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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.*;

/**
 * Designates a method on a stateless session bean class, a singleton
 * session bean class, a message driven bean class, or an EJB 2.x entity bean
 * class that should receive EJB timer expirations for that bean.
 * <p>
 * The method to which the <code>Timeout</code> annotation is applied
 * must have one of the following signatures, where <code>&#060;METHOD&#062;</code>
 * designates the method name:
 * <p>
 * <pre>
 * void &#060;METHOD&#062;()
 * void &#060;METHOD&#062;(Timer timer)
 * </pre>
 *
 * A timeout callback method can have public, private, protected, or package level 
 * access.  A timeout callback method must not be declared as final or static.
 * Timeout callback methods must not throw application exceptions.
 * <p>
 * If the bean implements the <code>TimedObject</code> interface, the
 * <code>Timeout</code> annotation can only be applied to the
 * <code>ejbTimeout</code> method.
 *
 * @since EJB 3.0
 */

@Target(METHOD) 
@Retention(RUNTIME)
public @interface Timeout {}