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98 lines
4.3 KiB
98 lines
4.3 KiB
5 years ago
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/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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*
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* Copyright (c) 2005-2018 Oracle and/or its affiliates. All rights reserved.
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*
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* The contents of this file are subject to the terms of either the GNU
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* General Public License Version 2 only ("GPL") or the Common Development
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* and Distribution License("CDDL") (collectively, the "License"). You
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* may not use this file except in compliance with the License. You can
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* obtain a copy of the License at
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* https://oss.oracle.com/licenses/CDDL+GPL-1.1
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* or LICENSE.txt. See the License for the specific
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* language governing permissions and limitations under the License.
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*
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* When distributing the software, include this License Header Notice in each
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* file and include the License file at LICENSE.txt.
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*
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* GPL Classpath Exception:
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* Oracle designates this particular file as subject to the "Classpath"
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* exception as provided by Oracle in the GPL Version 2 section of the License
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* file that accompanied this code.
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*
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* Modifications:
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* If applicable, add the following below the License Header, with the fields
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* enclosed by brackets [] replaced by your own identifying information:
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* "Portions Copyright [year] [name of copyright owner]"
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*
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* Contributor(s):
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* If you wish your version of this file to be governed by only the CDDL or
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* only the GPL Version 2, indicate your decision by adding "[Contributor]
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* elects to include this software in this distribution under the [CDDL or GPL
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* Version 2] license." If you don't indicate a single choice of license, a
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* recipient has the option to distribute your version of this file under
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* either the CDDL, the GPL Version 2 or to extend the choice of license to
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* its licensees as provided above. However, if you add GPL Version 2 code
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* and therefore, elected the GPL Version 2 license, then the option applies
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* only if the new code is made subject to such option by the copyright
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* holder.
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*/
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package javax.annotation;
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import java.lang.annotation.*;
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import static java.lang.annotation.ElementType.*;
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import static java.lang.annotation.RetentionPolicy.*;
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/**
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* The <code>PostConstruct</code> annotation is used on a method that
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* needs to be executed after dependency injection is done to perform
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* any initialization. This method must be invoked before the class
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* is put into service. This annotation must be supported on all classes
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* that support dependency injection. The method annotated with
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* <code>PostConstruct</code> must be invoked even if the class does
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* not request any resources to be injected. Only one
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* method in a given class can be annotated with this annotation.
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* The method on which the <code>PostConstruct</code> annotation is
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* applied must fulfill all of the following criteria:
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* <ul>
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* <li>The method must not have any parameters except in the case of
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* interceptors in which case it takes an <code>InvocationContext</code>
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* object as defined by the Interceptors specification.</li>
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* <li>The method defined on an interceptor class or superclass of an
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* interceptor class must have one of the following signatures:
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* <p>
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* void <METHOD>(InvocationContext)
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* <p>
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* Object <METHOD>(InvocationContext) throws Exception
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* <p>
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* <i>Note: A PostConstruct interceptor method must not throw application
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* exceptions, but it may be declared to throw checked exceptions including
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* the java.lang.Exception if the same interceptor method interposes on
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* business or timeout methods in addition to lifecycle events. If a
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* PostConstruct interceptor method returns a value, it is ignored by
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* the container.</i>
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* </li>
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* <li>The method defined on a non-interceptor class must have the
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* following signature:
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* <p>
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* void <METHOD>()
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* </li>
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* <li>The method on which the <code>PostConstruct</code> annotation
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* is applied may be public, protected, package private or private.</li>
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* <li>The method must not be static except for the application client.</li>
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* <li>The method should not be final.</li>
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* <li>If the method throws an unchecked exception the class must not be put into
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* service except in the case where the exception is handled by an
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* interceptor.</li></ul>
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*
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* @see javax.annotation.PreDestroy
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* @see javax.annotation.Resource
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* @since 1.6, Common Annotations 1.0
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*/
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@Documented
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@Retention (RUNTIME)
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@Target(METHOD)
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public @interface PostConstruct {
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}
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