/**
* 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;
/**
* Interface of class that will wrap an HRegion and export numbers so they can be
* used in MetricsRegionSource
*/
public interface MetricsRegionWrapper {
/**
* Get the name of the table the region belongs to.
*
* @return The string version of the table name.
*/
String getTableName();
/**
* Get the name of the region.
*
* @return The encoded name of the region.
*/
String getRegionName();
/**
* Get the number of stores hosted on this region server.
*/
long getNumStores();
/**
* Get the number of store files hosted on this region server.
*/
long getNumStoreFiles();
/**
* Get the size of the memstore on this region server.
*/
long getMemstoreSize();
/**
* Get the total size of the store files this region server is serving from.
*/
long getStoreFileSize();
/**
* Get the total number of read requests that have been issued against this region
*/
long getReadRequestCount();
/**
* Get the total number of mutations that have been issued against this region.
*/
long getWriteRequestCount();
}