ruleDescr.setLhs( lhs );
final FactTemplateDescr cheese = new FactTemplateDescr( "Cheese" );
cheese.addFieldTemplate( new FieldTemplateDescr( "name",
"String" ) );
cheese.addFieldTemplate( new FieldTemplateDescr( "price",
"Integer" ) );
packageDescr.addFactTemplate( cheese );
final PatternDescr pattern = new PatternDescr( "Cheese",