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Is there some easy way to chain predicates – or do complex boolean logic. I would like to build a rule system based on the Predicate type but I dont like how the evaluate method takes an Object. I would rather have each Predicate be "setup" via some sort of interface PredicateContext (rather than Object) in the constructor (or factory method in this case).

Any thoughts?

Thanks.The collections project provides a complete set of predicates including And and Or in the functor subpackage. However, for full functor based programming please consider using commons-functor at http://jakarta.apache.org/commons/sandbox/functor

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