Tutorials > Program model > Modify an existing controller command
Modify an existing controller command summary
In this tutorial you learned that:
- Use Rational Application Developer to create and modify new Java classes.
- You must update the CMDREG table to use the new command implementation code when you create the 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 the database using http://localhost/webapp/wcs/admin/servlet/db.jsp. You can also use the native tools for the database to run SQL queries.
More information
To learn more information about the topics covered in this tutorial, consider the following sources:
- Command registration framework
- Controller command programming model
- CMDREG database table
- Support globalization