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import java.lang.reflect.*;
import java.lang.annotation.*;
class Destination {}
aspect Introduction {
// multiple parameters, not all annotated
public static String Destination.helloWorld(int i, @SomeAnnotation("xyz") String who, long l, @SomeAnnotation("abc") String what) {
return "Hello " + who;
}
}
public class Three {
public static void main(String[] argv) throws Exception {
Class<Destination> clazz = Destination.class;
Method m = clazz.getMethod("helloWorld", Integer.TYPE,String.class,Long.TYPE,String.class);
Annotation[] ann = m.getAnnotations();
for (int i = 0; i < m.getParameterAnnotations().length; i++) {
int count = m.getParameterAnnotations()[i].length;
System.out.println("Parameter " + i + " has " + count + " parameter annotations");
}
}
}
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.PARAMETER)
@interface SomeAnnotation {
String value() default "";
}
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