There is this function
Transformers.aliasToBean(RoomInfoDTO.class);
Now I would to use the above function in my generic method. How do I pass the class into the method and use it ?
I tried the following but it doesn't work
passThis(PurchaseHistoryDTO.class);
....
function passThis(Class<?> passedClass){
Transformers.aliasToBean(passedClass.getClass());
}
Somehow the function takes the class as class java.lang.Class.
Just pass the argument directly without calling getClass on it. passedClass is a Class object, so calling getClass on it will obviously return java.lang.Class. Just do:
function passThis(Class<?> passedClass){
Transformers.aliasToBean(passedClass); //just pass the class, not the class's class
}
Also, I'm assuming that "function" is shorthand/psuedocode; that won't compile in java. substitute it with a return type, probably void.
As you already passed class object PurchaseHistoryDTO.class in
Class<?> passedClass argument,
just pass "passedClass in the method like :
Transformers.aliasToBean(passedClass);
It should work.
You're passing in the class, so you can operate on it directly.
void passThis(Class<?> passedClass) {
Transformers.aliasToBean(passedClass);
}
You also don't say function in Java. You might be thinking of JavaScript.
On another note, there is basically no point to using a generic class as you have it in your example. Passing in simply (Class passedClass) would work just as well.
So the question is why you went the generics route. It could be you want something more like this:
<T> T passThis(Class<T> passedClass){
return Transformers.aliasToBean(passedClass);
}
Just depends on what you are trying to accomplish.
getClass(), just pass theClass.passedClassis instance ofClasssogetClass()should returnclass java.lang.Class. Nothing abnormal here. Why do you callgetClass()on the first place?getClass()here? I already have Class that represents my type."getClass()because I assume it would be equivalent with.class. Anyway thank you guys for the explanation