Advanced Features of ADF - Oracle ADF 11gR2 Development Beginner's Guide - page 263

Each of the page fragments is added as a train stop and is linearly linked to provide a
wizard-like feature in the web page. Checking the train opion for the task low will
enable the task flow to support train stops. One common expression used with the
train is as follows:
#{controllerContext.currentViewPort
.taskFlowContext.trainModel.getNext}"
#{controllerContext.currentViewPort
.taskFlowContext.trainModel.getPrevious}"
Template : The task flow template is another useful feature that will enable the task
flow to behave like a template, to add and support other task flows. A base task flow
template is created for a repeated process and then it is reused by the consuming
task flow to build a complex task flow.
Menu model navigaion : ADF supports a feature that will let the task flow be
displayed in a menu. The task low navigaion is represented in a TreeModel
feature or in an XMLMenuModel feature in a root_menu.xml file. Later, the XML
file is processed to display a menu structure, using the menu component in the
page, by idenifying the corresponding node that represents the task low for
navigaion. The menu model is added to the adfc-config.xml file as a menu,
and each of its task flows will be displayed in a separate tab in the UI page.
The following code is an example of the root_menu.xml file:
<menu xmlns="http://myfaces.apache.org/trinidad/menu">
<itemNode id="itemNode_home"
label="label_home"
action="adfMenu_home"
focusViewId="/home"/>