13.07.2015 Views

IBM WebSphere V5.0 Security - CGISecurity

IBM WebSphere V5.0 Security - CGISecurity

IBM WebSphere V5.0 Security - CGISecurity

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CMP EJB 2.0Persistence ManagerDatastore AdapterRelationalResourceAdapterCCIProceduralResourceAdapterlSPIJDBC / J2CConnectionManagerFigure 7-29 <strong>WebSphere</strong> Application Server V5 Connection ManagerThe Persistance Manager uses the Common Client Interface (CCI) to connect toResource Adapters, which provides access from J2EE clients, such as EJBs,JSPs, and servlets to an Enterprise Information System (EIS), so that thedeveloper need not worry about the underlying semantics.Resource Adapter is a system level software driver used by a Java application toconnect to the Enterprise Information System. The resource adapter plugs intothe application server to provide connectivity between application server and theEnterprise Information System.JDBC usage of JCA connection managerIn <strong>WebSphere</strong> Application Server V5, the JDBC Connection Managerarchitecture is slightly different from that of <strong>WebSphere</strong> Application Server V4.EJB 2.0 Persistence Manager is based on J2C connections. It requires J2C styleconnection factory, interactions, cleanup and so on for JDBC connections. Thismeans that in <strong>WebSphere</strong> Application Server V5 a J2C Relational ResourceAdapter is handling the JDBC connections.<strong>WebSphere</strong> Application Server V5 supports both J2EE 1.2 and J2EE 1.3applications.174 <strong>IBM</strong> <strong>WebSphere</strong> <strong>V5.0</strong> <strong>Security</strong> Handbook

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