注释和方法

Question

Is there a way to call a method method in annotation

For example

@Annotation(param = Class.method();)

or is there anoter way?

Answer 1

It is possible by providing the name of the function into the annotation

Heres a class I wrote which contains the generic function 'callMethod()' which takes in a String and instance of a class and returns the result of calling that method.

public static <T> Object callMethod(String methodName, T classInstance) throws NoSuchMethodException, InvocationTargetException, IllegalAccessException {
    Method method = classInstance.getClass().getDeclaredMethod(methodName);
    return method.invoke(classInstance);
}