Re: [rules-users] Inserting Different Objects Of Same Class !

You'll have to add the information that isn't available with an anonymous fact object, i.e., a name tied to a reference. class NameFact { String name; Object fact; ... } To identify any fact that hasn't an id in its contents: (a) via a name when NameFact( name == "Chebyshev", $fact: fact ) List( this == $fact,... ) (b) via the fact when $list: List( size == 0 ) NameFact( $name: name, fact == $list ) then x.println( $name + " is empty" ); -W On 27/11/2012, abhinay_agarwal <abhinay_agarwal(a)infosys.com&gt; wrote: