Detecting stateless views programmatically

Programmatically speaking, you can detect if a view is stateless by using the following options:

• In view or page, enter the following code:

<f:view transient="true">

 Is Stateless (using transient) ? #{facesContext.viewRoot.transient}

 ...

</f:view>

• In view or page, enter the following code. This works only for the postback requests:

Is Stateless (using stateless) ?

#{facesContext.postback ? facesContext.renderKit.responseStateManager.isStateless(facesContext, null) : 'Not postback yet!'}

• In backing bean, enter the following code:
  ...

 FacesContext facesContext = FacesContext.getCurrentInstance();

 UIViewRoot uiViewRoot = facesContext.getViewRoot();

 logger.log(Level.INFO, "Is stateless (using isTransient) ? {0}",

 uiViewRoot.isTransient());

 logger.log(Level.INFO, "Is stateless (using isStateless) ? {0}", facesContext.getRenderKit().getResponseStateManager().isStateless(facesContext, null));
 ...

Note The isStateless() method can be used only on the postback requests.

You also may be interested in:

JSF saving the view state

JSF logical and physical views

Server-state serialization in a session

JSF 2.2 is stateless

JSF 2.2 - The view scoped beans and thestateless feature