5.5. Summary

Jess can create Java objects, call their methods, and access their data. Jess can also work with Java primitives by converting between Java and Java types. With a few exceptions (particularly working with large or multidimensional arrays), most Java code can be directly translated to Jess. Even these exceptions can easily be overcome by extending Jess with functions written in Java; you’ll learn how to do this in part 5 of this book.

In chapters 6 and 7, you’ll see how Jess’s ability to work with Java objects comes into play in rule-based programming as we study Jess’s working memory and learn how to write Jess rules. And as you’ll see later in this book, these capabilities make integrating Jess into a Java application extraordinarily easy.