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EJB Certification (OCEEJBD)
posted 10 years ago
i am trying to fetch data in my web based application.
I am trying to fetch a list of data from the database using DAO, stateless session bean as facade.
The list data that i fetch will be in web tier. I present part of the data to the client in a screen.
user --->List JSP-->
Controller --> Search Action---> Search Processor Business Delegate --> Stateless Session Bean---> DAO --- DB;
Depending on what the user selects the remaining data (--DETAILS WHICH IS ALREADY AVAILABLE IN THE SEARCH DATA BUT NOT SHOWN TILL NOW) will also be shown.
Now pls. confirm if it is right to shown as below as the data is already available in the web tier...
User ---------> List JSP--> Servlet Controller ---> Order Detail
FLIGHT LIST --- display the entire list
Use of DAO in SCJEA Assignment
java application accessing the ejb
As i am drawing sequence diagram for prepare itinerary...
Strict separation of tiers