Amazon Redshift will no longer support the creation of new Python UDFs starting Patch 198. Existing Python UDFs will continue to function until June 30, 2026. For more information, see the [ blog post ](https://aws.amazon.com/blogs/big-data/amazon-redshift-python-user-defined-functions-will-reach-end-of-support-after-june-30-2026/). 

# Registering the driver class
<a name="jdbc20-register-driver-class"></a>

Make sure that you register the appropriate class for your application. You use following classes to connect the Amazon Redshift JDBC driver to Amazon Redshift data stores:
+ `Driver` classes extend `java.sql.Driver`.
+ `DataSource` classes extend `javax.sql.DataSource` and `javax.sql.ConnectionPoolDataSource`.

The driver supports the following fully qualified class names that are independent of the JDBC version:
+ `com.amazon.redshift.jdbc.Driver`
+ `com.amazon.redshift.jdbc.DataSource`

The following example shows how to use the DriverManager class to establish a connection for JDBC 4.2.

```
            private static Connection connectViaDM() throws Exception
{
Connection connection = null;
connection = DriverManager.getConnection(CONNECTION_URL);
return connection;
}
```

The following example shows how to use the `DataSource` class to establish a connection.

```
 private static Connection connectViaDS() throws Exception
{
Connection connection = null;
11
Amazon Redshift JDBC Driver Installation and Configuration Guide
DataSource ds = new com.amazon.redshift.jdbc.DataSource
();
ds.setURL(CONNECTION_URL);
connection = ds.getConnection();
return connection;
}
```