Start line:  
End line:  

Snippet Preview

Snippet HTML Code

Stack Overflow Questions
   * 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
  * 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;

The presence of this annotation on a class automatically registers the class with the runtime as a managed bean class. Classes must be scanned for the presence of this annotation at application startup, before any requests have been serviced.

The value of the name() attribute is taken to be the managed-bean-name. If the value of the name attribute is unspecified or is the empty String, the managed-bean-name is derived from taking the unqualified class name portion of the fully qualified class name and converting the first character to lower case. For example, if the ManagedBean annotation is on a class with the fully qualified class name, and there is no name attribute on the annotation, the managed-bean-name is taken to be bean. The fully qualified class name of the class to which this annotation is attached is taken to be the managed-bean-class.

The scope of the managed bean is declared using one of NoneScoped, RequestScoped, ViewScoped, SessionScoped, ApplicationScoped, or CustomScoped annotations. If the scope annotations are omitted, the bean must be handled as if the RequestScoped annotation is present.

If the value of the eager() attribute is true, and the managed-bean-scope value is "application", the runtime must instantiate this class when the application starts. This instantiation and storing of the instance must happen before any requests are serviced. If eager is unspecified or false, or the managed-bean-scope is something other than "application", the default "lazy" instantiation and scoped storage of the managed bean happens.

When the runtime processes this annotation, if a managed bean exists whose name is equal to the derived managed-bean-name, a FacesException must be thrown and the application must not be placed in service.

A class tagged with this annotation must have a public zero-argument constructor. If such a constructor is not defined on the class, a FacesException must be thrown and the application must not be placed in service.

public @interface ManagedBean {


Taken to be the managed-bean-name. See class documentation for details.

    String name() default "";


Taken to be the value of the eager attribute of the managed-bean. See class documentation for details.

    boolean eager() default false;
New to GrepCode? Check out our FAQ X