Difference between revisions of "Use of node node"

Revision as of 13:45, 17 January 2012

You can define the behavior of a node of type node suing the Action element. This Action is executed when the process arrives to the node.

The Action to be executed can be defined in two ways:

• Using a BeanShell script.
• Using an action handler, this is a Java class which implements the ActionHandler interface.

Below we are going to create a sample process with a node node which make use of an implementation of the ActionHandler interface.

In this image you can see the process definition graph:

This process begins in a start node and go to a node node where the action to be performed is defined by the class MyAction which implements the ActionHandler interface.

public class MyAction implements ActionHandler {
    private static final long serialVersionUID = 1L;

    @Override
    public void execute(ExecutionContext executionContext) throws Exception {
        System.out.println("Executing programmed action...");

        // Go to next node
        executionContext.getToken().signal();
    }
}

The last line of this action tell the jBPM engine to go to the next node, which in this case is the end node.