Chapter 5. Knowledge Module Internals
In this chapter, we will cover:
- Using the substitution passes
- Using Java variables in KMs
- Using Java for condition code generation
- Invoking Java from the KMs
- Using substitution methods in Java
- Combining substitution methods in a Knowledge Module
Introduction
Advanced developers can easily get started with KMs by copying existing ones and altering the existing code. The recipes in this chapter will cover concepts that are little known or little understood, but will allow for further extensions in the KMs.
To get past the basic cut, paste, and modify methods used to alter KMs, you need to know more about how ODI leverages the code of the KMs to generate scripts, commands, and SQL code. A good understanding of the mechanisms ...
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