What are the three different types of Enterprise Java bean
Session bean
Entity bean
Message Driven bean
Object bean
To access an application deployed in server, client invokes
Session bean method
Entity bean method
Message driven method
Object Bean method
Among the following, which are the types of session bean
stateless
statefull
BMP
CMP
When to use stateless session bean?
Beans need to hold information
retrieve data
connect the client
No data for a specific client
When to use stateful session bean?
No data for a client
Beans needs to hold information across method invocations.
when business object should be stored
to send data for a specific application
when to use entity bean?
when business object should be stored in persistant storage mechanism.
if information have to be passed from one group to other.
to review the data in other application
to check with the client.
EJB has no instance variables but only
simple instances
classes and objects
getter and setter methods
business application
Clients do not access these beans through interfaces
message driven bean
entity bean
stateles session bean
stateful session bean
JMS and JAXM are the types of message driven bean.
True
False
among the following, what are the types of entity beans?
JMS
JAXM