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This is a backport of OpenJFX 8 to run on Java 7.

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/*
 * 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 com.sun.scenario.animation.shared;

import javafx.animation.Animation;

public abstract class AnimationAccessor {
 public static AnimationAccessor DEFAULT;

    public static AnimationAccessor getDefault() {
        if (DEFAULT != null) {
            return DEFAULT;
        }

        // invokes static initializer of Animation.class
        // that will assign value to the DEFAULT field above
        Class c = Animation.class;
        try {
            Class.forName(c.getName());
        } catch (ClassNotFoundException ex) {
            assert false : ex;
        }
        assert DEFAULT != null : "The DEFAULT field must be initialized";
        return DEFAULT;
    }

    public abstract void setCurrentRate(Animation animation, double currentRate);

    public abstract void setCurrentTicks(Animation animation, long ticks);

    public abstract void playTo(Animation animation, long pos, long cycleTicks);

    public abstract void jumpTo(Animation animation, long pos, long cycleTicks, boolean forceJump);

    public abstract void finished(Animation animation);


}