From: <jbo...@li...> - 2006-04-18 03:14:25
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Author: mic...@jb... Date: 2006-04-17 23:14:20 -0400 (Mon, 17 Apr 2006) New Revision: 3754 Modified: labs/jbossrules/trunk/documentation/manual/en/Chapter-Rule_Language/Section-Rule.xml Log: more goodness Modified: labs/jbossrules/trunk/documentation/manual/en/Chapter-Rule_Language/Section-Rule.xml =================================================================== --- labs/jbossrules/trunk/documentation/manual/en/Chapter-Rule_Language/Section-Rule.xml 2006-04-18 02:38:39 UTC (rev 3753) +++ labs/jbossrules/trunk/documentation/manual/en/Chapter-Rule_Language/Section-Rule.xml 2006-04-18 03:14:20 UTC (rev 3754) @@ -271,6 +271,10 @@ </indexterm>Literal Constraint which allows the user to constrain a field to a given value.</para> + <para>A note on nulls: you can do checks against fields that are or + maybe null, using == and != as you would expect, and the literal + "null" keyword, like: Cheese(type != null).</para> + <figure> <title>Literal Constraints</title> @@ -467,7 +471,7 @@ </mediaobject> </figure> - <para>Variables can be found to Facts and and Fields and then used in + <para>Variables can be bound to Facts and and Fields and then used in subsequent Field Constraints. A bound variable is called a <indexterm> <primary>declaration</primary> </indexterm>Declaration. Declarations cannot be used with |