jadex.bpmn.runtime.task

Class AbstractTask

java.lang.Object

jadex.bpmn.runtime.task.AbstractTask

Direct Known Subclasses:

ExecuteStepTask, InvokeMethodTask, LoggerTask, WriteContextTask, WriteParameterTask

public abstract class AbstractTask
extends java.lang.Object

Simple task implementation with basic result and exception handling.

Constructor Summary

Constructors

Constructor and Description
AbstractTask()

Method Summary

Modifier and Type	Method and Description
IFuture<java.lang.Void>	cancel(IInternalAccess instance) Cleanup in case the task is cancelled.
abstract void	doExecute(ITaskContext context, IInternalAccess instance) Execute the task.
IFuture<java.lang.Void>	execute(ITaskContext context, IInternalAccess instance) Execute the task.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractTask

public AbstractTask()

Method Detail

execute

public IFuture<java.lang.Void> execute(ITaskContext context,
                                       IInternalAccess instance)

Execute the task.

Parameters:

context - The accessible values.

instance - The process instance executing the task.

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

cancel

public IFuture<java.lang.Void> cancel(IInternalAccess instance)

Cleanup in case the task is cancelled.

Returns:

A future to indicate when cancellation has completed.

doExecute

public abstract void doExecute(ITaskContext context,
                               IInternalAccess instance)
                        throws java.lang.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:

java.lang.Exception - When task execution fails.