org.drools.runtime.process
Interface EventListener

All Known Subinterfaces:

ProcessInstance, ProcessInstance, WorkflowProcessInstance, WorkflowProcessInstance

All Known Implementing Classes:

CompositeContextNodeInstance, CompositeNodeInstance, DynamicNodeInstance, ForEachNodeInstance, HumanTaskNodeInstance, MilestoneNodeInstance, ProcessInstanceImpl, RuleFlowProcessInstance, RuleSetNodeInstance, StateBasedNodeInstance, StateNodeInstance, SubProcessNodeInstance, TimerNodeInstance, WorkflowProcessInstanceImpl, WorkItemNodeInstance

public interface EventListener

An interface that represents an element that is listening for specific types of events.

Method Summary

String[]	getEventTypes() Returns the event types this event listener is interested in.
void	signalEvent(String type, Object event) Signals that an event has occurred.

Method Detail

signalEvent

void signalEvent(String type,
                 Object event)

Signals that an event has occurred. The type parameter defines which type of event and the event parameter can contain additional information related to the event.

Parameters:

type - the type of event

event - the data associated with this event

getEventTypes

String[] getEventTypes()

Returns the event types this event listener is interested in. May return null if the event types are unknown.