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.regionserver; 020 021import org.apache.hadoop.hbase.Cell; 022import org.apache.yetus.audience.InterfaceAudience; 023import org.apache.hadoop.hbase.filter.FilterBase; 024import org.apache.hadoop.hbase.mob.MobUtils; 025 026/** 027 * A filter that returns the cells which have mob reference tags. It's a server-side filter. 028 */ 029@InterfaceAudience.Private 030class MobReferenceOnlyFilter extends FilterBase { 031 032 @Override 033 public ReturnCode filterCell(final Cell cell) { 034 if (null != cell) { 035 // If a cell with a mob reference tag, it's included. 036 if (MobUtils.isMobReferenceCell(cell)) { 037 return ReturnCode.INCLUDE; 038 } 039 } 040 return ReturnCode.SKIP; 041 } 042 043 @Override 044 public boolean equals(Object obj) { 045 if (!(obj instanceof MobReferenceOnlyFilter)) { 046 return false; 047 } 048 return obj == this; 049 } 050 051 @Override 052 public int hashCode() { 053 return super.hashCode(); 054 } 055}