| /** |
| * |
| * 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.hadoop.hbase.regionserver; |
| |
| import org.apache.hadoop.hbase.classification.InterfaceAudience; |
| import org.apache.hadoop.hbase.classification.InterfaceStability; |
| |
| /** |
| * A more restricted interface for HStore. Only gives the caller access to information |
| * about store configuration/settings that cannot easily be obtained from XML config object. |
| * Example user would be CompactionPolicy that doesn't need entire (H)Store, only this. |
| * Add things here as needed. |
| */ |
| @InterfaceAudience.Private |
| @InterfaceStability.Unstable |
| public interface StoreConfigInformation { |
| /** |
| * @return Gets the Memstore flush size for the region that this store works with. |
| */ |
| // TODO: Why is this in here? It should be in Store and it should return the Store flush size, |
| // not the Regions. St.Ack |
| long getMemstoreFlushSize(); |
| |
| /** |
| * @return Gets the cf-specific time-to-live for store files. |
| */ |
| long getStoreFileTtl(); |
| |
| /** |
| * @return Gets the cf-specific compaction check frequency multiplier. |
| * The need for compaction (outside of normal checks during flush, open, etc.) will |
| * be ascertained every multiplier * HConstants.THREAD_WAKE_FREQUENCY milliseconds. |
| */ |
| long getCompactionCheckMultiplier(); |
| |
| /** |
| * The number of files required before flushes for this store will be blocked. |
| */ |
| long getBlockingFileCount(); |
| } |