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From commons-...@jakarta.apache.org
Subject [Jakarta Commons Wiki] Updated: Collections Questions
Date Mon, 23 Aug 2004 20:03:36 GMT
   Date: 2004-08-23T13:03:36
   Editor: 217.43.244.60 <>
   Wiki: Jakarta Commons Wiki
   Page: Collections Questions
   URL: http://wiki.apache.org/jakarta-commons/Collections Questions

   no comment

Change Log:

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@@ -2,9 +2,9 @@
 
 = Predicate Logic =
 
-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).
 
+Q: 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).
 
 
-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
+A: 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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