| /* |
| * Copyright (c) 2012, Niclas Hedhman. 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 org.apache.zest.api.metrics; |
| |
| /** |
| * A meter metric which measures mean throughput and one-, five-, and fifteen-minute |
| * exponentially-weighted moving average throughputs. |
| * |
| * @see <a href="http://en.wikipedia.org/wiki/Moving_average#Exponential_moving_average">EMA</a> |
| */ |
| public interface MetricsMeter extends Metric |
| { |
| void mark(); |
| |
| /** |
| * Mark the occurrence of a given number of events. |
| * |
| * @param numberOfEvents the number of events |
| */ |
| void mark( int numberOfEvents ); |
| } |