Oracle GlassFish Server 3.0.1 Application Development Guide

Deploying Read-Only Beans

Read-only beans are deployed in the same manner as other entity beans. However, in the entry for the bean in the sun-ejb-jar.xml file, the is-read-only-bean element must be set to true. That is:


Also, the refresh-period-in-seconds element in the sun-ejb-jar.xml file can be set to some value that specifies the rate at which the bean is refreshed. If this element is missing, no refresh occurs.

All requests in the same transaction context are routed to the same read-only bean instance. Set the allow-concurrent-access element to either true (to allow concurrent accesses) or false (to serialize concurrent access to the same read-only bean). The default is false.

For further information on these elements, refer to The sun-ejb-jar.xml File in Oracle GlassFish Server 3.0.1 Application Deployment Guide.