/**
*
* 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 org.apache.hadoop.hbase.security.visibility;
import java.io.IOException;
import org.apache.hadoop.hbase.classification.InterfaceAudience;
import org.apache.hadoop.hbase.Cell;
/**
* During the read (ie. get/Scan) the VisibilityController calls this interface for each of the
* Cell. Depending on the evaluate() result, a cell can be either included or filtered out from the
* read results.
*/
@InterfaceAudience.Public
public interface VisibilityExpEvaluator {
/**
* Evaluates whether the passed cell passes Scan/Get Authorization.
* @param cell Cell under evaluation
* @return true if this cell can be included in the Result. Else false.
*/
boolean evaluate(Cell cell) throws IOException;
}