jBPM6 Developer Guide - Third Edition

Node instance structures

jBPM6 uses a node-instance-based approach to determine what steps are being executed by the process instance. This means, for every active step in the process, a node instance object exists in the process instance. When the step is completed, the node instance is removed. This allows us to have a list of active steps in the process instance that are accessible by jBPM6 from the getNodeInstances method available from the NodeInstanceContainer interface. The following code shows a simplification of the methods of most of the node instance implementations:

public interface NodeInstance { public ProcessInstance getProcessInstance() { ... } public long getId() { ... } public long getNodeId() { ... } public void trigger(NodeInstance ...