It was based on Drools docs example: http://docs.jboss.org/drools/release/6.0.1.Final/drools-docs/html/ch06.html#d0e3555
It was based on Drools docs example: http://docs.jboss.org/drools/release/6.0.1.Final/drools-docs/html/ch06.html#d0e3555