001/* 002 * 003 * Licensed to the Apache Software Foundation (ASF) under one 004 * or more contributor license agreements. See the NOTICE file 005 * distributed with this work for additional information 006 * regarding copyright ownership. The ASF licenses this file 007 * to you under the Apache License, Version 2.0 (the 008 * "License"); you may not use this file except in compliance 009 * with the License. You may obtain a copy of the License at 010 * 011 * http://www.apache.org/licenses/LICENSE-2.0 012 * 013 * Unless required by applicable law or agreed to in writing, software 014 * distributed under the License is distributed on an "AS IS" BASIS, 015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 016 * See the License for the specific language governing permissions and 017 * limitations under the License. 018 */ 019package org.apache.hadoop.hbase.util; 020 021import org.apache.yetus.audience.InterfaceAudience; 022 023/** 024 * Common methods Bloom filter methods required at read and write time. 025 */ 026@InterfaceAudience.Private 027public interface BloomFilterBase { 028 029 /** 030 * @return The number of keys added to the bloom 031 */ 032 long getKeyCount(); 033 034 /** 035 * @return The max number of keys that can be inserted 036 * to maintain the desired error rate 037 */ 038 long getMaxKeys(); 039 040 /** 041 * @return Size of the bloom, in bytes 042 */ 043 long getByteSize(); 044}