org.springframework.core.annotation

Class AnnotationAwareOrderComparator

java.lang.Object

org.springframework.core.OrderComparator

org.springframework.core.annotation.AnnotationAwareOrderComparator

All Implemented Interfaces:

Comparator<Object>

public class AnnotationAwareOrderComparator
extends OrderComparator

Comparator implementation that checks Ordered as well as the Order annotation, with an order value provided by an Ordered instance overriding a statically defined annotation value (if any).

Since:

2.0.1

Author:

Juergen Hoeller, Oliver Gierke

See Also:

Ordered, Order

Field Summary

Fields

Modifier and Type	Field and Description
static AnnotationAwareOrderComparator	INSTANCE Shared default instance of AnnotationAwareOrderComparator.

Constructor Summary

Constructors

Constructor and Description
AnnotationAwareOrderComparator()

Method Summary

Methods

Modifier and Type	Method and Description
protected int	getOrder(Object obj) Determine the order value for the given object.
static void	sort(List<?> list) Sort the given List with a default AnnotationAwareOrderComparator.
static void	sort(Object[] array) Sort the given array with a default AnnotationAwareOrderComparator.

Methods inherited from class org.springframework.core.OrderComparator

compare

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

equals

Field Detail

INSTANCE

public static final AnnotationAwareOrderComparator INSTANCE

Shared default instance of AnnotationAwareOrderComparator.

Constructor Detail

AnnotationAwareOrderComparator

public AnnotationAwareOrderComparator()

Method Detail

getOrder

protected int getOrder(Object obj)

Description copied from class: OrderComparator

Determine the order value for the given object.

The default implementation checks against the Ordered interface. Can be overridden in subclasses.

Overrides:

getOrder in class OrderComparator

Parameters:

obj - the object to check

Returns:

the order value, or Ordered.LOWEST_PRECEDENCE as fallback

sort

public static void sort(List<?> list)

Sort the given List with a default AnnotationAwareOrderComparator.

Optimized to skip sorting for lists with size 0 or 1, in order to avoid unnecessary array extraction.

Parameters:

list - the List to sort

See Also:

Collections.sort(java.util.List, java.util.Comparator)

sort

public static void sort(Object[] array)

Sort the given array with a default AnnotationAwareOrderComparator.

Optimized to skip sorting for lists with size 0 or 1, in order to avoid unnecessary array extraction.

Parameters:

array - the array to sort

See Also:

Arrays.sort(Object[], java.util.Comparator)