001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018package org.apache.hadoop.hbase.security.visibility; 019 020import org.apache.yetus.audience.InterfaceAudience; 021 022@InterfaceAudience.Private 023public interface VisibilityLabelOrdinalProvider { 024 025 /** 026 * @param label Not null label string 027 * @return The ordinal for the label. The ordinal starts from 1. Returns 0 when passed a non 028 * existing label. 029 */ 030 public int getLabelOrdinal(String label); 031 032 /** 033 * Returns the string associated with the ordinal. Not be used in MR. 034 * @param ordinal representing the visibility label's ordinal 035 * @return label associated with the string, null if not found 036 */ 037 public String getLabel(int ordinal); 038}