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1   /**
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *     http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing, software
13   * distributed under the License is distributed on an "AS IS" BASIS,
14   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   * See the License for the specific language governing permissions and
16   * limitations under the License.
17   */
18  package org.apache.hadoop.hbase.security.visibility;
19  
20  import org.apache.hadoop.classification.InterfaceAudience;
21  import org.apache.hadoop.classification.InterfaceStability;
22  
23  /**
24   * This contains a visibility expression which can be associated with a cell. When it is set with a
25   * Mutation, all the cells in that mutation will get associated with this expression. A visibility
26   * expression can contain visibility labels combined with logical operators AND(&), OR(|) and NOT(!)
27   */
28  @InterfaceAudience.Public
29  @InterfaceStability.Evolving
30  public class CellVisibility {
31  
32    private String expression;
33  
34    public CellVisibility(String expression) {
35      this.expression = expression;
36    }
37  
38    /**
39     * @return The visibility expression
40     */
41    public String getExpression() {
42      return this.expression;
43    }
44  
45    @Override
46    public String toString() {
47      return this.expression;
48    }
49  }