| /* |
| * 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.statistics; |
| |
| import org.apache.geode.Statistics; |
| |
| public interface SuppliableStatistics extends Statistics { |
| |
| /** |
| * Cast {@code Statistics} to {@code SuppliableStatistics}. |
| */ |
| static SuppliableStatistics toSuppliableStatistics(Statistics statistics) { |
| return (SuppliableStatistics) statistics; |
| } |
| |
| /** |
| * Invoke sample suppliers to retrieve the current value for the supplier controlled sets and |
| * update the stats to reflect the supplied values. |
| * |
| * @return the number of callback errors that occurred while sampling stats |
| */ |
| int updateSuppliedValues(); |
| } |
