Sub Class Handler provides you to facility to add different child classes of single resource with handling all the complex works behind by just providing you with annotation to handle @SubClassHandler. Like Order class has two child classes DrugOrder and TestOrder. But there is only one single @Resource class of OrderResource. The child classes have their @subclasshandler classes for this not Resource class. OpenMRS Rest Module resolves all the complex task behind it. Developer just have to add few things to resolve this problem without worrying to much.
Manage space
Manage content
Integrations