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import java.lang.annotation.*;
import java.lang.reflect.*;
@Retention(RetentionPolicy.RUNTIME)
@interface Ann {
String id() default "hello";
int anInt() default 5;
long aLong() default 6;
String[] strings() default {"c","d"};
SimpleEnum enumval() default SimpleEnum.B;
}
enum SimpleEnum { A,B,C }
aspect X {
@Ann(id="goodbye",anInt=4,enumval=SimpleEnum.A,strings={"a","b"}) public void AtItd4.m() {}
//@Ann(enumval=SimpleEnum.A) public void AtItd4.m() {}
}
public class AtItd4 {
public static void main(String []argv) {
try {
Method m = AtItd4.class.getDeclaredMethod("m",null);
System.err.println("Method is "+m);
Annotation[] as = m.getDeclaredAnnotations();
System.err.println("Number of annotations "+
(as==null?"0":new Integer(as.length).toString()));
Ann aa = m.getAnnotation(Ann.class);
System.err.println("Ann.class retrieved is: "+aa);
String exp =
// "@Ann(strings=[a, b], enumval=A, aLong=6, id=goodbye, anInt=4)";
"@Ann(id=goodbye, anInt=4, aLong=6, strings=[a,b], enumval=A)";
if(!matches(aa)) {
throw new RuntimeException("Incorrect output, expected:"+exp+
" but got "+aa.toString());
}
if (as.length==0)
throw new RuntimeException("Couldn't find annotation on member!");
} catch (Exception e) {
e.printStackTrace();
throw new RuntimeException(e);
}
}
private static boolean matches(Ann anotayshun){
if(!anotayshun.id().equals("goodbye")){
return false;
}
if(anotayshun.anInt() != 4){
return false;
}
if(anotayshun.aLong() != 6){
return false;
}
if(anotayshun.strings().length != 2){
return false;
}
if(!anotayshun.strings()[0].equals("a") || !anotayshun.strings()[1].equals("b")) {
return false;
}
if(anotayshun.enumval() != SimpleEnum.A){
return false;
}
//they all match
return true;
}
}
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