Package org.copperengine.core.persistent

Class PersistentWorkflow<E extends java.io.Serializable>

java.lang.Object

org.copperengine.core.Workflow<E>

org.copperengine.core.persistent.PersistentWorkflow<E>

Type Parameters:

E - type of data object holt by the workflow (Passed in when calling ProcessingEngine.run(java.lang.String, java.lang.Object)

All Implemented Interfaces:

java.io.Serializable, SavepointAware

public abstract class PersistentWorkflow<E extends java.io.Serializable>
extends Workflow<E>
implements java.io.Serializable, SavepointAware

Abstract base class for persistent workflows. It is safe to run a PersistentWorkflow in a transient engine. So if your want to keep it open to decide later whether your workflow needs persistence or not, it is OK to inherit from PersistentWorkflow.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.copperengine.core.Workflow

__stack, __stackPosition, NO_TIMEOUT

Constructor Summary

Constructors

Constructor	Description
PersistentWorkflow()

Method Summary

Modifier and Type	Method	Description
protected Acknowledge	createCheckpointAcknowledge()	We create a quasi empty acknowledge here.
boolean	flushCheckpointAcknowledges()
ErrorData	getErrorData()
void	onDelete(PersistenceContext pc)
void	onLoad(PersistenceContext pc)
void	onSave(PersistenceContext pc)
protected void	registerCheckpointAcknowledge(Acknowledge ack)
protected void	registerSavepointAware(SavepointAware sa)
void	setDataAsObject(java.lang.Object data)	Used internally

Methods inherited from class org.copperengine.core.Workflow

__beforeProcess, createCallback, get__stack, getAndRemoveResponse, getAndRemoveResponses, getAnyNonTimedOutAndRemoveResponse, getCreationTS, getData, getEngine, getId, getLastActivityTS, getLastWaitStackTrace, getPriority, getProcessingState, getProcessorPoolId, getTimeoutTS, main, notify, prettyPrintData, putResponse, resubmit, savepoint, setData, setEngine, setId, setPriority, setProcessorPoolId, toString, wait, wait, wait, wait, waitForAll, waitForAll

Methods inherited from class java.lang.Object

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

Constructor Detail

PersistentWorkflow

public PersistentWorkflow()

Method Detail

setDataAsObject

public void setDataAsObject(java.lang.Object data)

Used internally

Parameters:

data - Just hard cast data to (E). On internal call, we know that data is of correct type, even when handling as object.

onLoad

public void onLoad(PersistenceContext pc)

onSave

public void onSave(PersistenceContext pc)

Specified by:

onSave in interface SavepointAware

onDelete

public void onDelete(PersistenceContext pc)

createCheckpointAcknowledge

protected Acknowledge createCheckpointAcknowledge()

Description copied from class: Workflow

We create a quasi empty acknowledge here. It doesn't block at all and has empty callbacks for success and errors.

Overrides:

createCheckpointAcknowledge in class Workflow<E extends java.io.Serializable>

Returns:

a BestEffortAcknowledge

registerCheckpointAcknowledge

protected void registerCheckpointAcknowledge(Acknowledge ack)

Overrides:

registerCheckpointAcknowledge in class Workflow<E extends java.io.Serializable>

registerSavepointAware

protected void registerSavepointAware(SavepointAware sa)

Overrides:

registerSavepointAware in class Workflow<E extends java.io.Serializable>

flushCheckpointAcknowledges

public boolean flushCheckpointAcknowledges()

getErrorData

public ErrorData getErrorData()