question: @ SuppressWarnings ( "unchecked" ) public JdbcData ( Connection connection , String table , boolean buffered ) { this . connection = connection ; this . table = table ; setBuffered ( buffered ) ; try { setColumnTypes ( getJdbcColumnTypes ( ) ) ; } catch ( SQLException e ) { e . printStackTrace ( ) ; } }
target:  Initializes a new instance to query the data from a specified table using a specified JDBC connection. It is assumed the table columns are constant during the connection.