Package io.jmix.stormbpmnflowui.action

Class PreviewStormbpmnDiagramAction.ReloadStormbpmnDiagramTask

java.lang.Object

io.jmix.flowui.backgroundtask.BackgroundTask<Integer,StormbpmnDiagram>

io.jmix.stormbpmnflowui.action.PreviewStormbpmnDiagramAction.ReloadStormbpmnDiagramTask

Enclosing class:

PreviewStormbpmnDiagramAction

protected class PreviewStormbpmnDiagramAction.ReloadStormbpmnDiagramTask
extends BackgroundTask<Integer,StormbpmnDiagram>

Nested Class Summary

Nested classes/interfaces inherited from class io.jmix.flowui.backgroundtask.BackgroundTask

BackgroundTask.ProgressListener<T,V>, BackgroundTask.ProgressListenerAdapter<T,V>

Field Summary

Fields

Modifier and Type	Field	Description
protected StormbpmnDiagram	diagram

Constructor Summary

Constructors

Constructor	Description
ReloadStormbpmnDiagramTask(long timeout, StormbpmnDiagram diagram)

Method Summary

Modifier and Type	Method	Description
void	done(StormbpmnDiagram result)	Provides exclusive access to this UI from outside a request handling thread when the task is completed.
boolean	handleException(Exception ex)	Provides exclusive access to this UI from outside a request handling thread if the task BackgroundTask.run(TaskLifeCycle) method raised an exception.
protected void	replaceItemInContainer(StormbpmnDiagram diagram)
StormbpmnDiagram	run(TaskLifeCycle<Integer> taskLifeCycle)	Main method that performs a task.

Methods inherited from class io.jmix.flowui.backgroundtask.BackgroundTask

addProgressListener, canceled, getOwnerView, getParams, getProgressListeners, getTimeoutMilliseconds, getTimeoutSeconds, handleTimeoutException, progress, removeProgressListener

Methods inherited from class java.lang.Object

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

Field Details

diagram

protected StormbpmnDiagram diagram

Constructor Details

ReloadStormbpmnDiagramTask

public ReloadStormbpmnDiagramTask(long timeout,
 StormbpmnDiagram diagram)

Method Details

run

public StormbpmnDiagram run(TaskLifeCycle<Integer> taskLifeCycle)
                     throws Exception

Description copied from class: BackgroundTask

Main method that performs a task.
Called by the execution environment in a separate working thread.
Implementation of this method should support interruption:

• In long loops check TaskLifeCycle.isInterrupted() and return if it is true
• Don't swallow InterruptedException - return from the method or don't catch it at all

Specified by:

run in class BackgroundTask<Integer,StormbpmnDiagram>

Parameters:

taskLifeCycle - lifecycle object that allows the main method to interact with the execution environment

Returns:

task result

Throws:

Exception - exception in a working thread

handleException

public boolean handleException(Exception ex)

Description copied from class: BackgroundTask

Provides exclusive access to this UI from outside a request handling thread if the task BackgroundTask.run(TaskLifeCycle) method raised an exception.

Please note that the command might be invoked on a different thread or later on the current thread, which means that custom thread locals might not have the expected values when the command is executed. UI.getCurrent(), VaadinSession.getCurrent() and VaadinService.getCurrent() are set according to this UI before executing the command. Other standard CurrentInstance values such as VaadinService.getCurrentRequest() and VaadinService.getCurrentResponse() will not be defined.

Overrides:

handleException in class BackgroundTask<Integer,StormbpmnDiagram>

Parameters:

ex - exception

Returns:

true if this method implementation actually handles the exception. Used for chaining handlers.

See Also:

• UI.access(Command)

done

public void done(StormbpmnDiagram result)

Description copied from class: BackgroundTask

Provides exclusive access to this UI from outside a request handling thread when the task is completed.

Please note that the command might be invoked on a different thread or later on the current thread, which means that custom thread locals might not have the expected values when the command is executed. UI.getCurrent(), VaadinSession.getCurrent() and VaadinService.getCurrent() are set according to this UI before executing the command. Other standard CurrentInstance values such as VaadinService.getCurrentRequest() and VaadinService.getCurrentResponse() will not be defined.

Overrides:

done in class BackgroundTask<Integer,StormbpmnDiagram>

Parameters:

result - result of execution returned by BackgroundTask.run(TaskLifeCycle) method

See Also:

• UI.access(Command)

replaceItemInContainer

protected void replaceItemInContainer(StormbpmnDiagram diagram)