Package io.zeebe.engine.processing.bpmn.gateway

Class EventBasedGatewayProcessor

java.lang.Object

io.zeebe.engine.processing.bpmn.gateway.EventBasedGatewayProcessor

All Implemented Interfaces:

BpmnElementProcessor<ExecutableEventBasedGateway>

public final class EventBasedGatewayProcessor
extends Object
implements BpmnElementProcessor<ExecutableEventBasedGateway>

Constructor Summary

Constructors

Constructor	Description
EventBasedGatewayProcessor(BpmnBehaviors bpmnBehaviors)

Method Summary

Modifier and Type	Method	Description
Class<ExecutableEventBasedGateway>	getType()
void	onActivated(ExecutableEventBasedGateway element, BpmnElementContext context)	The element is initialized.
void	onActivating(ExecutableEventBasedGateway element, BpmnElementContext context)	The element is entered (initial step).
void	onCompleted(ExecutableEventBasedGateway element, BpmnElementContext context)	The element is left (final step).
void	onCompleting(ExecutableEventBasedGateway element, BpmnElementContext context)	The element is going to be left.
void	onEventOccurred(ExecutableEventBasedGateway element, BpmnElementContext context)	An event subscription of the element is triggered.
void	onTerminated(ExecutableEventBasedGateway element, BpmnElementContext context)	The element is terminated (final step).
void	onTerminating(ExecutableEventBasedGateway element, BpmnElementContext context)	The element is going to be terminated.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

EventBasedGatewayProcessor

public EventBasedGatewayProcessor(BpmnBehaviors bpmnBehaviors)

Method Detail

getType

public Class<ExecutableEventBasedGateway> getType()

Specified by:

getType in interface BpmnElementProcessor<ExecutableEventBasedGateway>

Returns:

the class that represents the BPMN element

onActivating

public void onActivating(ExecutableEventBasedGateway element,
                         BpmnElementContext context)

Description copied from interface: BpmnElementProcessor

The element is entered (initial step). Perform every action to initialize the element.

Possible actions:

• apply input mappings
• open event subscriptions

Next step: activated.

Specified by:

onActivating in interface BpmnElementProcessor<ExecutableEventBasedGateway>

Parameters:

element - the instance of the BPMN element that is executed

context - workflow instance-related data of the element that is executed

onActivated

public void onActivated(ExecutableEventBasedGateway element,
                        BpmnElementContext context)

Description copied from interface: BpmnElementProcessor

The element is initialized. If the element is a wait-state (i.e. it is waiting for an event or an external trigger) then it is waiting in this step to continue. Otherwise, it continues directly to the next step.

Possible actions:

• initialize child elements - if the element is a container (e.g. a sub-process)

Next step: completing - if not a wait-state.

Specified by:

onActivated in interface BpmnElementProcessor<ExecutableEventBasedGateway>

Parameters:

element - the instance of the BPMN element that is executed

context - workflow instance-related data of the element that is executed

onCompleting

public void onCompleting(ExecutableEventBasedGateway element,
                         BpmnElementContext context)

Description copied from interface: BpmnElementProcessor

The element is going to be left. Perform every action to leave the element.

Possible actions:

• apply output mappings
• close event subscriptions

Next step: completed.

Specified by:

onCompleting in interface BpmnElementProcessor<ExecutableEventBasedGateway>

Parameters:

element - the instance of the BPMN element that is executed

context - workflow instance-related data of the element that is executed

onCompleted

public void onCompleted(ExecutableEventBasedGateway element,
                        BpmnElementContext context)

Description copied from interface: BpmnElementProcessor

The element is left (final step). Continue with the next element.

Possible actions:

• take outgoing sequence flows - if any
• continue with parent element - if no outgoing sequence flows
• clean up the state

Next step: none.

Specified by:

onCompleted in interface BpmnElementProcessor<ExecutableEventBasedGateway>

Parameters:

element - the instance of the BPMN element that is executed

context - workflow instance-related data of the element that is executed

onTerminating

public void onTerminating(ExecutableEventBasedGateway element,
                          BpmnElementContext context)

Description copied from interface: BpmnElementProcessor

The element is going to be terminated. Perform every action to terminate the element.

Possible actions:

• close event subscriptions

Next step: terminated.

Specified by:

onTerminating in interface BpmnElementProcessor<ExecutableEventBasedGateway>

Parameters:

element - the instance of the BPMN element that is executed

context - workflow instance-related data of the element that is executed

onTerminated

public void onTerminated(ExecutableEventBasedGateway element,
                         BpmnElementContext context)

Description copied from interface: BpmnElementProcessor

The element is terminated (final step). Continue with the element that caused the termination (e.g. the triggered boundary event).

Possible actions:

• resolve incidents
• activate the triggered boundary event - if any
• activate the triggered event sub-process - if any
• continue with parent element
• clean up the state

Next step: none.

Specified by:

onTerminated in interface BpmnElementProcessor<ExecutableEventBasedGateway>

Parameters:

element - the instance of the BPMN element that is executed

context - workflow instance-related data of the element that is executed

onEventOccurred

public void onEventOccurred(ExecutableEventBasedGateway element,
                            BpmnElementContext context)

Description copied from interface: BpmnElementProcessor

An event subscription of the element is triggered. Leave the element if it waited for this event to continue. Terminate the element if the event belongs to an interrupting boundary event. Or, continue with the boundary event if it is a non-interrupting one.

Possible actions:

• activate the triggered boundary event - if any

Next step: completing or terminating.

Specified by:

onEventOccurred in interface BpmnElementProcessor<ExecutableEventBasedGateway>

Parameters:

element - the instance of the BPMN element that is executed

context - workflow instance-related data of the element that is executed