Java Reflection Generic Type from Class getGenericClass(Class clazz)

Description

get Generic Class

License

Open Source License

Declaration

public static Class getGenericClass(Class clazz) 

Method Source Code

//package com.java2s;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;

public class Main {
    public static Class getGenericClass(Class clazz) {
        return getGenericClass(clazz, 0);
    }//from ww w. j a  v  a2  s .c  om

    public static Class getGenericClass(Class clazz, int index) {
        Type genType = clazz.getGenericSuperclass();
        if (genType instanceof ParameterizedType) {
            Type[] params = ((ParameterizedType) genType).getActualTypeArguments();
            if ((params != null) && (params.length >= (index - 1))) {
                return (Class) params[index];
            }
        }
        return null;
    }
}

Related

1. getGenericArgumentType(Class clazz)
2. getGenericArgumentType(Class currentClass, Class genericSuperClass, int argumentIndex)
3. getGenericClass(Class clazz)
4. getGenericClass(Class clazz)
5. getGenericClass(Class clazz, int index)
6. getGenericClass(Class clazz, int index)