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# Configure resource adapters

A resource adapter is a system library specific to an Enterprise Information System (EIS) and provides connectivity to an EIS. A resource adapter is analogous to a JDBC driver, which provides connectivity to a database management system. The interface between a resource adapter and the EIS is specific to the underlying EIS. The resource adapter plugs into an application server, such as WebLogic Server, and provides seamless connectivity between the EIS, application server, and enterprise application.

WebLogic Server supports resource adapters developed under the J2EE 1.0 and 1.5 Connector Architectures. For information about developing resource adapters, see:

- Sun Microsystems J2EE Connector Architecture Specification, Version 1.5 Final Release: http://java.sun.com/j2ee/connector/
- Programming WebLogic Resource Adapters

A resource adapter is packaged and deployed like any other application. Its initial configuration can be specified in its deployment descriptor files, `ra.xml` and `weblogic-ra.xml`. You can configure the following aspects of a resource adapter using the Administration Console:

- Configure resource adapter properties
- Configure outbound connection pool properties
- Configure administered object properties
- Create credential mappings
- Configure security principals

Related Tasks

- Install applications and modules

Related Topics

- Understanding Resource Adapters
- Packaging and Deploying Resource Adapters