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.security.visibility; 20 21 import java.io.IOException; 22 23 import org.apache.hadoop.hbase.classification.InterfaceAudience; 24 import org.apache.hadoop.hbase.classification.InterfaceStability; 25 import org.apache.hadoop.hbase.Cell; 26 27 /** 28 * During the read (ie. get/Scan) the VisibilityController calls this interface for each of the 29 * Cell. Depending on the evaluate() result, a cell can be either included or filtered out from the 30 * read results. 31 */ 32 @InterfaceAudience.Public 33 @InterfaceStability.Evolving 34 public interface VisibilityExpEvaluator { 35 36 /** 37 * Evaluates whether the passed cell passes Scan/Get Authorization. 38 * @param cell Cell under evaluation 39 * @return true if this cell can be included in the Result. Else false. 40 */ 41 boolean evaluate(Cell cell) throws IOException; 42 }