JDBC Services
Java EE applications access the database through JDBC data sources that abstract the database integration and connection management for them. A WebLogic Server JDBC data source encapsulates a JDBC driver, a set of connection information—pointing to a specific schema within an RDBMS of the type matching the data source’s driver—and a pool of active connections to the schema that is referred to by the connection information. Figure 2-2 illustrates the main elements of a WebLogic JDBC data source.
Upon startup, each WebLogic Server instance initiates its configured data sources with a certain number of active connections. Data sources are accessed by clients through a JNDI lookup, and the availability of the data source to a client’s ...
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