EJB
Enterprise JavaBeans
EJB are write once, run any where, middle tier components
Logical Architecture
A EJB system is logically a three-tier system. The three tiers are
1. client
2. EJB server
3. Database
EJB’s Role
EJB specifies an execution environment
Container provides services in EJB
Container does not allow to access bean
directly from client

EJB Exists in the Middle tier
Business rules (Methods)

EJB Supports transaction processing
Container start a new transacti ....etc

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Prenormalization Rounding in IEEE Floating-Point Operations Using a Flagged Prefix Adder,
This paper demonstrates howIEEE 754 floating-point standard compliant rounding can be merged with carry-propagate addition in floating-point unit (FPU) designs by using a novel adaptation of the prefix adder. The paper considers add/subtract, multiply, and SRT divide operations and demonstrates that in every case a generic rounding architecture based on a prefix adder with a small amount of additional logic is sufficient to cover all the rounding modes. ....etc

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Title: Automation of Marketing Operations
For: Final Yr. MCA/B.Tech./B.E.(Computer Science)
Technology used: Visual Basic & Oracle
CD will contains: 1. Software Program, 2. Synopsis, 3. Full Project Report
LIST OF CONTENTS of the ready PROJECT REPORT are as follows :-
 Title of the Project
 Introduction
 Objective
 Tools and Platform (VB, Oracle)
 System Analysis
 Identif ....etc

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we want abstract & base paper material for human sense robot for rescue operations using zigbee wireless video & mems joystick ....etc

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Overview of Enterprise JavaBeans (EJB)



Applications to Date

Web Applications (Servlets/JSPs)
Provided user interface
access to database
simple business logic
no transactions except at the database level; no distributed transactions across business logic
Distributed Applications (RMI)
Distributed access to business logic
access to, but no direct support for database
limited transactions
We have to write a lot of ‘plumbing’ code

What didn’t we address ?

Could someone else deploy ....etc

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BRIEF INTRO OF THE PROJECT: -
In this system the various operations of sales and distribution system of a company are computerized. Project will address the various management aspects related to Order processing (Billing), stock management (Inventory), credit records, sales performance monitoring, payment accounting (Finances) etc.

MODULES OF THE PROJECT: -
:: Enrolment Module. ::
o Product Enrolment
o Agent Enrolment
o Company Enrolment
o Area Enrolment
o Distributor Enrolment

:: Order Processing Module. ::
o Purchase or ....etc

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In the past decade robotics and the Internet, fed by the great advances in computing and networking, matured into giant interdisciplinary scientific fields. Therefore, it is not surprising that many are trying to merge these two technologies and develop Internet-based robotic teleoperation. More interestingly, Internet-based bilateral teleoperation, where supermedia is fed back to the operator in order to increase efficiency and achieve telepresence. Supermedia is the collection of multimedia (video, audio, ...), haptic and other sensory infor ....etc

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Hello World application with EJB



Steps to be followed
1. Component development
* Describe Remote interface
* Describe Home interface
* Implement the Bean class
2. Write deployment descriptor(s)
3. Package in an archive (jar file) all EJB files
4. Deployment into the container
5. Implement the client application
4
Remote interface : HelloWorld.java
z Corresponds to the interface description
z Gives the list of the methods the client can cal ....etc

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import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.Choice.*;
//
public class Awte extends Applet implements TextListener,ActionListener
{
int a,b,c;
String s;
TextField f1,f2,f3;
Label l1,l2,l3;
Button Add,Sub,Mul,Div;
public void init()
{
//setBackground(Color.green);
setForeground(Color.red);
l1=new Label(First number);
l2=new Label(Second number);
l3=new Label(Result);
f1=new TextField(10);
f2=new Te ....etc

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WOULD YOU PLEASE SEND ME EJB SEMINAR ABSTRACT WITHIN HALF AN HOUR.PLEASE I NEED IT A LOT ....etc

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