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1   /*
2    *    Copyright 2009-2023 the original author or authors.
3    *
4    *    Licensed under the Apache License, Version 2.0 (the "License");
5    *    you may not use this file except in compliance with the License.
6    *    You may obtain a copy of the License at
7    *
8    *       https://www.apache.org/licenses/LICENSE-2.0
9    *
10   *    Unless required by applicable law or agreed to in writing, software
11   *    distributed under the License is distributed on an "AS IS" BASIS,
12   *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   *    See the License for the specific language governing permissions and
14   *    limitations under the License.
15   */
16  package org.apache.ibatis.session;
17  
18  import java.sql.Connection;
19  
20  /**
21   * @author Clinton Begin
22   */
23  public enum TransactionIsolationLevel {
24    NONE(Connection.TRANSACTION_NONE),
25  
26    READ_COMMITTED(Connection.TRANSACTION_READ_COMMITTED),
27  
28    READ_UNCOMMITTED(Connection.TRANSACTION_READ_UNCOMMITTED),
29  
30    REPEATABLE_READ(Connection.TRANSACTION_REPEATABLE_READ),
31  
32    SERIALIZABLE(Connection.TRANSACTION_SERIALIZABLE),
33  
34    /**
35     * A non-standard isolation level for Microsoft SQL Server. Defined in the SQL Server JDBC driver
36     * {@link com.microsoft.sqlserver.jdbc.ISQLServerConnection}
37     *
38     * @since 3.5.6
39     */
40    SQL_SERVER_SNAPSHOT(0x1000);
41  
42    private final int level;
43  
44    TransactionIsolationLevel(int level) {
45      this.level = level;
46    }
47  
48    public int getLevel() {
49      return level;
50    }
51  }