程序包 cn.taketoday.core.annotation

类 AnnotationAwareOrderComparator

java.lang.Object

cn.taketoday.core.OrderComparator

cn.taketoday.core.annotation.AnnotationAwareOrderComparator

所有已实现的接口:

Comparator<Object>

public class AnnotationAwareOrderComparator
extends OrderComparator

AnnotationAwareOrderComparator is an extension of OrderComparator that supports Ordered interface as well as the @Order and @Priority annotations, with an order value provided by an Ordered instance overriding a statically defined annotation value (if any).

Consult the Javadoc for OrderComparator for details on the sort semantics for non-ordered objects.

从以下版本开始:

4.0 2021/9/12 11:35

作者:

Juergen Hoeller, Oliver Gierke, Stephane Nicoll, Harry Yang

另请参阅:

• Ordered
• Order
• Priority

字段概要

字段

修饰符和类型	字段	说明
static final AnnotationAwareOrderComparator	INSTANCE	Shared default instance of AnnotationAwareOrderComparator.

构造器概要

构造器

构造器	说明
AnnotationAwareOrderComparator()

方法概要

修饰符和类型	方法	说明
protected Integer	findOrder(Object obj)	This implementation checks for @Order or @Priority on various kinds of elements, in addition to the Ordered check in the superclass.
private Integer	findOrderFromAnnotation(Object obj)
Integer	getPriority(Object obj)	This implementation retrieves an @Priority value, allowing for additional semantics over the regular @Order annotation: typically, selecting one object over another in case of multiple matches but only one object to be returned.
static void	sort(Object[] array)	Sort the given array with a default AnnotationAwareOrderComparator.
static void	sort(List<?> list)	Sort the given list with a default AnnotationAwareOrderComparator.
static void	sortIfNecessary(Object value)	Sort the given array or List with a default AnnotationAwareOrderComparator, if necessary.

从类继承的方法 cn.taketoday.core.OrderComparator

compare, getOrder, withSourceProvider

从类继承的方法 java.lang.Object

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

从接口继承的方法 java.util.Comparator

equals, reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

字段详细资料

INSTANCE

public static final AnnotationAwareOrderComparator INSTANCE

Shared default instance of AnnotationAwareOrderComparator.

构造器详细资料

AnnotationAwareOrderComparator

public AnnotationAwareOrderComparator()

方法详细资料

findOrder

@Nullable
protected Integer findOrder(@Nullable
 Object obj)

This implementation checks for @Order or @Priority on various kinds of elements, in addition to the Ordered check in the superclass.

覆盖:

findOrder 在类中 OrderComparator

参数:

obj - the object to check

返回:

the order value, or null if none found

findOrderFromAnnotation

@Nullable
private Integer findOrderFromAnnotation(Object obj)

getPriority

@Nullable
public Integer getPriority(Object obj)

This implementation retrieves an @Priority value, allowing for additional semantics over the regular @Order annotation: typically, selecting one object over another in case of multiple matches but only one object to be returned.

覆盖:

getPriority 在类中 OrderComparator

参数:

obj - the object to check

返回:

the priority value, or null if none

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.

参数:

list - the List to sort

另请参阅:

• List.sort(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.

参数:

array - the array to sort

另请参阅:

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

sortIfNecessary

public static void sortIfNecessary(@Nullable
 Object value)

Sort the given array or List with a default AnnotationAwareOrderComparator, if necessary. Simply skips sorting when given any other value.

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

参数:

value - the array or List to sort

另请参阅:

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