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https://issues.apache.org/jira/browse/BEANUTILS-352?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12735356#action_12735356
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Henri Yandell commented on BEANUTILS-352:
-----------------------------------------
Moved over to BeanUtils as BeanComparator lives there. At first glance seems
like a fine utility method to save developer time.
> Sorting the collection based on bean property in "CollectionUtils"
> ------------------------------------------------------------------
>
> Key: BEANUTILS-352
> URL: https://issues.apache.org/jira/browse/BEANUTILS-352
> Project: Commons BeanUtils
> Issue Type: Improvement
> Components: Bean-Collections
> Environment: JDK 1.5 and above , Apache Collections
> Reporter: Ganesh Gowtham
> Priority: Minor
>
> Hi Folks ,
> Thanks for your good work done in Collection Framework .
> It would be good if you add functionality to sort the collection based on
> bean's property name . ( CollectionsUtils,java)
> For example i have List<Person> , i should be able to sort (ascending or
> desending ) based on person's salary (or) firstName (or) lastName (or) may be
> the combination of above
> below is the equivalent in SQL
> (select * from person order by salary,firtsName,lastName asc )
> method looks like
> public static <T> void sort(List<T> list, boolean isAscending,String...
> beanPropertyName) {
> Collection<Comparator<T>> beanComparatorCollection = new
> ArrayList<Comparator<T>>(beanPropertyName.length);
> for(int i =0;i<beanPropertyName.length;i++)
> {
> beanComparatorCollection.add(new
> BeanComparator(beanPropertyName[i]));
> }
> Comparator<T> finalComparator =
> ComparatorUtils.chainedComparator(beanComparatorCollection);
> if (!isAscending) {
> finalComparator = new
> ReverseComparator(finalComparator);
> }
> Collections.sort(list, finalComparator);
> }
> Please let me know if you need any details , infact i able to submit patch
> too .
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