javax.faces.bean

## Annotation Type ViewScoped

-     @Retention(value=RUNTIME)
      @Target(value=TYPE)
      @Inherited
      public @interface ViewScoped

  When this annotation, along with `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 `UIViewRoot` does not have its `transient` property set to `true`. If so, add a `FacesMessage` for the current `viewId` to the `FacesContext` stating `@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 `javax.faces.component.UIViewRoot.getViewMap(boolean)`.

  The runtime must ensure that any methods on the bean annotated with `PostConstruct` or `PreDestroy` are called when the scope begins and ends, respectively. Two circumstances can cause the scope to end.

  - `FacesContext.setViewRoot()` is called with the new `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 `FacesContext.getCurrentInstance()` returns a valid instance if it is called during the processing of the `@PreDestroy` annotated method. The set of methods on `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 `ExternalContext` returned from that `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 `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 `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

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