/* * Copyright (c) 1998-2011 Caucho Technology -- all rights reserved * * This file is part of Resin(R) Open Source * * Each copy or derived work must preserve the copyright notice and this * notice unmodified. * * Resin Open Source is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * Resin Open Source is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty * of NON-INFRINGEMENT. See the GNU General Public License for more * details. * * You should have received a copy of the GNU General Public License * along with Resin Open Source; if not, write to the * * Free Software Foundation, Inc. * 59 Temple Place, Suite 330 * Boston, MA 02111-1307 USA * * @author Scott Ferguson */ package javax.enterprise.event; import static java.lang.annotation.ElementType.*; import static java.lang.annotation.RetentionPolicy.*; import java.lang.annotation.*; /** * The @Observes parameter annotation marks a method as capable of * receiving events. The method must be thread safe, because the * BeanManager may fire multiple events at once. * * The parameter type determines the events the method will observe. * * <code><pre> * public void myObserver(@Observes MyEvent event); * </pre></code> */ @Documented @Retention(RUNTIME) @Target({PARAMETER}) public @interface Observes { TransactionPhase during() default TransactionPhase.IN_PROGRESS; Reception notifyObserver() default Reception.ALWAYS; }