JDK8/Java8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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 * 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.
 *
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package java.awt;

interface EventFilter {

    /**
     * Enumeration for possible values for <code>acceptEvent(AWTEvent ev)</code> method.
     * @see EventDispatchThread#pumpEventsForFilter
     */
    static enum FilterAction {
        /**
         * ACCEPT means that this filter do not filter the event and allowes other
         * active filters to proceed it. If all the active filters accept the event, it
         * is dispatched by the <code>EventDispatchThread</code>
         * @see EventDispatchThread#pumpEventsForFilter
         */
        ACCEPT,
        /**
         * REJECT means that this filter filter the event. No other filters are queried,
         * and the event is not dispatched by the <code>EventDispatchedThread</code>
         * @see EventDispatchThread#pumpEventsForFilter
         */
        REJECT,
        /**
         * ACCEPT_IMMEDIATELY means that this filter do not filter the event, no other
         * filters are queried and to proceed it, and it is dispatched by the
         * <code>EventDispatchThread</code>
         * It is not recommended to use ACCEPT_IMMEDIATELY as there may be some active

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