When you design and configure a Data Processor transformation Script, you can use a large number of built-in components. You can also program custom components, such as document processors or transformers, and insert them into a Script. When you export the Data Processor transformation as a Data Transformation service, the service runs the custom components.

You implement the custom components in Java. For more information about the interfaces that you must implement, see the

External-Component Java Interface Reference

.