What to do if we want to do the same with DataSource?

If you need to do the same with DataSource in Java, it usually involves managing a connection pool or configuring the data source.

For example, if you're using HikariDataSource or another pool, you can set pool parameters:

HikariDataSource ds = new HikariDataSource();
ds.setJdbcUrl("jdbc:postgresql://localhost:5432/mydb");
ds.setUsername("user");
ds.setPassword("password");
ds.setMaximumPoolSize(50); // limit on the number of connections

If the task is to limit the wait time or the maximum lifetime of a connection, DataSource also has corresponding methods.

If you need to perform some operation with DataSource, similar to another implementation, you can use the DataSource interface and work with it through getConnection().

Thus, "the same" with DataSource means configuring and managing the connection pool via its API, not directly through the driver or low-level methods.