ee.telekom.workflow.graph.node.event

Class CatchSignal

java.lang.Object

ee.telekom.workflow.graph.node.AbstractNode

ee.telekom.workflow.graph.node.event.CatchSignal

All Implemented Interfaces:

Node

public class CatchSignal
extends AbstractNode

Catch event, pausing execution until the arrival of a signal from an external source.

Constructor Summary

Constructors

Constructor and Description
CatchSignal(int id, String signal)
CatchSignal(int id, String name, InputMapping<String> signal, OutputMapping resultMapping)
CatchSignal(int id, String signal, OutputMapping resultMapping)
CatchSignal(int id, String name, String signal)
CatchSignal(int id, String name, String signal, OutputMapping resultMapping)

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.
OutputMapping	getResultMapping()
InputMapping<String>	getSignalMapping()
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

CatchSignal

public CatchSignal(int id,
                   String signal)

CatchSignal

public CatchSignal(int id,
                   String name,
                   String signal)

CatchSignal

public CatchSignal(int id,
                   String name,
                   String signal,
                   OutputMapping resultMapping)

CatchSignal

public CatchSignal(int id,
                   String signal,
                   OutputMapping resultMapping)

CatchSignal

public CatchSignal(int id,
                   String name,
                   InputMapping<String> signal,
                   OutputMapping resultMapping)

Method Detail

getSignalMapping

public InputMapping<String> getSignalMapping()

getResultMapping

public OutputMapping getResultMapping()

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