How are JDBC 1.x driver classes used with JDBC 2.0 Datasources?
J2EE 1.3 applications requiring database access use JDBC connections retrieved from a BES datasource implementing the JDBC 2.0 interface javax.sql.Datasource. BES datasources are wrapper objects supporting JDBC 1.x and JDBC 2.0 driver classes. They transparently pool connections to back-end databases and associate TM-managed transactions demarcated using JDBC API’s. From BES 5.1 onwards, two datasources types exist: • JDBC 2.0 BES Datasource for JDBC 2.0 driver classes • JDBC 2.0 BES Datasource for JDBC 1.x driver classes JDBC 2.0 BES Datasources for JDBC 1.x driver classes are defined in a DAR module created using Deployment Descriptor Editor (DDE) with a DataSource Type of ‘Other(JDBC1x)’. Following is a sample definition of a JDBC 2.0 BES datasource for a JDataStore database using a JDBC 1.x target driver class. The main difference between a JDBC 2.0 BES datasource for JDBC 2.0 driver class and a JDBC 2.0 BES datasource for JDBC 1.x driver class is the
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