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The Jadex BPMN kernel provides a workflow kernel for the standardized business process modeling notation. The kernel relies on annotated BPMN diagrams, which include detailed execution information.

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package jadex.bpmn.runtime.handler;

import java.util.List;

import jadex.bpmn.model.MActivity;
import jadex.bpmn.model.MSequenceEdge;
import jadex.bpmn.runtime.IStepHandler;
import jadex.bpmn.runtime.ProcessThread;
import jadex.bridge.IInternalAccess;
import jadex.bridge.component.IExecutionFeature;
import jadex.commons.IFilter;

/**
 *  Step handler that can be used for event-multiple elements.
 */
public class EventMultipleStepHandler implements IStepHandler
{
	/**
	 *  Make a process step, i.e. find the next edge or activity for a just executed thread.
	 *  @param activity	The activity to execute.
	 *  @param instance	The process instance.
	 *  @param thread	The process thread.
	 */
	public void step(MActivity activity, IInternalAccess instance, ProcessThread thread, Object event)
	{
		assert instance.getComponentFeature(IExecutionFeature.class).isComponentThread();
		
		// Hack!!! Should be in interpreter/thread?
		thread.updateParametersAfterStep(activity, instance);

		MSequenceEdge next	= null;
		ICancelable ca = null;	
		
		List outgoing = activity.getOutgoingSequenceEdges();
		OrFilter filter = (OrFilter)thread.getWaitFilter();
		IFilter