ZK8 Wizard Example - Part 2

Author
Robert Wenzel, Engineer, Potix Corporation

Date
July/August 2015

Version
ZK 8.0

Introduction

In the previous Part 1 LINK ME I created a wizard template together with a model. I showed its usage in a trivial case. This Part will focus on reusing the same wizard template in a different scenario with more complex steps. I'll go deeper into templating and reuse various parts of the UI.

I'll also highlight some optional features to give the example more of a real life feeling.

Order Wizard (a more complex example)

As an example I chose a classical Shopping basket and Checkout process with the following steps:

1. Basket

   adjust basket (add/remove/change items)

2. Shipping Address

   enter shipping address

3. Payment

   choose payment method + enter conditional details

4. Confirmation

   review data, accept GTC submit order (handle exceptions)

5. Feedback

   user feedback when order was successful

Order Model

The order model consists of straight forward java bean classes, to hold the data input during the order process. These classes are unaware of being used in inside a Wizard they simply provide getters and setters to hold/represent their state. (When looking into the code don't be confused by the validation annotations I'll talk about this topic in Part 3 LINK ME.)

Wizard/Step View Models

There are 3 ZK view models representing our Ordering process. The OrderViewModel controls the overall wizard, initializes the steps and eventually the submits the final order. Two of the wizard steps require additional logic which is implemented in BasketViewModel(adding/removing basket items and display recommendations) and PaymentViewModel (handle payment method changes).

Additional features

Custom I18N

using the same convenience functions in the zul and java code

Download

• The source code for this article can be found in github.

Running the Example

The example consists of a maven web application project. It can be launched with the following command:

   mvn jetty:run

Then access the overview page http://localhost:8080/wizardexample/order.zul

Comments

Copyright © Potix Corporation. This article is licensed under GNU Free Documentation License.