private void relation(Options opt, RelationType rt, ClassDoc from,
	    ClassDoc to, String tailLabel, String label, String headLabel) {
	relation(opt, rt, from, from.toString(), to, to.toString(), tailLabel, label, headLabel);
    }
private void relation ( Options opt , RelationType rt , ClassDoc from , ClassDoc to , String tailLabel , String label , String headLabel ) { relation ( opt , rt , from , from . toString ( ) , to , to . toString ( ) , tailLabel , label , headLabel ) ; }
Print the specified relation
@param from the source class
@param to the destination class