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import java.lang.Deprecated
object Test1 {
class Foo {
[remote]
def foo: Unit = ()
}
def run: Unit = {
val method = classOf[Foo].getMethod("foo", Array())
method.getExceptionTypes foreach Console.println
}
}
object Test2 {
import java.io._
class Reader(fname: String) {
private val in = new BufferedReader(new FileReader(fname))
[throws(classOf[IOException])]
def read() = in.read()
}
def run: Unit = {
val method = classOf[Reader].getMethod("read", Array())
method.getExceptionTypes foreach Console.println
}
}
/* Java:
public class Main {
@Deprecated
public void foo() {}
public static void main(String[] args) throws Exception {
Method method = Class.forName("test.Main").getMethod("foo", new Class[]{});
Annotation annotation = method.getAnnotation(Deprecated.class);
System.out.println(annotation); // @java.lang.Deprecated()
}
}
*/
object Test3 {
class Foo {
[Deprecated]
def foo: Unit = ()
}
def run: Unit = {
val method = classOf[Foo].getMethod("foo", Array())
val annotation = method.getAnnotation(classOf[Deprecated])
Console.println(annotation)
}
}
/* Java:
@Retention(value=RetentionPolicy.RUNTIME)
@interface Source {
public String url();
public String mail();
}
@Source(url="http://scala.epfl.ch", mail="scala@lists.epfl.ch")
class Foo {}
public class Main {
public static void main(String[] args) throws Exception {
Class clazz = Class.forName("test.Foo");
Annotation[] annotations = clazz.getAnnotations();
for (int i = 0; i < annotations.length; i++)
System.out.println(annotations[i]);
// @test.Main$Source(url=http://scala.epfl.ch, mail=scala@lists.epfl.ch)
}
}
*/
object Test4 {
import java.lang.annotation._
[Retention(RetentionPolicy.RUNTIME)]
class Source(url: String, mail: String) extends Attribute
[Source("http://scala.epfl.ch", "scala@lists.epfl.ch")]
class Foo
def run: Unit = {
val clazz = classOf[Foo]
clazz.getAnnotations foreach Console.println
}
}
object Test {
def main(args: Array[String]): Unit = {
Test1.run
Test2.run
//Test3.run // requires the use of -target:jvm-1.5
//Test4.run
}
}
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