Re: [rules-dev] need advice re null handling

The flexibility provided by an Object is very valuable. We use Integer and String objects all over the place today in our facts with drools. I would hate to give it up. Tom G ------------------------------------------------------------------------ *From:* rules-dev-bounces(a)lists.jboss.org [mailto:rules-dev-bounces@lists.jboss.org] *On Behalf Of *Mark Proctor *Sent:* Thursday, March 15, 2007 6:29 AM *To:* Rules Dev List *Subject:* Re: [rules-dev] need advice re null handling if bar is an integer it will be 0, if its an Integer it will be null. The Q is do we make Integer work like the primitive, or do we make it work like an Object. Mark Michael Neale wrote: > http://jira.jboss.com/jira/browse/JBRULES-627 > > OK, this much is clear: > > Foo(field == null) can be true if field is null. > > but, what about Foo(field > 3), and field is null? should that be > false? what about Foo(field != 3) - should that be true? > > in SQL, null will always result in a false condition, unless you > explicitly use null. > > Thoughts? > > Michael. > ------------------------------------------------------------------------ > > _______________________________________________ > rules-dev mailing list > rules-dev(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-dev > ------------------------------------------------------------------------ _______________________________________________ rules-dev mailing list rules-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-dev