java.lang.Object
- org.springframework.core.OrderComparator

所有已实现的接口:
Comparator<Object>
直接已知子类:
AnnotationAwareOrderComparator
```
public class OrderComparator
extends Object
implements Comparator<Object>
```
Comparator implementation for Ordered objects, sorting by order value ascending, respectively by priority descending.
Same Order Objects
Objects that have the same order value will be sorted with arbitrary ordering with respect to other objects with the same order value.
Non-ordered Objects
Any object that does not provide its own order value is implicitly assigned a value of Ordered.LOWEST_PRECEDENCE, thus ending up at the end of a sorted collection in arbitrary order with respect to other objects with the same order value.
从以下版本开始:
07.04.2003
作者:
Juergen Hoeller, Sam Brannen
另请参阅:
Ordered, AnnotationAwareOrderComparator, Collections.sort(java.util.List, java.util.Comparator), Arrays.sort(Object[], java.util.Comparator)

嵌套类概要
嵌套类
修饰符和类型类说明
static interface OrderComparator.OrderSourceProvider
Strategy interface to provide an order source for a given object.

字段概要
字段
修饰符和类型字段说明
static OrderComparator INSTANCE
Shared default instance of OrderComparator.

构造器概要
构造器
构造器说明
OrderComparator()

方法概要

所有方法静态方法实例方法具体方法
修饰符和类型	方法	说明
`int`	`compare(Object o1, Object o2)`
`protected Integer`	`findOrder(Object obj)`	Find an order value indicated by the given object.
`protected int`	`getOrder(Object obj)`	Determine the order value for the given object.
`Integer`	`getPriority(Object obj)`	Determine a priority value for the given object, if any.
`static void`	`sort(Object[] array)`	Sort the given array with a default OrderComparator.
`static void`	`sort(List<?> list)`	Sort the given List with a default OrderComparator.
`static void`	`sortIfNecessary(Object value)`	Sort the given array or List with a default OrderComparator, if necessary.
`Comparator<Object>`	`withSourceProvider(OrderComparator.OrderSourceProvider sourceProvider)`	Build an adapted order comparator with the given source provider.

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 OrderComparator INSTANCE
```
    Shared default instance of OrderComparator.
- 构造器详细资料
  - OrderComparator
```
public OrderComparator()
```
- 方法详细资料
  - withSourceProvider
```
public Comparator<Object> withSourceProvider(OrderComparator.OrderSourceProvider sourceProvider)
```
    Build an adapted order comparator with the given source provider.
    参数:
    sourceProvider - the order source provider to use
    返回:
    the adapted comparator
    从以下版本开始:
    4.1
  - compare
```
public int compare(Object o1,
                   Object o2)
```
    指定者:
    compare 在接口中 Comparator<Object>
  - getOrder
```
protected int getOrder(Object obj)
```
    Determine the order value for the given object.
    The default implementation checks against the Ordered interface through delegating to findOrder(java.lang.Object). Can be overridden in subclasses.
    参数:
    obj - the object to check
    返回:
    the order value, or Ordered.LOWEST_PRECEDENCE as fallback
  - findOrder
```
protected Integer findOrder(Object obj)
```
    Find an order value indicated by the given object.
    The default implementation checks against the Ordered interface. Can be overridden in subclasses.
    参数:
    obj - the object to check
    返回:
    the order value, or null if none found
  - getPriority
```
public Integer getPriority(Object obj)
```
    Determine a priority value for the given object, if any.
    The default implementation always returns null. Subclasses may override this to give specific kinds of values a 'priority' characteristic, in addition to their 'order' semantics. A priority indicates that it may be used for selecting one object over another, in addition to serving for ordering purposes in a list/array.
    参数:
    obj - the object to check
    返回:
    the priority value, or null if none
    从以下版本开始:
    4.1
  - sort
```
public static void sort(List<?> list)
```
    Sort the given List with a default OrderComparator.
    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:
    Collections.sort(java.util.List, java.util.Comparator)
  - sort
```
public static void sort(Object[] array)
```
    Sort the given array with a default OrderComparator.
    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(Object value)
```
    Sort the given array or List with a default OrderComparator, 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)

类 OrderComparator

Same Order Objects

Non-ordered Objects

嵌套类概要

字段概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

从接口继承的方法 java.util.Comparator

字段详细资料

INSTANCE

构造器详细资料

OrderComparator

方法详细资料

withSourceProvider

compare

getOrder

findOrder

getPriority

sort

sort

sortIfNecessary