001    /**
002     * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.cache.cluster.clusterlink;
016    
017    import com.liferay.portal.kernel.cache.cluster.PortalCacheClusterEvent;
018    
019    import java.util.Set;
020    
021    /**
022     * @author Tina Tian
023     */
024    public interface PortalCacheClusterEventQueue {
025    
026            public long coalescedCount();
027    
028            public int pendingCount();
029    
030            public void put(PortalCacheClusterEvent portalCacheClusterEvent)
031                    throws InterruptedException;
032    
033            public PortalCacheClusterEvent take() throws InterruptedException;
034    
035            public Set<PortalCacheClusterEvent> takeSnapshot();
036    
037    }