Similar to Web applications, EJBs, and enterprise applications in J2EE, resource adapters use two deployment descriptors to define their operational parameters. The deployment descriptor ra.xml is packaged inside the RAR in a subdirectory called META-INF and is defined by Sun Microsystems in the J2EE Connector Specification. The second deployment descriptor is specific to the J2EE application server and defines operational parameters unique to that server. There is no such file for WebSphere.

The RAR descriptor describes a number of Execution Unit (XU) properties that apply to the connector and not just a single ruleset.

If you want to modify the behavior of the XU in J2EE, you should edit the specific application server descriptors or use the administration console.

In J2SE, you can change the XU configuration by adding a ra.xml file with modified configuration property values to your classpath. This file will override the default_ra.xml descriptor provided in the jrules-bres-execution.jar.

The following XU configuration properties can be changed either in the application server administration console or in the connector deployment descriptor.

Related Concepts

Related Tasks