| /* |
| * 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.ignite.internal.processors.query.stat; |
| |
| import java.util.Collection; |
| import java.util.Map; |
| import org.apache.ignite.internal.util.collection.IntMap; |
| |
| /** |
| * Statistics store interface. Wrap physical storage (in memory or local metastore) to give easy access to statistics. |
| */ |
| public interface IgniteStatisticsStore { |
| /** |
| * Clear statistics of any type for any objects; |
| */ |
| public void clearAllStatistics(); |
| |
| /** |
| * Get all local partition statistics. |
| * |
| * @param schema Schema name, if {@code null} - returl local partitions statistics for all schemas. |
| * @return Map with all local partitions statistics. |
| */ |
| public Map<StatisticsKey, Collection<ObjectPartitionStatisticsImpl>> getAllLocalPartitionsStatistics(String schema); |
| |
| /** |
| * Replace all tables partition statistics with specified ones. |
| * |
| * @param key Statistics key to replace statistics by. |
| * @param statistics Collection of partition level statistics. |
| */ |
| public void replaceLocalPartitionsStatistics(StatisticsKey key, Collection<ObjectPartitionStatisticsImpl> statistics); |
| |
| /** |
| * Get local partition statistics by specified object. |
| * |
| * @param key Key to get statistics by. |
| * @return Collection of partitions statistics. |
| */ |
| public Collection<ObjectPartitionStatisticsImpl> getLocalPartitionsStatistics(StatisticsKey key); |
| |
| /** |
| * Clear partition statistics for specified object. |
| * |
| * @param key Key to clear statistics by. |
| */ |
| public void clearLocalPartitionsStatistics(StatisticsKey key); |
| |
| /** |
| * Get partition statistics. |
| * |
| * @param key Key to get partition statistics by. |
| * @param partId Partition id. |
| * @return Object partition statistics or {@code null} if there are no statistics collected for such partition. |
| */ |
| public ObjectPartitionStatisticsImpl getLocalPartitionStatistics(StatisticsKey key, int partId); |
| |
| /** |
| * Clear partition statistics. |
| * |
| * @param key Object which statistics needs to be cleaned. |
| * @param partId Partition id. |
| */ |
| public void clearLocalPartitionStatistics(StatisticsKey key, int partId); |
| |
| /** |
| * Clear partitions statistics. |
| * |
| * @param key Object which statistics need to be cleaned. |
| * @param partIds Collection of partition ids. |
| */ |
| public void clearLocalPartitionsStatistics(StatisticsKey key, Collection<Integer> partIds); |
| |
| /** |
| * Save partition statistics. |
| * |
| * @param key Object which partition statistics belongs to. |
| * @param statistics Statistics to save. |
| */ |
| public void saveLocalPartitionStatistics(StatisticsKey key, ObjectPartitionStatisticsImpl statistics); |
| |
| /** |
| * |
| * @param obsolescence Statistics key to partId to obsolescence info map to save. |
| */ |
| public void saveObsolescenceInfo( |
| Map<StatisticsKey, IntMap<ObjectPartitionStatisticsObsolescence>> obsolescence |
| ); |
| |
| /** |
| * Save obsolescence info. |
| * |
| * @param key Statistics key which it is belongs to. |
| * @param partId Partition id. |
| * @param partObs Info to save. |
| */ |
| public void saveObsolescenceInfo(StatisticsKey key, int partId, ObjectPartitionStatisticsObsolescence partObs); |
| |
| /** |
| * Remove obsolescence info for the given key and partitions (if specified). |
| * |
| * @param key Statistics key to remove obsolescense info by. |
| * @param partIds Partition ids, if {@code null} - remove all partitions info for specified key. |
| */ |
| public void clearObsolescenceInfo(StatisticsKey key, Collection<Integer> partIds); |
| |
| /** |
| * Load all obsolescence info from store. |
| * |
| * @return StatisticsKey to partitionId to obsolescence info map. |
| */ |
| public Map<StatisticsKey, IntMap<ObjectPartitionStatisticsObsolescence>> loadAllObsolescence(); |
| |
| /** |
| * Load partitions map by key. |
| * |
| * @param key Staistics key to load map by. |
| * @return Collection of all partition ids for which there are local partitions statistics. |
| */ |
| public Collection<Integer> loadLocalPartitionMap(StatisticsKey key); |
| } |