org.apache.drill.jdbc

Class SingleConnectionCachingFactory

java.lang.Object

org.apache.drill.jdbc.SingleConnectionCachingFactory

All Implemented Interfaces:

CachingConnectionFactory, ConnectionFactory

public class SingleConnectionCachingFactory
extends Object
implements CachingConnectionFactory

A connection factory that creates and caches a single connection instance.

Not thread safe.

Constructor Summary

Constructors

Constructor and Description
SingleConnectionCachingFactory(ConnectionFactory delegate)

Method Summary

Modifier and Type	Method and Description
void	closeConnections() Closes all open connections in this factory's cache.
Connection	getConnection(ConnectionInfo info) Gets an open Connection based on given connection parameters.

Methods inherited from class java.lang.Object

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

Constructor Detail

SingleConnectionCachingFactory

public SingleConnectionCachingFactory(ConnectionFactory delegate)

Method Detail

getConnection

public Connection getConnection(ConnectionInfo info)
                         throws SQLException

Gets an open Connection based on given connection parameters.

For this implementation, calls to createConnection without any intervening calls to closeConnections() return the same Connection instance.

Specified by:

getConnection in interface ConnectionFactory

Parameters:

info - the connection parameters

Throws:

SQLException

closeConnections

public void closeConnections()
                      throws SQLException

Description copied from interface: CachingConnectionFactory

Closes all open connections in this factory's cache.

Specified by:

closeConnections in interface CachingConnectionFactory

Throws:

SQLException