jdk8-mips64-public/jaxws: src/share/jaxws_classes/javax/annotation/PostConstruct.java@9c07ef4934dd

     1 /*

     2  * Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    26 package javax.annotation;

    28 import java.lang.annotation.*;

    29 import static java.lang.annotation.ElementType.*;

    30 import static java.lang.annotation.RetentionPolicy.*;

    32 /**

    33  * The PostConstruct annotation is used on a method that needs to be executed

    34  * after dependency injection is done to perform any initialization. This

    35  * method MUST be invoked before the class is put into service. This

    36  * annotation MUST be supported on all classes that support dependency

    37  * injection. The method annotated with PostConstruct MUST be invoked even

    38  * if the class does not request any resources to be injected. Only one

    39  * method can be annotated with this annotation. The method on which the

    40  * PostConstruct annotation is applied MUST fulfill all of the following

    41  * criteria:

    42  * <p>

    43  * <ul>

    44  * <li>The method MUST NOT have any parameters except in the case of

    45  * interceptors in which case it takes an InvocationContext object as

    46  * defined by the Interceptors specification.</li>

    47  * <li>The method defined on an interceptor class MUST HAVE one of the

    48  * following signatures:

    49  * <p>

    50  * void &#060;METHOD&#062;(InvocationContext)

    51  * <p>

    52  * Object &#060;METHOD&#062;(InvocationContext) throws Exception

    53  * <p>

    54  * <i>Note: A PostConstruct interceptor method must not throw application

    55  * exceptions, but it may be declared to throw checked exceptions including

    56  * the java.lang.Exception if the same interceptor method interposes on

    57  * business or timeout methods in addition to lifecycle events. If a

    58  * PostConstruct interceptor method returns a value, it is ignored by

    59  * the container.</i>

    60  * </li>

    61  * <li>The method defined on a non-interceptor class MUST HAVE the

    62  * following signature:

    63  * <p>

    64  * void &#060;METHOD&#062;()

    65  * </li>

    66  * <li>The method on which PostConstruct is applied MAY be public, protected,

    67  * package private or private.</li>

    68  * <li>The method MUST NOT be static except for the application client.</li>

    69  * <li>The method MAY be final.</li>

    70  * <li>If the method throws an unchecked exception the class MUST NOT be put into

    71  * service except in the case of EJBs where the EJB can handle exceptions and

    72  * even recover from them.</li></ul>

    73  * @since Common Annotations 1.0

    74  * @see javax.annotation.PreDestroy

    75  * @see javax.annotation.Resource

    76  */

    77 @Documented

    78 @Retention (RUNTIME)

    79 @Target(METHOD)

    80 public @interface PostConstruct {

    81 }

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