If your wizard uses one of the built-in button sets, when a user clicks the Finish, Apply, Save, or Check In button to submit the form, a javascript function is called that invokes the processRequest() method of the ActionController. The WizardServlet loads the HTTP form data and other wizard context information, such as where the wizard was launched, into a NmCommandBean. It then passes the NmCommandBean to the FormDispatcher class. The FormDispatcher calls the FormProcessorController.

The FormProcessorController partitions the form data into ObjectBeans. One ObjectBean is created for each target object of the wizard. It contains all the form data specific to that object and any form data that is common to all objects. The FormProcessorController then passes the ObjectBeans to classes called ObjectFormProcessors that perform the tasks appropriate to the wizard --- for example, creating a new object in the database, updating an object in the database, or checking in an object ObjectFormProcessors, in turn, can call classes called ObjectFormProcessorDelegates to perform one or more subtasks.

If your wizard is performing an operation on a single object you may need to create your own ObjectFormProcessor and/or ObjectFormProcessorDelegates to perform the tasks specific to your wizard. However, if your wizard is creating or editing an object, you may be able to take advantage of some processors that are delivered with the product for those purposes.

See Building Wizards to Create a Single Object and Building Wizards to Edit a Single Object for more information.

If your wizard has multiple target objects you may or may not also need to create your own FormProcessorController to control the order in which objects are processed.