/*
* Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*
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*/
package javafx.concurrent;
import javafx.beans.
NamedArg;
import javafx.event.
Event;
import javafx.event.
EventTarget;
import javafx.event.
EventType;
/**
* An event which occurs whenever the state changes on a Worker. Both
* {@link Task} and {@link Service} support listening to state events.
* @since JavaFX 2.1
*/
public class
WorkerStateEvent extends
Event {
/**
* Common supertype for all worker state event types.
*/
public static final
EventType<
WorkerStateEvent>
ANY =
new
EventType<
WorkerStateEvent>(
Event.
ANY, "WORKER_STATE");
/**
* This event occurs when the state of a Worker implementation has
* transitioned to the READY state.
*/
public static final
EventType<
WorkerStateEvent>
WORKER_STATE_READY =
new
EventType<
WorkerStateEvent>(
WorkerStateEvent.
ANY, "WORKER_STATE_READY");
/**
* This event occurs when the state of a Worker implementation has
* transitioned to the SCHEDULED state.
*/
public static final
EventType<
WorkerStateEvent>
WORKER_STATE_SCHEDULED =
new
EventType<
WorkerStateEvent>(
WorkerStateEvent.
ANY, "WORKER_STATE_SCHEDULED");
/**
* This event occurs when the state of a Worker implementation has
* transitioned to the RUNNING state.
*/
public static final
EventType<
WorkerStateEvent>
WORKER_STATE_RUNNING =
new
EventType<
WorkerStateEvent>(
WorkerStateEvent.
ANY, "WORKER_STATE_RUNNING");
/**
* This event occurs when the state of a Worker implementation has
* transitioned to the SUCCEEDED state.
*/
public static final
EventType<
WorkerStateEvent>
WORKER_STATE_SUCCEEDED =
new
EventType<
WorkerStateEvent>(
WorkerStateEvent.
ANY, "WORKER_STATE_SUCCEEDED");
/**
* This event occurs when the state of a Worker implementation has
* transitioned to the CANCELLED state.
*/
public static final
EventType<
WorkerStateEvent>
WORKER_STATE_CANCELLED =
new
EventType<
WorkerStateEvent>(
WorkerStateEvent.
ANY, "WORKER_STATE_CANCELLED");
/**
* This event occurs when the state of a Worker implementation has
* transitioned to the FAILED state.
*/
public static final
EventType<
WorkerStateEvent>
WORKER_STATE_FAILED =
new
EventType<
WorkerStateEvent>(
WorkerStateEvent.
ANY, "WORKER_STATE_FAILED");
/**
* Create a new WorkerStateEvent. Specify the worker and the event type.
*
* @param worker The Worker which is firing the event. The Worker really
* should be an EventTarget, otherwise the EventTarget
* for the event will be null.
* @param eventType The type of event. This should not be null.
*/
public
WorkerStateEvent(@
NamedArg("worker")
Worker worker, @
NamedArg("eventType")
EventType<? extends
WorkerStateEvent>
eventType) {
super(
worker,
worker instanceof
EventTarget ? (
EventTarget)
worker : null,
eventType);
}
/**
* The Worker on which the Event initially occurred.
*
* @return The Worker on which the Event initially occurred.
*/
@
Override public
Worker getSource() {
return (
Worker) super.getSource();
}
}