jakarta.ejb.EJB Maven / Gradle / Ivy
/*
* Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package jakarta.ejb;
import java.lang.annotation.Target;
import static java.lang.annotation.ElementType.*;
import java.lang.annotation.Retention;
import static java.lang.annotation.RetentionPolicy.*;
/**
* Indicates a dependency on the local, no-interface, or remote view of an Enterprise Bean.
*
* Either the beanName or the lookup element can
* be used to resolve the enterprise bean dependency to its target session bean component.
* It is an error to specify values for both beanName and
* lookup.
*
* If no explicit linking information is provided and there is only one session
* bean within the same application that exposes the matching client view type,
* by default the enterprise bean dependency resolves to that session bean.
*
* @since EJB 3.0
*/
@Target({TYPE, METHOD, FIELD})
@Retention(RUNTIME)
public @interface EJB {
/**
* The logical name of the enterprise bean reference within the declaring component's
* (e.g., java:comp/env) environment.
*/
String name() default "";
/**
* A string describing the bean.
*/
String description() default "";
/**
* The beanName element references the value of the name
* element of the Stateful or Stateless annotation,
* whether defaulted or explicit. If the deployment descriptor was used to define
* the name of the bean, the beanName element references the
* ejb-name element of the bean definition.
*
* The beanName element allows disambiguation if multiple session
* beans in the ejb-jar implement the same interface.
*
* In order to reference a bean in another ejb-jar file in the same application,
* the beanName may be composed of a path name specifying the ejb-jar
* containing the referenced bean with the bean name of the target bean appended and
* separated from the path name by #. The path name is relative to the jar file
* containing the component that is referencing the target bean.
*
* Only applicable if the target enterprise bean is defined within the
* same application or stand-alone module as the declaring component.
*/
String beanName() default "";
/**
* The interface type of the Enterprise Bean to which this reference
* is mapped.
*
* Holds one of the following types of the target enterprise bean :
*
* - Local business interface
*
- Bean class (for no-interface view)
*
- Remote business interface
*
- Local Home interface
*
- Remote Home interface
*
*/
Class beanInterface() default Object.class;
/**
* The product specific name of the enterprise bean component to which this
* enterprise bean reference should be mapped. This mapped name is often a
* global JNDI name, but may be a name of any form.
*
* Application servers are not required to support any particular
* form or type of mapped name, nor the ability to use mapped names.
* The mapped name is product-dependent and often installation-dependent.
* No use of a mapped name is portable.
*/
String mappedName() default "";
/**
* A portable lookup string containing the JNDI name for the target enterprise bean component.
*
* @since EJB 3.1
*/
String lookup() default "";
}