| /* |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
| * |
| * Copyright (c) 2006-2010 Oracle and/or its affiliates. All rights reserved. |
| * |
| * The contents of this file are subject to the terms of either the GNU |
| * General Public License Version 2 only ("GPL") or the Common Development |
| * and Distribution License("CDDL") (collectively, the "License"). You |
| * may not use this file except in compliance with the License. You can |
| * obtain a copy of the License at |
| * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html |
| * or packager/legal/LICENSE.txt. See the License for the specific |
| * language governing permissions and limitations under the License. |
| * |
| * When distributing the software, include this License Header Notice in each |
| * file and include the License file at packager/legal/LICENSE.txt. |
| * |
| * GPL Classpath Exception: |
| * Oracle designates this particular file as subject to the "Classpath" |
| * exception as provided by Oracle in the GPL Version 2 section of the License |
| * file that accompanied this code. |
| * |
| * Modifications: |
| * If applicable, add the following below the License Header, with the fields |
| * enclosed by brackets [] replaced by your own identifying information: |
| * "Portions Copyright [year] [name of copyright owner]" |
| * |
| * Contributor(s): |
| * If you wish your version of this file to be governed by only the CDDL or |
| * only the GPL Version 2, indicate your decision by adding "[Contributor] |
| * elects to include this software in this distribution under the [CDDL or GPL |
| * Version 2] license." If you don't indicate a single choice of license, a |
| * recipient has the option to distribute your version of this file under |
| * either the CDDL, the GPL Version 2 or to extend the choice of license to |
| * its licensees as provided above. However, if you add GPL Version 2 code |
| * and therefore, elected the GPL Version 2 license, then the option applies |
| * only if the new code is made subject to such option by the copyright |
| * holder. |
| */ |
| |
| 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.*; |
| |
| import java.util.concurrent.TimeUnit; |
| |
| /** |
| * Specifies the amount of time in a given time unit that a concurrent |
| * access attempt should block before timing out. |
| * <p> |
| * This annotation may be applied to a stateful session bean or to a |
| * singleton session bean that uses container managed concurrency. |
| * <p> |
| * By default, clients are allowed to make concurrent calls to a |
| * stateful session object and the container is required to serialize |
| * such concurrent requests. The <code>AccessTimeout</code> |
| * annotation is used to specify the amount of time a stateful session |
| * bean request should block in the case that the bean instance |
| * is already processing a different request. Use of the |
| * <code>AccessTimeout</code> annotation with a value of 0 specifies |
| * to the container that concurrent client requests to a stateful |
| * session bean are prohibited. |
| * <p> |
| * The <code>AccessTimeout</code> annotation can be specified on a |
| * business method or a bean class. If it is specified on a class, it |
| * applies to all business methods of that class. If it is specified |
| * on both a class and on a business method of the class, the |
| * method-level annotation takes precedence for the given method. |
| * <p> |
| * Access timeouts for a singleton session bean only apply to methods |
| * eligible for concurrency locks. The <code>AccessTimeout</code> annotation can |
| * be specified on the singleton session bean class or on an eligible |
| * method of the class. If <code>AccessTimeout</code> is specified on |
| * both a class and on a method of that class, the method-level annotation |
| * takes precedence for the given method. |
| * <p> |
| * The semantics of the <code>value</code> element are as follows: |
| * <ul> |
| * <li>A value <code>></code> 0 indicates a timeout value in the units |
| * specified by the <code>unit</code> element. |
| * <li>A value of 0 means concurrent access is not permitted. |
| * <li>A value of -1 indicates that the client request will block |
| * indefinitely until forward progress it can proceed. |
| * </ul> |
| * Values less than -1 are not valid. |
| * |
| * @since EJB 3.1 |
| */ |
| @Target({METHOD, TYPE}) |
| @Retention(RUNTIME) |
| public @interface AccessTimeout { |
| |
| /** |
| * The semantics of the <code>value</code> element are as follows: |
| * <ul> |
| * <li>A value <code>></code> 0 indicates a timeout value in the units |
| * specified by the <code>unit</code> element. |
| * <li>A value of 0 means concurrent access is not permitted. |
| * <li>A value of -1 indicates that the client request will block |
| * indefinitely until forward progress it can proceed. |
| * </ul> |
| * Values less than -1 are not valid. |
| */ |
| long value(); |
| |
| /** |
| * Units used for the specified value. |
| */ |
| TimeUnit unit() default TimeUnit.MILLISECONDS; |
| |
| } |