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http://issues.apache.org/jira/browse/COLLECTIONS-8?page=comments#action_12445781
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Stepan Koltsov commented on COLLECTIONS-8:
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I think, that such predicate should have only three criterions: 1, 0, -1, for
greater, equals and less. GE and LE can be constructed as not(less),
not(greater). PredicateUtils should have methods:
Predicate greaterPredicate(Object) { ... }
Predicate lessPredicate(Object) { ... }
Predicate greaterOrEqualsPredicate(Object) { return
notPredicate(lessPredicate(object)); }
Predicate lessOrEqualsPredicate(Object) { return
notPredicate(greaterPredicate(object)); }
equality through comparator is not often needed, so need not to be exposed to
PredicateUtils.
> Comparator Predicate
> --------------------
>
> Key: COLLECTIONS-8
> URL: http://issues.apache.org/jira/browse/COLLECTIONS-8
> Project: Commons Collections
> Issue Type: New Feature
> Components: Functor
> Affects Versions: 3.1
> Environment: Operating System: other
> Platform: Other
> Reporter: Rune Peter Bjørnstad
> Priority: Minor
> Fix For: 3.3
>
> Attachments: ComparatorPredicate.diff, ComparatorPredicate.java
>
>
> A predicate that makes use of a Comparator object for evaluation is, in my
> opinion, missing in the functors package.
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