public void initialize ( ) throws SQLException { synchronized ( lock ) { source = createConnectionPool ( ) ; try { source . initializeFrom ( this ) ; } catch ( Exception e ) { throw new PSQLException ( GT . tr ( "Failed to setup DataSource." ) , PSQLState . UNEXPECTED_ERROR , e ) ; } while ( available . size ( ) < initialConnections ) { available . push ( source . getPooledConnection ( ) ) ; } initialized = true ; } }
Initializes this DataSource . If the initialConnections is greater than zero that number of connections will be created . After this method is called the DataSource properties cannot be changed . If you do not call this explicitly it will be called the first time you get a connection from the DataSource .