Explain the difference between, Java Class and Bean?
Answer Posted / john
A Java class is meant to carry out the different database
operations like retrtieveing data, inserting data and
updating data.
The EJB has the business logic within it. the EJB decides
what the business requires and carries out different
transactions. It makes use of the Java class to interact
with the database.
The Java Bean is simple java class which is contains Getters
and Setters. They are just meant to modify the values of the
variables. They neither contain any business logic nor do
they interact with the database.
Generaly a Java Class would retrieve some data and this data
is assigned to variables using the Setter method of the Java
Bean. If we want to retrieve the value of the cariable again
we use a Getter method
Is This Answer Correct ? | 22 Yes | 16 No |
Post New Answer View All Answers
What is ptp model?
A client wants to preserve the reference to the ejbhome object of an enterprise bean instance and use it later. Which of the following can be serialized for this purpose?
Which services are provided to ejb components by the ejb container?
What is mdb in ejb?
What do you understand by session facade?
how can u integrate ejb and hibernate? How can u call hibernateDAO methods in session bean?
Elucidate callback in ejb?
What are the components of session beam?
What are the various types of entity beam?
How entity beans support container managed persistence?
What is the full form of ejb in java?
What is a local interface?
What is meant by ejb?
What are the benefits of ejb?
Can an ejb send asynchronous notifications to its clients?