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User Guide
The information contained in this section applies to IBM WebSphere Commerce Version 7.0.0.9 and Feautre Pack 8. The documentation also applies to all subsequent releases and modifications until otherwise indicated in new editions.
Tutorials
WebSphere Commerce provides many tutorials.
Programming model
WebSphere Commerce provides tutorials that are designed to introduce the various tasks that are related to creating customized code to develop and enhance WebSphere Commerce applications. The following tutorials provide sample guides to customizing elements of the WebSphere Commerce programming model.
Modifying a controller command
This tutorial demonstrates how to modify an existing controller command. In this tutorial, you restrict the number of items in a customer's shopping cart to five or fewer unique items. To implement this solution, you override the OrderItemAddCmdImpl class with your own implementation. The implementation includes logic to check for the number of items in the shopping cart. If a customer attempts to add a sixth item to the shopping cart, an exception is thrown. This exception uses a new error message.
Summary: Modifying a controller command

Summary: Modifying a controller command

About this task

In this tutorial you learned that:

You can use Rational Application Developer to create and modify new Java classes.
You must update the CMDREG table to use your new command implementation code when you create your own controller command implementation.
You should store error messages in properties files for easier maintenance and translation.
In WebSphere Commerce Developer, you can run SQL queries against your database using http://localhost/webapp/wcs/admin/servlet/db.jsp. You can also use the native tools for your database to run SQL queries.

For more information, see the following topics: