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import java.lang.annotation.Annotation;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
@Retention(RetentionPolicy.RUNTIME) @interface One {}
@Retention(RetentionPolicy.RUNTIME) @interface Two {}
@Retention(RetentionPolicy.RUNTIME) @interface Three {}
@Retention(RetentionPolicy.RUNTIME) @interface Four {}
@Retention(RetentionPolicy.RUNTIME) @interface Five {}
@Retention(RetentionPolicy.RUNTIME) @interface Six {}
interface Target {
public void m();
}
class A implements Target {
public void m() {
}
}
aspect X {
declare @method: * Target+.*(..): @One;
declare @method: * Target+.*(..): @Two;
}
public class DecA2 {
public static void main(String []argv) {
try {
Class c = Target.class;
Method m = c.getDeclaredMethod("m",null);
System.err.println("There are "+m.getAnnotations().length+" annotations on public void Target.m():");
dumpAnnos(m.getAnnotations());
c = A.class;
m = c.getDeclaredMethod("m",null);
System.err.println("There are "+m.getAnnotations().length+" annotations on public void A.m():");
dumpAnnos(m.getAnnotations());
} catch (Exception e) { e.printStackTrace();}
}
public static void dumpAnnos(Annotation[] anns) {
List l = new ArrayList();
if (anns!=null) {
for (int i = 0; i < anns.length; i++) {
l.add(anns[i].annotationType().getName());
}
}
Collections.sort(l);
int i = 1;
for (Iterator iter = l.iterator(); iter.hasNext();) {
System.err.println((i++)+") "+iter.next());
}
}
}
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