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package javax.ejb;
import java.lang.annotation.Target;
import static java.lang.annotation.ElementType.*;
import java.lang.annotation.Retention;
import static java.lang.annotation.RetentionPolicy.*;
/**
* Used to mark a session bean method as an asynchronous method or to designate all
* business methods of a session bean class as asynchronous.
* <p>
* An asychronous method must have return type <code>void</code>
* or <code>Future<V></code>, where <code>V</code> is the result value type.
* <p>
* Asynchronous method invocation semantics only apply to the no-interface,
* local business, and remote business client views. Methods exposed
* through the EJB 2.x local, EJB 2.x remote, and web service client views
* must not be designated as asynchronous.
*
* @see AsyncResult
*
* @since EJB 3.1
*/
@Target({METHOD, TYPE})
@Retention(RUNTIME)
public @interface Asynchronous {}