Exception handling in EJB, JAVA Programming

Assignment Help:

Java has two kinds of exceptions:

1. Checked exception: handled from java.lang.Exception but not java.lang.RuntimeException.

2. Unchecked exception: handled from java.lang.RuntimeException thrown by JVM.

 

1273_Exception handling in EJB.png

 

EJB has two kinds of exceptions:

1. System   Exception :   is   an   unchecked   exception produced   from java.lang.RuntimeException.   An EJBException is an unchecked exception, which is started from java.lang.RuntimeException.

2. Application Exception : is generic to an application and thrown because of violation of business rules. An Application Exception is a checked exception that is either described by the bean developer and does not import java.rmi.RemoteException.

A  System  Exception  is  given  by  the  system  and  is  not  recoverable. Because the System Exceptions are unpredictable when they occur, the EJB container is the only one responsible for trapping the System Exceptions. The container usually wraps any RuntimeException in RemoteException, which subsequently puts thrown to the caller. In addition to intercepting System Exception the container can give the errors.

 


Related Discussions:- Exception handling in EJB

Need android geolocation service app, Need Android GeoLocation Service App ...

Need Android GeoLocation Service App Project Description: I want an android service app that will run on the background. The app has to get the users location (latitude an

Develop a fantasy football, Need to develop a Fantasy football Project D...

Need to develop a Fantasy football Project Description: I am seeking to build a Fantasy football website. i already have an example of existing website. i want the exact same

Jumps in loops, explain jumps in loops and explain labelled loops

explain jumps in loops and explain labelled loops

Explain the library java.lang.math, Explain the library java.lang.Math ? ...

Explain the library java.lang.Math ? The Java class library is huge. We will not cover it all presently. In fact, the remaining eight classes will focus mostly on the class lib

2D arrays, write an application that stores at least five different departm...

write an application that stores at least five different department and supervisor names in a two dimensional array

Need to develop chat application for j2me, Need to develop Chat application...

Need to develop Chat application for j2me and I want Image Processing code Project Description: We want a chat application for a community website. Image processing and co

Describe about basic java programming language, Describe about basic java p...

Describe about basic java programming language? 1. Study the Java programming language: its syntax, patterns, idioms, and styles. 2. Become comfortable along with object orien

Java Login/Register Web CMS, I need help setting up and fleshing out a basi...

I need help setting up and fleshing out a basic outline/structure for a basic Java web app using an MVC pattern

How dos attack is a cyber crime what cyber crime can be used, How DoS attac...

How DoS attack is a cyber crime? For what cyber crime can be used? DoS stands for Decline of Service and it is a cyber crime as it jams and within a few cases shut down the goa

Bluej program, program to find the frequency of a digit in a number

program to find the frequency of a digit in a number

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd