JDK14/Java14源码在线阅读

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 *
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package sun.awt;

import java.awt.*;

/**
 * An interface for the EventQueue delegate.
 * This class is added to support JavaFX/AWT interop single threaded mode
 * The delegate should be set in EventQueue by {@link EventQueue#setFwDispatcher(FwDispatcher)}
 * If the delegate is not null, than it handles supported methods instead of the
 * event queue. If it is null than the behaviour of an event queue does not change.
 *
 * @see EventQueue
 *
 * @author Petr Pchelko
 *
 * @since 1.8
 */
public interface FwDispatcher {
    /**
     * Delegates the {@link EventQueue#isDispatchThread()} method
     */
    boolean isDispatchThread();

    /**
     * Forwards a runnable to the delegate, which executes it on an appropriate thread.

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