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Added dedicated sort method to AnnotationAwareOrderComparator 

Issue: SPR-9625
This commit is contained in:
Juergen Hoeller 2013-01-10 16:47:27 +01:00 committed by unknown
parent f6d7518013
commit dae4485155
1 changed files with 33 additions and 2 deletions
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35
spring-core/src/main/java/org/springframework/core/annotation/AnnotationAwareOrderComparator.java
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@ -1,5 +1,5 @@
/*
* Copyright 2002-2012 the original author or authors.
* Copyright 2002-2013 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -16,6 +16,10 @@
package org.springframework.core.annotation;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import org.springframework.core.OrderComparator;
import org.springframework.core.Ordered;
@ -37,7 +41,7 @@ public class AnnotationAwareOrderComparator extends OrderComparator {
/**
* Shared default instance of AnnotationAwareOrderComparator.
*/
public static AnnotationAwareOrderComparator INSTANCE = new AnnotationAwareOrderComparator();
public static final AnnotationAwareOrderComparator INSTANCE = new AnnotationAwareOrderComparator();
@Override
@ -54,4 +58,31 @@ public class AnnotationAwareOrderComparator extends OrderComparator {
return Ordered.LOWEST_PRECEDENCE;
}
/**
* Sort the given List with a default AnnotationAwareOrderComparator.
* <p>Optimized to skip sorting for lists with size 0 or 1,
* in order to avoid unnecessary array extraction.
* @param list the List to sort
* @see java.util.Collections#sort(java.util.List, java.util.Comparator)
*/
public static void sort(List<?> list) {
if (list.size() > 1) {
Collections.sort(list, INSTANCE);
}
}
/**
* Sort the given array with a default AnnotationAwareOrderComparator.
* <p>Optimized to skip sorting for lists with size 0 or 1,
* in order to avoid unnecessary array extraction.
* @param array the array to sort
* @see java.util.Arrays#sort(Object[], java.util.Comparator)
*/
public static void sort(Object[] array) {
if (array.length > 1) {
Arrays.sort(array, INSTANCE);
}
}
}