ResolvableType

참고사이트

:https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/core/ResolvableType.html

Encapsulates a Java Type, providing access to supertypes, interfaces, and generic parameters along with the ability to ultimately resolve to a Class.

ResolvableTypes may be obtained from fields, method parameters, method returns or classes. Most methods on this class will themselves return ResolvableTypes, allowing easy navigation. For example:

 private HashMap<Integer, List<String>> myMap;

 public void example() {
     ResolvableType t = ResolvableType.forField(getClass().getDeclaredField("myMap"));
     t.getSuperType(); // AbstractMap<Integer, List<String>>
     t.asMap(); // Map<Integer, List<String>>
     t.getGeneric(0).resolve(); // Integer
     t.getGeneric(1).resolve(); // List
     t.getGeneric(1); // List<String>
     t.resolveGeneric(1, 0); // String
 }