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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.eagle.security.userprofile;

/**
 * Aggregation time window
 *
 * @since 9/29/15
 */
public interface TimeWindow{
    /**
     * @return start time stamp
     */
    long from();

    /**
     * @return stop timestamp
     */
    long to();

    /**
     * @param timestamp income event timestamp
     * @return whether accept the event
     */
    boolean accept(Long timestamp);

    /**
     * @return whether current time-window is expired
     */
    boolean expire();
}