145 lines
5.8 KiB
Java
145 lines
5.8 KiB
Java
/*
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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 static java.lang.annotation.ElementType.FIELD;
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import static java.lang.annotation.ElementType.METHOD;
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import static java.lang.annotation.ElementType.TYPE;
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import static java.lang.annotation.RetentionPolicy.RUNTIME;
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import java.lang.annotation.Repeatable;
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import java.lang.annotation.Retention;
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import java.lang.annotation.Target;
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/**
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* The <code>Resource</code> annotation marks a resource that is needed by the
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* application. This annotation may be applied to an application component
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* class, or to fields or methods of the component class. When the annotation is
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* applied to a field or method, the container will inject an instance of the
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* requested resource into the application component when the component is
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* initialized. If the annotation is applied to the component class, the
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* annotation declares a resource that the application will look up at runtime.
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* <p>
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* Even though this annotation is not marked <code>Inherited</code>, deployment
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* tools are required to examine all superclasses of any component class to
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* discover all uses of this annotation in all superclasses. All such annotation
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* instances specify resources that are needed by the application component.
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* Note that this annotation may appear on private fields and methods of
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* superclasses; the container is required to perform injection in these cases
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* as well.
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* </p>
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*
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* @since 1.6, Common Annotations 1.0
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*/
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@Target({ TYPE, FIELD, METHOD })
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@Retention(RUNTIME)
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@Repeatable(Resources.class)
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public @interface Resource {
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/**
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* The JNDI name of the resource. For field annotations, the default is the
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* field name. For method annotations, the default is the JavaBeans property
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* name corresponding to the method. For class annotations, there is no default
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* and this must be specified.
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*/
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String name() default "";
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/**
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* The name of the resource that the reference points to. It can link to any
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* compatible resource using the global JNDI names.
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*
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* @since 1.7, Common Annotations 1.1
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*/
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String lookup() default "";
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/**
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* The Java type of the resource. For field annotations, the default is the type
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* of the field. For method annotations, the default is the type of the
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* JavaBeans property. For class annotations, there is no default and this must
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* be specified.
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*/
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Class<?> type() default java.lang.Object.class;
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/**
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* The two possible authentication types for a resource.
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*/
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enum AuthenticationType {
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CONTAINER, APPLICATION
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}
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/**
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* The authentication type to use for this resource. This may be specified for
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* resources representing a connection factory of any supported type, and must
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* not be specified for resources of other types.
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*/
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AuthenticationType authenticationType() default AuthenticationType.CONTAINER;
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/**
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* Indicates whether this resource can be shared between this component and
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* other components. This may be specified for resources representing a
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* connection factory of any supported type, and must not be specified for
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* resources of other types.
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*/
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boolean shareable() default true;
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/**
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* A product-specific name that this resource should be mapped to. The
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* <code>mappedName</code> element provides for mapping the resource reference
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* to the name of a resource known to the applicaiton server. The mapped name
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* could be of any form.
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* <p>
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* Application servers are not required to support any particular form or type
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* of mapped name, nor the ability to use mapped names. The mapped name is
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* product-dependent and often installation-dependent. No use of a mapped name
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* is portable.
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* </p>
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*/
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String mappedName() default "";
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/**
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* Description of this resource. The description is expected to be in the
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* default language of the system on which the application is deployed. The
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* description can be presented to the Deployer to help in choosing the correct
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* resource.
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*/
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String description() default "";
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}
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