jadex.bpmn.runtime.task

Class AbstractTask

java.lang.Object

jadex.bpmn.runtime.task.AbstractTask

All Implemented Interfaces:

ITask

Direct Known Subclasses:

DispatchInternalEventTask, ExecuteStepTask, InvokeMethodTask, LoggerTask, PrintTask, WriteBeliefTask, WriteContextTask, WriteParameterTask, WriteParameterTask

public abstract class AbstractTask
extends Object
implements ITask

Simple task implementation with basic result and exception handling.

Constructor Summary

Constructors

Constructor and Description
AbstractTask()

Method Summary

Methods

Modifier and Type	Method and Description
IFuture<Void>	compensate(BpmnInterpreter instance) Compensate in case the task is canceled.
abstract void	doExecute(ITaskContext context, BpmnInterpreter instance) Execute the task.
IFuture<Void>	execute(ITaskContext context, BpmnInterpreter instance) Execute the task.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractTask

public AbstractTask()

Method Detail

execute

public IFuture<Void> execute(ITaskContext context,
                    BpmnInterpreter instance)

Execute the task.

Specified by:

execute in interface ITask

Parameters:

context - The accessible values.

instance - The process instance executing the task.

listener - To be notified, when the task has completed.

Returns:

To be notified, when the task has completed.

compensate

public IFuture<Void> compensate(BpmnInterpreter instance)

Compensate in case the task is canceled.

Specified by:

compensate in interface ITask

Returns:

To be notified, when the compensation has completed.

doExecute

public abstract void doExecute(ITaskContext context,
             BpmnInterpreter instance)
                        throws Exception

Execute the task. Implement this method for synchroneous tasks, which are finished, when the method returns.

Parameters:

context - The accessible values.

instance - The process instance executing the task.

Throws:

Exception - When task execution fails.