javax.activation.PreDestroy Maven / Gradle / Ivy
The newest version!
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2005-2018 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://oss.oracle.com/licenses/CDDL+GPL-1.1
* or 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 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.activation;
import java.lang.annotation.*;
import static java.lang.annotation.ElementType.*;
import static java.lang.annotation.RetentionPolicy.*;
/**
* The PreDestroy annotation is used on a method as a
* callback notification to signal that the instance is in the
* process of being removed by the container. The method annotated
* with PreDestroy is typically used to
* release resources that it has been holding. This annotation must be
* supported by all container-managed objects that support the use of
* the PostConstruct annotation except the Java EE application
* client. The method on which the PreDestroy annotation
* is applied must fulfill all of the following criteria:
*
* - The method must not have any parameters except in the case of
* interceptors in which case it takes an
InvocationContext
* object as defined by the Interceptors specification.
* - The method defined on an interceptor class or superclass of an
* interceptor class must have one of the following signatures:
*
* void <METHOD>(InvocationContext)
*
* Object <METHOD>(InvocationContext) throws Exception
*
* Note: A PreDestroy interceptor method must not throw application
* exceptions, but it may be declared to throw checked exceptions including
* the java.lang.Exception if the same interceptor method interposes on
* business or timeout methods in addition to lifecycle events. If a
* PreDestroy interceptor method returns a value, it is ignored by
* the container.
*
* - The method defined on a non-interceptor class must have the
* following signature:
*
* void <METHOD>()
*
* - The method on which PreDestroy is applied may be public, protected,
* package private or private.
* - The method must not be static.
* - The method should not be final.
* - If the method throws an unchecked exception it is ignored by
* the container.
*
*
* @see javax.annotation.PostConstruct
* @see javax.annotation.Resource
* @since 1.6, Common Annotations 1.0
*/
@Documented
@Retention (RUNTIME)
@Target(METHOD)
public @interface PreDestroy {
}