content: /**
   * Copyright The Apache Software Foundation
   *
   * 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 com.alibaba.wasp.fserver.metrics;
  
  /**
   * Interface of class that will wrap an EntityGroup and export numbers so they
   * can be used in MetricsEntityGroupSource
   */
  public interface MetricsEntityGroupWrapper {
  
    /**
     * Get the name of the table the EntityGroup belongs to.
     * 
     * @return The string version of the table name.
     */
    String getTableName();
  
    /**
     * Get the name of the EntityGroup.
     * 
     * @return The encoded name of the EntityGroup.
     */
    String getEntityGroupName();
  
    /**
     * Get the total number of read requests that have been issued against this
     * EntityGroup
     */
    long getReadRequestCount();
  
    /**
     * Get the total number of mutations that have been issued against this
     * EntityGroup.
     */
    long getWriteRequestCount();
  
    /**
     * Get the uncommitted redo log size of this EntityGroup.
     */
    long getTransactionLogSize();
  }
  