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16  package org.apache.ibatis.type;
17  
18  import java.sql.CallableStatement;
19  import java.sql.PreparedStatement;
20  import java.sql.ResultSet;
21  import java.sql.SQLException;
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26  public class LongTypeHandler extends BaseTypeHandler<Long> {
27  
28    @Override
29    public void setNonNullParameter(PreparedStatement ps, int i, Long parameter, JdbcType jdbcType)
30        throws SQLException {
31      ps.setLong(i, parameter);
32    }
33  
34    @Override
35    public Long getNullableResult(ResultSet rs, String columnName)
36        throws SQLException {
37      long result = rs.getLong(columnName);
38      return result == 0 && rs.wasNull() ? null : result;
39    }
40  
41    @Override
42    public Long getNullableResult(ResultSet rs, int columnIndex)
43        throws SQLException {
44      long result = rs.getLong(columnIndex);
45      return result == 0 && rs.wasNull() ? null : result;
46    }
47  
48    @Override
49    public Long getNullableResult(CallableStatement cs, int columnIndex)
50        throws SQLException {
51      long result = cs.getLong(columnIndex);
52      return result == 0 && cs.wasNull() ? null : result;
53    }
54  }