/*
* All content copyright Terracotta, Inc., unless otherwise indicated.
*
* 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 org.terracotta.statistics.derived.latency;
import org.terracotta.statistics.ValueStatistic;
import static org.terracotta.statistics.ValueStatistics.gauge;
Author: Mathieu Carbou
/**
* @author Mathieu Carbou
*/
public interface LatencyStatistic {
Returns: The minimum in ns or null if it does not exist yet
/**
* @return The minimum in ns or null if it does not exist yet
*/
Long minimum();
Returns: The maximum in ns or null if it does not exist yet
/**
* @return The maximum in ns or null if it does not exist yet
*/
Long maximum();
Returns: The average in ns or NaN if no value
/**
* @return The average in ns or NaN if no value
*/
double average();
default ValueStatistic<Double> averageStatistic() {
return gauge(this::average);
}
default ValueStatistic<Long> minimumStatistic() {
return gauge(this::minimum);
}
default ValueStatistic<Long> maximumStatistic() {
return gauge(this::maximum);
}
}