[rules-dev] need advice re null handling

[Steven Williams]

I agree with SQL. If you also want to catch null you could do

Foo(field > 3 | == null)

cheers
Steve

On 3/15/07, Michael Neale <michael.neale at gmail.com> 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.
>
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>


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