4.2.4 Using Connector/J with MySQL Cluster

JDBC clients of a MySQL Cluster data source, and using Connector/J 5.0.6 (or later), accept jdbc:mysql:loadbalance:// URLs (see Driver/Datasource Class Names, URL Syntax and Configuration Properties for Connector/J), with which you can take advantage of the ability to connect with multiple MySQL servers to achieve load balancing and failover.

However, while Connector/J does not depend on the MySQL client libraries, it does require a connection to a MySQL Server, which ClusterJ does not. JDBC also does not provide any object mappings for database objects, properties, or operations, or any way to persist objects.

See MySQL Connector/J Developer Guide, for general information about using Connector/J.