heron/api/src/java/com/twitter/heron/api/windowing/DefaultEvictionContext.java

//  Copyright 2017 Twitter. All rights reserved.
//
//  Licensed 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 com.twitter.heron.api.windowing;

public class DefaultEvictionContext implements EvictionContext {

  /**
   * Current timestamp
   */
  private final Long referenceTime;

  /**
   * Current event count in window
   */
  private final Long currentCount;

  /**
   * User set sliding window count
   */
  private final Long slidingCount;

  /**
   * User set sliding window interval
   */
  private final Long slidingInterval;

  public DefaultEvictionContext(Long referenceTime) {
    this(referenceTime, null);
  }

  public DefaultEvictionContext(Long referenceTime, Long currentCount) {
    this(referenceTime, currentCount, null);
  }

  public DefaultEvictionContext(Long referenceTime, Long currentCount, Long slidingCount) {
    this(referenceTime, currentCount, slidingCount, null);
  }

  public DefaultEvictionContext(Long referenceTime, Long currentCount, Long slidingCount, Long
      slidingInterval) {
    this.referenceTime = referenceTime;
    this.currentCount = currentCount;
    this.slidingCount = slidingCount;
    this.slidingInterval = slidingInterval;
  }

  @Override
  public Long getReferenceTime() {
    return referenceTime;
  }

  @Override
  public Long getCurrentCount() {
    return currentCount;
  }

  @Override
  public Long getSlidingCount() {
    return slidingCount;
  }

  @Override
  public Long getSlidingInterval() {
    return slidingInterval;
  }
}