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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 31329] - [PATCH] Support for evaluating a predicate when determining if a rule is valid for a given element
Date Wed, 22 Sep 2004 23:18:04 GMT
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http://issues.apache.org/bugzilla/show_bug.cgi?id=31329

[PATCH] Support for evaluating a predicate when determining if a rule is valid for a given
element





------- Additional Comments From simon@ecnetwork.co.nz  2004-09-22 23:18 -------
I'm definitely interested in this patch. I've always thought it useful to be
able to fire rules only when certain elements have attributes with certain
values (eg "<address> elements, but only when <address> has attribute "type" set
to "email"). I'm sure that people will have other conditions they want to check for.

I think the "proper" solution is probably to have a more expressive
(xpath-like?) pattern syntax but that is a lot of work; having predicates
associated with patterns is probably much more feasable.

I will try to find time to review the code within the next week, if someone
doesn't beat me to it.

One note: we have put some effort recently into breaking the dependency between
Digester and Collections. So adding a dependency specifically on the collections
Predicate class may not be a good idea.

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