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

Class SimpleJdbcConnectionProvider

java.lang.Object

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

All Implemented Interfaces:

Serializable, JdbcConnectionProvider

@NotThreadSafe
public class SimpleJdbcConnectionProvider
extends Object
implements JdbcConnectionProvider, Serializable

Simple JDBC connection provider.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
SimpleJdbcConnectionProvider(JdbcConnectionOptions jdbcOptions)

Method Summary

Modifier and Type	Method and Description
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.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SimpleJdbcConnectionProvider

public SimpleJdbcConnectionProvider(JdbcConnectionOptions jdbcOptions)

Method Detail

getConnection

public Connection getConnection()

Description copied from interface: JdbcConnectionProvider

Get existing connection.

Specified by:

getConnection in interface JdbcConnectionProvider

Returns:

existing connection

isConnectionValid

public boolean isConnectionValid()
                          throws SQLException

Description copied from interface: JdbcConnectionProvider

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

Specified by:

isConnectionValid in interface JdbcConnectionProvider

Returns:

true if existing connection is valid

Throws:

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

getOrEstablishConnection

public Connection getOrEstablishConnection()
                                    throws SQLException,
                                           ClassNotFoundException

Description copied from interface: JdbcConnectionProvider

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

Specified by:

getOrEstablishConnection in interface JdbcConnectionProvider

Returns:

existing connection or newly established connection

Throws:

SQLException - sql exception

ClassNotFoundException - driver class not found

closeConnection

public void closeConnection()

Description copied from interface: JdbcConnectionProvider

Close possible existing connection.

Specified by:

closeConnection in interface JdbcConnectionProvider

reestablishConnection

public Connection reestablishConnection()
                                 throws SQLException,
                                        ClassNotFoundException

Description copied from interface: JdbcConnectionProvider

Close possible existing connection and establish an new one.

Specified by:

reestablishConnection in interface JdbcConnectionProvider

Returns:

newly established connection

Throws:

SQLException - sql exception

ClassNotFoundException - driver class not found