| /* |
| * 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.geode.internal.admin; |
| |
| /** |
| * Interface for those who want to be alerted of a change in value of a statistic |
| */ |
| public interface StatListener { |
| /** |
| * Invoked when the value of a statistic has changed |
| * |
| * @param value The new value of the statistic |
| * @param time The time at which the statistic's value change was detected |
| */ |
| void statValueChanged(double value, long time); |
| |
| /** |
| * Invoked when the value of a statistic has not changed |
| * |
| * @param time The time of the latest statistic sample |
| */ |
| void statValueUnchanged(long time); |
| } |
