[rules-users] using from with not

[Chris West]

Hello,

Does anyone know why rule "GoodBye2" below does not compile, but rule
"GoodBye1" does compile using Drools 4.0.0?  The only difference is the
"not".  Shouldn't this be valid?

Thanks,
-Chris


package com.sample

import com.sample.DroolsTest.Message;
import com.sample.DroolsTest.Foo;
import java.util.List;

rule "Hello World"
    when
        m : Message( status == Message.HELLO, message : message )
    then
        System.out.println( message );
        m.setMessage( "Goodbye cruel world" );
        m.setStatus( Message.GOODBYE );
        update( m );
end

rule "GoodBye1"
    no-loop true
    when
        m : Message( status == Message.GOODBYE, message : message, $foos:
foos )
        Foo(id == 10) from $foos
    then
        System.out.println( message );
        m.setMessage( message );

end

rule "GoodBye2"
    no-loop true
    when
        m : Message( status == Message.GOODBYE, message : message, $foos:
foos )
        not Foo(id == 10) from $foos
    then
        System.out.println( message );
        m.setMessage( message );

end
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