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Session Bean: is a non-persistent object that provides some business logic running on the server. Session beans do not provide system break down. There are two kinds of session beans
1. Stateless session beans
2. Stateful session beans
Entity Bean: is a persistent object that presents object views of the data, generally a row in a database. They have the primary key as a unique key identifier. Multiple EJB clients can give each entity bean. Entity beans may provide system shutdowns. Entity beans can have two kinds of persistence
1. Container-Managed Persistence (CMP) - The container is responsible for providing the bean's state.
2. Bean-Managed Persistence (BMP) - The entity bean is responsible for giving its own state.
Message-driven Bean: is added with the Java Message Service (JMS) to give the ability to react as a message consumer and perform asynchronous processing between the message producer and the server.
When should I use abstract classes and when should I use interfaces? Use Interface, when: Design changing often or when various implementations only share method sign
Exercise 1) Lets start by query example in SPARQL: QUERY: What are the school's names that belong to the "local authority district" 00AA? NOTE 1: "Authority districts" divide UK i
Admin panel to upload my html, php, psd templates Project Description: -Upload my psd file and convert -Login panel -Client login panel -Encryption code -Send dem
Task 1- Design the complete user interface of the simulation. Task 2 -Design the record structures of the text files that are required to drive the working simulation. Populate
a program to find the area under curve y=f(x) between x=a and x=b,integrate y=f(x) between the limits of a and b
A Scrollbar is a Component while Scroll Panel is a Container. A Scroll Panel handles its own events and performs its own scrolling.
Explain term Literals in java? Literals are pieces of Java source code which mean exactly what they say. For example "Hello World!" is a String literal and its meaning is the w
codes to create boggle game
Need the following code in double var instead of integer. import javax.swing.*; public class arrayVar { public static void main (String[] args) //This is our main method prompt
What is PortableRemoteObject.narrow() method and what is used for? Ans) Java RMI-IIOP gives a mechanism to narrow the the Object you have received from from your
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