OrderComparator (Spring Framework API 2.1) - Spring Framework 2.1.0 API 文档英文版

Overview

Package

Class

Use

Tree

Deprecated

Index

Help

The Spring Framework

PREV CLASS NEXT CLASS

FRAMES NO FRAMES

SUMMARY: NESTED | FIELD | CONSTR | METHOD

DETAIL: FIELD | CONSTR | METHOD

org.springframework.core
Class OrderComparator

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

All Implemented Interfaces:: Comparator

Direct Known Subclasses:: AnnotationAwareOrderComparator

public class OrderComparator
extends Object
implements Comparator
extends Object
implements Comparator

Comparator implementation for Ordered objects, sorting by order value ascending (resp. by priority descending).

Non-Ordered objects are treated as greatest order values, thus ending up at the end of the list, in arbitrary order (just like same order values of Ordered objects).

Since:: 07.04.2003
Author:: Juergen Hoeller
See Also:: Ordered, Collections.sort(java.util.List, java.util.Comparator), Arrays.sort(Object[], java.util.Comparator)

Constructor Summary

OrderComparator()


Method Summary

int compare(Object o1, Object o2)


protected int getOrder(Object obj)
          Determine the order value for the given object.

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

Constructor Summary
`OrderComparator()`

Method Summary
`int`	`compare(Object o1, Object o2)`
`protected int`	`getOrder(Object obj)` Determine the order value for the given object.

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`

Constructor Detail

OrderComparator

public OrderComparator()

Method Detail

compare

public int compare(Object o1,
                   Object o2)

Specified by:: compare in interface Comparator

getOrder

protected int getOrder(Object obj)

Determine the order value for the given object.

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

Parameters:: obj - the object to check
Returns:: the order value, or Ordered.LOWEST_PRECEDENCE as fallback