org.apache.flink.connector.jdbc.internal.connection

接口 JdbcConnectionProvider

所有已知子接口:

XaFacade

所有已知实现类:

SimpleJdbcConnectionProvider

@Internal
public interface JdbcConnectionProvider

JDBC connection provider.

方法概要

限定符和类型	方法和说明
void	closeConnection() Close possible existing connection.
Connection	getConnection() Get existing connection.
Connection	getOrEstablishConnection() Get existing connection or establish an new one if there is none.
boolean	isConnectionValid() Check whether possible existing connection is valid or not through Connection.isValid(int).
Connection	reestablishConnection() Close possible existing connection and establish an new one.

方法详细资料

getConnection

@Nullable
Connection getConnection()

Get existing connection.

返回:

existing connection

isConnectionValid

boolean isConnectionValid()
                   throws SQLException

Check whether possible existing connection is valid or not through Connection.isValid(int).

返回:

true if existing connection is valid

抛出:

SQLException - sql exception throw from Connection.isValid(int)

getOrEstablishConnection

Connection getOrEstablishConnection()
                             throws SQLException,
                                    ClassNotFoundException

Get existing connection or establish an new one if there is none.

返回:

existing connection or newly established connection

抛出:

SQLException - sql exception

ClassNotFoundException - driver class not found

closeConnection

void closeConnection()

Close possible existing connection.

reestablishConnection

Connection reestablishConnection()
                          throws SQLException,
                                 ClassNotFoundException

Close possible existing connection and establish an new one.

返回:

newly established connection

抛出:

SQLException - sql exception

ClassNotFoundException - driver class not found