The following table describes the functionality that you can use with EJB access. For details on the functionality, see the description in Reference location.

Table 2-13 Functionality that you can use with EJB access

Category		Functionality	Explanation	Reference manual#	Reference location
JNDI	Basic functionality	Binding and lookup of objects to JNDI namespace	You can lookup the reference of EJB home objects and business interface from Naming Service by using automatically bound name (Portable Global JNDI name or name starting with HITACHI_EJB) or user-specified namespace.	Common Container Functionality Guide	2.3
	Extended functionality	Searching CORBA Naming Service with round-robin policy	For the systems, which are configured with multiple Naming Service and J2EE servers, you can perform lookup from a batch application with round robin. Accordingly, you can achieve load balancing.		2.7
		Caching by naming management functionality	You can maintain (cache) objects, looked up from Naming Service, on memory. You can decrease cost on access performance to Naming Service by using cache.		2.8
EJB		Executing Enterprise Bean	You can invoke Enterprise Bean, being executed in EJB container, from a batch application. However, you can use only remote invocation method. You cannot perform local invocation.	EJB Container Functionality Guide	2.2
		Invoking Enterprise Bean			3.4
		Acquiring RMI-IIOP stub and interface	You can invoke an application from a batch application by using RMI-IIOP functionality of Cosminexus TPBroker.		3.7
		Invoking remote interface of EJB	You can select send operation if communication failure occurs when invoking EJB from a batch application.		2.13
Transaction		Transaction management	You can start and conclude transactions in a batch application. However, you cannot use global transactions in a batch application.	Common Container Functionality Guide	3.4
		Implementing transactions in EJB client application	You can start and conclude transactions in a batch application by acquiring UserTransaction. The following two methods are used to acquire UserTransaction: Method in which UserTransactionFactory class is used Method in which lookup is used	EJB Container Functionality Guide	3.5
Others		Setting timeout in EJB container	You can set up a timeout of the RMI-IIOP communication in communication between a batch server and a Naming Service, and a batch server and a J2EE server. In a batch application, a timeout of Stateful Session Bean, timeout of EJB object of Entity Bean, and timeout of instance acquisition waiting are not applicable.	EJB Container Functionality Guide	2.11
		Performance analysis of system that uses performance analysis trace	You can output performance analysis trace of batch application.	Maintenance and Migration Guide	Chapter 7
		Outputting user log of an application	You can output log of a batch application.	This manual	Chapter 9

# uCosminexus Application Server is omitted in the manual names mentioned in Reference manual.