JDBC 4.0 adds new capabilities to Connections:
- LOB creation - New methods, createBlob() and
createClob() let you create empty Blobs and Clobs, which you
can then fill up before stuffing into a column.
- Ease of development - JDBC 4.0 introduces DataSet, a simple
mechanism to iterate through a table. You obtain
a DataSet by passing an annotated query to
your Connection's createQueryObject method.
- Validity tracking - The isValid method tells you
whether your Connection is still alive.