WAS v8.5 > WebSphere applications > Data access resourcesData concepts
Subtopics
- Relational resource adapters and JCA
Resource adapters are system-level software drivers used by Java applications to connect to an enterprise information system (EIS). Resource adapters plug into application servers, providing connectivity between the EIS, the application server, and the enterprise application.- JDBC providers
Installed applications use JDBC providers to interact with relational databases.- Data sources
Applications use a data source to obtain connections to a relational database. A data source is analogous to the Java EE Connector Architecture (JCA) connection factory, which provides connectivity to other types of enterprise information systems (EIS).- Data access beans
Data access beans provide a rich set of features and function, while hiding much of the complexity associated with accessing relational databases.- Connection management architecture
The connection management architecture for both relational and procedural access to enterprise information systems (EIS) is based on the Java EE Connector Architecture (JCA) specification.The Connection Manager (CM), which pools and manages connections within an application server, is capable of managing connections obtained through both resource adapters (RAs) defined by the JCA specification, and data sources defined by the JDBC 2.0 (and later) Extensions specification.
- Data access: Resources for learning
Use the following links to find relevant supplemental information about data access. The information resides on IBM and non-IBM Internet sites, whose sponsors control the technical accuracy of the information.- Service Data Objects: Resources for learning
Use the following links to find relevant supplemental information about the service data object and various other functions that can be used with it. The information resides on IBM and non-IBM Internet sites, whose sponsors control the technical accuracy of the information.