It's a part of BeanUtils, org.apache.commons.beanutils.BeanComparator I
think.

It doesn't take the class in the constructor, so will work on any class
with getBirthDate().

Hen

On Wed, 11 Feb 2004, Attila Szegedi wrote:

> Hi folks,
>
> there's one comparator I've been missing from the commons-collection: a
> comparator that uses a specified bean property of objects to perform the
> comparisons.
>
> Basically, it works like this: if you construct an instance with:
>
> Comparator c =
>   new BeanPropertyComparator(Customer.class, "birthDate");
>
> c will use the natural ordering on the values of Customer.getBirthDate() to
> compare Customer objects.
>
> There's an alternative constructor to specify an embedded comparator for
> comparing the retrieved property values:
>
> Comparator c =
>     new BeanPropertyComparator(
>        Customer.class, "birthDate", new ReverseComparator());
>
> Admittedly, the class is fairly trivial, but I already have it implemented
> and tested - would the project be interested in the contribution?
>
> Attila.
>
>
>
>
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