ee.telekom.workflow.graph.node.event

Class ThrowEscalation

java.lang.Object

ee.telekom.workflow.graph.node.AbstractNode

ee.telekom.workflow.graph.node.event.ThrowEscalation

All Implemented Interfaces:

Node

public class ThrowEscalation
extends AbstractNode

Throw event, cancelling all active token siblings. This kind of event can be used to model escalation boundaries known from BPMN where different actions need to be taken depending on whether the main activity succeeded or an escalation event cancelled the main activity.
The following figure depicts such a control flow

          +--[main]-------------[escalation]--[success-activity]--------+
 [1]--[AND]--[escalate-event1]--[escalation]--[escalation1-resolution]--[AND]--[13]
          +--[escalate-event2]--[escalation]--[escalation2-resolution]--+
 

Constructor Summary

Constructors

Constructor and Description
ThrowEscalation(int id)
ThrowEscalation(int id, String name)

Method Summary

Modifier and Type	Method and Description
void	cancel(GraphEngine engine, Token token) Called when the GraphEngine cancels the execution of a Token, that is currently pointing to this node and is in a wait state.
void	execute(GraphEngine engine, Token token) Performs node specific logic.
void	store(Environment environment, Object result) When a token execution on a node completes and returns control back to the engine, then the engine mandates the node to store the node execution result into the graph instance's environment.

Methods inherited from class ee.telekom.workflow.graph.node.AbstractNode

getId, getName, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

ThrowEscalation

public ThrowEscalation(int id)

ThrowEscalation

public ThrowEscalation(int id,
                       String name)

Method Detail

execute

public void execute(GraphEngine engine,
                    Token token)

Description copied from interface: Node

Performs node specific logic. Either from the execute method, or later from the outside, the GraphEngineFacade#complete(WorkItem) method must be called to continue executing the GraphInstance.

Parameters:

engine - the GraphEngine which is performing the execution

token - the Token which is currently executing in this node

cancel

public void cancel(GraphEngine engine,
                   Token token)

Description copied from interface: Node

Called when the GraphEngine cancels the execution of a Token, that is currently pointing to this node and is in a wait state.

Parameters:

engine - the GraphEngine which is performing the execution

token - the Token pointing to this node

store

public void store(Environment environment,
                  Object result)

Description copied from interface: Node

When a token execution on a node completes and returns control back to the engine, then the engine mandates the node to store the node execution result into the graph instance's environment.

Parameters:

environment - the environment to store the result in

result - the result to be stored