javax.faces.bean.ViewScoped Maven / Gradle / Ivy
Show all versions of jboss-jsf-api_2.2_spec Show documentation
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2010 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://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/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 packager/legal/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.faces.bean;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import java.lang.annotation.ElementType;
import java.lang.annotation.Inherited;
/**
* When this annotation, along with
* {@code ManagedBean} is found on a class, the runtime must act as if a
* <managed-bean-scope>view<managed-bean-scope>
* element was declared for the corresponding managed bean.
*
* If ProjectStage is not
* ProjectStage.Production, verify that the current {@code
* UIViewRoot} does not have its {@code transient}
* property set to {@code true}. If so, add a FacesMessage
* for the current {@code viewId} to the FacesContext
* stating {@code @ViewScoped} beans cannot work if the view is marked
* as transient. Also log a Level.WARNING message to the
* log. If ProjectStage is
* ProjectStage.Production, do not do this
* verification.
* The bean must be stored in the map returned from
* {@code javax.faces.component.UIViewRoot.getViewMap(boolean)}.
* The runtime must ensure that any methods on the bean annotated
* with {@code PostConstruct} or {@code PreDestroy} are called when the
* scope begins and ends, respectively. Two circumstances can cause the
* scope to end.
*
* {@code FacesContext.setViewRoot()} is called with the new
* {@code UIViewRoot} being different than the current one.
The session, that happened to be active when the bean was
* created, expires. If no session existed when the bean was created,
* then this circumstance does not apply.
* In the session expiration case, the runtime must ensure that
* {@code FacesContext.getCurrentInstance()} returns a valid instance if
* it is called during the processing of the {@code @PreDestroy}
* annotated method. The set of methods on {@code FacesContext} that
* are valid to call in this circumstance is identical to those
* documented as "valid to call this method during application startup
* or shutdown". On the {@code ExternalContext} returned from that
* {@code FacesContext}, all of the methods documented as "valid to call
* this method during application startup or shutdown" are valid to
* call. In addition, the method {@code
* ExternalContext.getSessionMap()} is also valid to call.
* The annotations in this package may be
* deprecated in a future version of this specification because they
* duplicate functionality provided by other specifications included in
* JavaEE. When possible, the corresponding annotations from the
* appropriate Java EE specification should be used in preference to
* these annotations. In this case, the corresponding annotation is
* {@code javax.faces.view.ViewScoped}. The functionality of this
* corresponding annotation is identical to this one, but it is
* implemented as a CDI custom scope.
*
*
* @since 2.0
*/
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.TYPE)
@Inherited
public @interface ViewScoped {
}