001/**
002 * Copyright 2015 DuraSpace, Inc.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package org.fcrepo.kernel.observer;
017
018import javax.jcr.Session;
019import javax.jcr.observation.Event;
020
021import com.google.common.base.Predicate;
022
023/**
024 * Filter JCR events to remove extraneous events
025 * @author eddies
026 * @author ajs6f
027 * @since Feb 7, 2013
028 */
029public interface EventFilter extends Predicate<Event> {
030
031    /**
032     * Return a {@link Predicate} with which to filter JCR {@link Event}s.
033     *
034     * @param session the session
035     * @return Predicate
036     */
037    Predicate<Event> getFilter(final Session session);
038}