Class WorkerStateEvent

javafx.concurrent.WorkerStateEvent

All Implemented Interfaces:: Serializable, Cloneable

public class WorkerStateEvent extends Event

An event which occurs whenever the state changes on a Worker. Both Task and Service support listening to state events.

Since:

JavaFX 2.1

See Also:

Field Summary

Modifier and Type	Field	Description
`static final EventType<WorkerStateEvent>`	`ANY`	Common supertype for all worker state event types.
`static final EventType<WorkerStateEvent>`	`WORKER_STATE_CANCELLED`	This event occurs when the state of a Worker implementation has transitioned to the CANCELLED state.
`static final EventType<WorkerStateEvent>`	`WORKER_STATE_FAILED`	This event occurs when the state of a Worker implementation has transitioned to the FAILED state.
`static final EventType<WorkerStateEvent>`	`WORKER_STATE_READY`	This event occurs when the state of a Worker implementation has transitioned to the READY state.
`static final EventType<WorkerStateEvent>`	`WORKER_STATE_RUNNING`	This event occurs when the state of a Worker implementation has transitioned to the RUNNING state.
`static final EventType<WorkerStateEvent>`	`WORKER_STATE_SCHEDULED`	This event occurs when the state of a Worker implementation has transitioned to the SCHEDULED state.
`static final EventType<WorkerStateEvent>`	`WORKER_STATE_SUCCEEDED`	This event occurs when the state of a Worker implementation has transitioned to the SUCCEEDED state.

Fields declared in class javafx.event.Event

consumed, eventType, NULL_SOURCE_TARGET, target

Fields declared in class java.util.EventObject

source

Constructor Summary

Constructor	Description
`WorkerStateEvent(Worker worker, EventType<? extends WorkerStateEvent> eventType)`	Create a new WorkerStateEvent.

Method Summary

Modifier and Type	Method	Description
`Worker`	`getSource()`	The Worker on which the Event initially occurred.

Methods declared in class javafx.event.Event

clone, consume, copyFor, fireEvent, getEventType, getTarget, isConsumed

Methods declared in class java.util.EventObject

toString

Methods declared in class java.lang.Object

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

Field Details

ANY

public static final EventType<WorkerStateEvent> ANY

Common supertype for all worker state event types.

WORKER_STATE_READY

public static final EventType<WorkerStateEvent> WORKER_STATE_READY

This event occurs when the state of a Worker implementation has transitioned to the READY state.

WORKER_STATE_SCHEDULED

public static final EventType<WorkerStateEvent> WORKER_STATE_SCHEDULED

This event occurs when the state of a Worker implementation has transitioned to the SCHEDULED state.

WORKER_STATE_RUNNING

public static final EventType<WorkerStateEvent> WORKER_STATE_RUNNING

This event occurs when the state of a Worker implementation has transitioned to the RUNNING state.

WORKER_STATE_SUCCEEDED

public static final EventType<WorkerStateEvent> WORKER_STATE_SUCCEEDED

This event occurs when the state of a Worker implementation has transitioned to the SUCCEEDED state.

WORKER_STATE_CANCELLED

public static final EventType<WorkerStateEvent> WORKER_STATE_CANCELLED

This event occurs when the state of a Worker implementation has transitioned to the CANCELLED state.

WORKER_STATE_FAILED

public static final EventType<WorkerStateEvent> WORKER_STATE_FAILED

This event occurs when the state of a Worker implementation has transitioned to the FAILED state.

Constructor Details

WorkerStateEvent

public WorkerStateEvent(Worker worker, EventType<? extends WorkerStateEvent> eventType)

Create a new WorkerStateEvent. Specify the worker and the event type.

Parameters:: worker - The Worker which is firing the event. The Worker really should be an EventTarget, otherwise the EventTarget for the event will be null.; eventType - The type of event. This should not be null.

Method Details

getSource

public Worker getSource()

The Worker on which the Event initially occurred.

Overrides:: getSource in class EventObject
Returns:: The Worker on which the Event initially occurred.

© 2008, 2025, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from JavaFX API Documentation.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Java, JavaFX and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.