javafx.concurrent.WorkerStateEvent Maven / Gradle / Ivy
/*
* Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
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 ANY =
new EventType(Event.ANY, "WORKER_STATE");
/**
* This event occurs when the state of a Worker implementation has
* transitioned to the READY state.
*/
public static final EventType WORKER_STATE_READY =
new EventType(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 WORKER_STATE_SCHEDULED =
new EventType(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 WORKER_STATE_RUNNING =
new EventType(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 WORKER_STATE_SUCCEEDED =
new EventType(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 WORKER_STATE_CANCELLED =
new EventType(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 WORKER_STATE_FAILED =
new EventType(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 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();
}
}