26.5. Number Guess Example: RuleFlow Nodes

The Start node (white arrow in a green circle) and the End node (red box) mark beginning and end of the rule flow.

A Rule Flow Group box (yellow, without an icon) represents a Rule Flow Groups defined in the rules (DRL) file. For example, when the flow reaches the Rule Flow Group "Too High", only those rules marked with an attribute of ruleflow-group "Too High" can potentially fire.

Action nodes (yellow cog-shaped icon) perform standard Java method calls. Most action nodes in this example call System.out.println(), indicating the program's progress to the user.

Split and Join Nodes (blue ovals, no icon) such as "Guess Correct?" and "More guesses Join" mark places where the flow of control can split and rejoin.

Arrows indicate the flow between the various nodes.