MinEventCounter.java

/*
 * Copyright (C) 2012 Facebook, Inc.
 *
 * 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.facebook.stats;

import org.joda.time.ReadableDateTime;

public class MinEventCounter extends AssociativeAggregationCounter {
  public static final AssociativeAggregation AGGREGATION =
    new AssociativeAggregation() {
      @Override
      public long combine(long l1, long l2) {
        return Math.min(l1, l2);
      }
    };

  public MinEventCounter(
    ReadableDateTime start, ReadableDateTime end, long initialValue
  ) {
    super(start, end, AGGREGATION, initialValue);
  }

  public MinEventCounter(ReadableDateTime start, ReadableDateTime end) {
    this(start, end, Long.MAX_VALUE);
  }
}