The Rules style of composition uses the $ operator representing the connector to implement the following compositions

• SourceName -> SinkName $ Rule (parameterList[opt])
• SourceName -> HandlerName $ Rule(parameterList[opt]) -> SinkName $ Rule(parameterList[opt])
• SourceName -> HandlerName $ Rule(parameterList[opt]) -> SinkName
• result = SourceName -> HandlerName $ Rule(parameterList[opt])

All combinations of components in the pipes and filter style can be qualified with a rule evaluation.

Component RuleTester {

	Rule rule = boolean test( ); //will work
	Rule rule = void test( ); //won't work - rule will always return boolean
	Rule rule = int test(int num); 
             //won't work - rule will always return boolean
	Rule rule = boolean test(int num); //will work
	Rule rule = public boolean test(int num); 
             //won't work - no modifiers are allowed

	Source src = int producer( );
	Handler hnd = int processor(int number);
	Sink snk = void pit(int finalnumber);
	Event evt = boolean trigger( );

}

Next : Rule test cases