Summary

Modifier and Type	Method and Description
static int	getOrder(AnnotationMetadata annotationMetadata, java.lang.Object o) Get the order of the given object.
static int	getOrder(java.lang.Object o) Get the order for the given object.
static int	getOrder(Ordered o) Get the order for the given Ordered object.
static void	reverseSort(java.util.List<?> list) Sort the given list.
static void	reverseSort(java.lang.Object[] array) Sort the given array in reverse order.
static void	sort(java.util.List<?> list) Sort the given list.
static void	sort(java.lang.Object[] objects) Sort the given array.
static void	sort(Ordered... objects) Sort the given array.
static <T> java.util.stream.Stream<T>	sort(java.util.stream.Stream<T> list) Sort the given list.

Methods inherited from class java.lang.Object

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

Field Detail

COMPARATOR

public static final java.util.Comparator<java.lang.Object> COMPARATOR

Provide a comparator for collections.

REVERSE_COMPARATOR

public static final java.util.Comparator<java.lang.Object> REVERSE_COMPARATOR

Provide a comparator, in reversed order, for collections.

Constructor Detail

OrderUtil

public OrderUtil()

Method Detail

sort

public static void sort(java.util.List<?> list)

Sort the given list.

Parameters:

list - The list to sort

sort

public static <T> java.util.stream.Stream<T> sort(java.util.stream.Stream<T> list)

Sort the given list.

Type Parameters:

T - The stream generic type

Parameters:

list - The list to sort

Returns:

The sorted stream

reverseSort

public static void reverseSort(java.util.List<?> list)

Sort the given list.

Parameters:

list - The list to sort

reverseSort

public static void reverseSort(java.lang.Object[] array)

Sort the given array in reverse order.

Parameters:

array - The array to sort

sort

public static void sort(Ordered... objects)

Sort the given array.

Parameters:

objects - The array to sort

sort

public static void sort(java.lang.Object[] objects)

Sort the given array.

Parameters:

objects - The array to sort

getOrder

public static int getOrder(java.lang.Object o)

Get the order for the given object.

Parameters:

o - The object

Returns:

Ordered.getOrder() when object is instance of Ordered otherwise Ordered.LOWEST_PRECEDENCE

getOrder

public static int getOrder(AnnotationMetadata annotationMetadata,
                           java.lang.Object o)

Get the order of the given object. Objects implementing Ordered have precedence over annotation metadata with Order.

Parameters:

annotationMetadata - The annotation metadata

o - The object

Returns:

The order of the object. If no order is found, Ordered.LOWEST_PRECEDENCE is returned.

getOrder

public static int getOrder(Ordered o)

Get the order for the given Ordered object.

Parameters:

o - The ordered object

Returns:

the order