EJBs can be clients of other EJBs. It just works. Use JNDI to locate the Home Interface of the other bean, then acquire an instance reference, and so ...
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In case of a stateless session bean it may not matter if we call or not as in both cases nothing is done. The number of beans in cache is managed by t ...
The primary key can't be a primitive type--use the primitive wrapper classes, instead. For example, you can use java.lang.Integer as the primary key c ...
How EJB Invocation happens?
Posted by Devin
Step 1: Retrieve Home Object reference from Naming Service via JNDI.
step 2: Return Home Object reference to the client.
step 3: Create me a new EJB O ...
Transaction_read_uncommitted , Transaction_read_committed , Transaction_repeatable_read...........
[Source: JAGAN MOHAN "Interview questions bible"] ...
What are transaction attributes?
Posted by Devin
The transaction attribute specifies how the Container must manage transactions for a method when a client invokes the method via the enterprise bean†...
What is bean managed transaction?
Posted by Devin
If a developer doesn't want a Container to manage transactions, it's possible to implement all database operations manually...........
[Source: JAGA ...
Yes. In some cases the data is inserted NOT using Java application,...........
[Source: JAGAN MOHAN "Interview questions bible"]
[Source: JAGAN MOHAN "Interview questions bible"]