Comparator plus comparator

Question

I have a set of beans OptionItemDTO (property label and value), and currently I'm using something like this to sort by label:

Collections.sort(combo, new LabelComparator())

The problem is that it does not sort stressed vowels (my language is Spanish).

But if I use collator sorting, I cannot use a comparator (and vice versa). Any ideas?

Thanks in advance!

+6

Lluis martinez Nov 30 '11 at 16:24

2 answers

I wrote a small structure for sorting collections of objects with CollationKeys (and not with Collators):

You just need to implement a localizer (or do a POJO to implement Localizable) to provide a string representation:

You can take a look at unit tests for some samples:

The library is open source.

 <dependency> <groupId>org.softsmithy.lib</groupId> <artifactId>lib-core</artifactId> <version>0.1</version> </dependency>

+2

Puce Nov 30 '11 at 19:28

Jb nizet · Accepted Answer · 2011-11-30T16:29:10+0000

Your LabelComparator must delegate the Collator to compare the labels of your DTOs:

 public int compare(OptionItemDTO dto1, OptionItemDTO dto2) { return collator.compare(dto1.getLabel(), dto2.getLabel()); }