Tuning A Container For Entity Bean Optimizations - Red Hat APPLICATION SERVER - JONAS Manual

Chapter 8. Developing Entity Beans
tJoin_AB
cfk_id1A
...
In this case, there is a join table composed of the foreign keys of each Entity Bean table.
8.11.4.2.3. JOnAS Deployment Descriptor
.....
jonas-ejb-relation
ejb-relation-name a-b /ejb-relation-name
jdbc-table-name tJoin_AB /jdbc-table-name
jonas-ejb-relationship-role
ejb-relationship-role-name a2b /ejb-relationship-role-name
foreign-key-jdbc-mapping
foreign-key-jdbc-name cfk_id1b /foreign-key-jdbc-name
key-jdbc-name c_id1b /key-jdbc-name
/foreign-key-jdbc-mapping
foreign-key-jdbc-mapping
foreign-key-jdbc-name cfk_id2b /foreign-key-jdbc-name
key-jdbc-name c_id2b /key-jdbc-name
/foreign-key-jdbc-mapping
/jonas-ejb-relationship-role
jonas-ejb-relationship-role
ejb-relationship-role-name b2a /ejb-relationship-role-name
foreign-key-jdbc-mapping
foreign-key-jdbc-name cfk_id1a /foreign-key-jdbc-name
key-jdbc-name c_id1a /key-jdbc-name
/foreign-key-jdbc-mapping
foreign-key-jdbc-mapping
foreign-key-jdbc-name cfk_id2a /foreign-key-jdbc-name
key-jdbc-name c_id2a /key-jdbc-name
/foreign-key-jdbc-mapping
/jonas-ejb-relationship-role
/jonas-ejb-relation
.....

8.12. Tuning a Container for Entity Bean Optimizations

JOnAS must make a compromise between scalability and performance. Towards this end, we
have introduced some tags in the JOnAS-specific deployment descriptor. For most applications,
there is no need to change the default values for all these tags. For a complete description of the
JOnAS-specific deployment descriptor, see
(http://jonas.objectweb.org/current/xml/jonas-ejb-jar_4_0.xsd).
8.12.1. Lock-Policy
The JOnAS ejb container can manage four different lock-policies:
cfk_id2A
...
cfk_id1B
...
$JONAS_ROOT/xml/jonas-ejb-jar_4_0.xsd
115
cfk_id2B
...