1 /** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, software 14 * distributed under the License is distributed on an "AS IS" BASIS, 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 16 * See the License for the specific language governing permissions and 17 * limitations under the License. 18 */ 19 package org.apache.hadoop.hbase.regionserver; 20 21 import org.apache.hadoop.hbase.classification.InterfaceAudience; 22 import org.apache.hadoop.hbase.Cell; 23 import org.apache.hadoop.hbase.filter.FilterBase; 24 import org.apache.hadoop.hbase.mob.MobUtils; 25 26 /** 27 * A filter that returns the cells which have mob reference tags. It's a server-side filter. 28 */ 29 @InterfaceAudience.Private 30 class MobReferenceOnlyFilter extends FilterBase { 31 32 @Override 33 public ReturnCode filterKeyValue(Cell cell) { 34 if (null != cell) { 35 // If a cell with a mob reference tag, it's included. 36 if (MobUtils.isMobReferenceCell(cell)) { 37 return ReturnCode.INCLUDE; 38 } 39 } 40 return ReturnCode.SKIP; 41 } 42 }