You can obtain a simple RA for development use from the J2EE Connector Architecture home page at the http://java.sun.com/j2ee/connector/index.html. These RAs, called the black box adapters, are simple wrappers over the JDBC API and can be used with any relational database. Depending on the transaction level supported by the relational database, you should use the relevant RA. The list of black box RAs for a specific transaction level is given in Table 21.1. Table 21.1. Black box RAs | Resource adapter | Transaction level supported | | blackbox-notx.rar | No transaction | | blackbox-tx.rar | Local transactions | | blackbox-xa.rar | JTA XA-based transactions | | cciblackbox-tx.rar | Local transactions | | cciblackbox-xa.rar | JTA XA-based transactions | |