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

I want crime management website, I want Crime Management website Project...

I want Crime Management website Project Description: It is a web based project build in J2EE as front end and Oracle as back end for peoples so they will register complaints

What is struts framework, Struts framework is an open-source framework for ...

Struts framework is an open-source framework for producing the web applications in Java EE, based on MVC-2 architecture. It uses and extends the Java Servlet API. Struts are robust

Define when to use hashmap and when to use treemap, How do you decide when ...

How do you decide when to use HashMap and when to use TreeMap? When we want to perform deletion, insertion and locate elements in a Map then HashMap is used. Whereas TreeMa

Develop a computer program and application, Develop a Computer program and ...

Develop a Computer program and application. Project Description: I want a project done. It is a computer desktop application program. It is not very hard. If you need the det

Component developer to code in java, Component Developer to code in Java: ...

Component Developer to code in Java: Worked for Sansri's Gateway as Software Engineer . Here I Worked as a Component Developer to code in Java and J2EE technologies Here Ensu

Unix-like CLI in Java (simple), The assignment is implementing a CLI in Jav...

The assignment is implementing a CLI in Java with several usable commands, using Threads.

Explain continue statement with example, Explain continue statement with ex...

Explain continue statement with example? It is sometimes essential to exit from the middle of a loop. Sometimes you'll need to begin over at the top of the loop. Sometimes you'

What does the keyword "synchronize" mean in java, What does the keyword " s...

What does the keyword " synchronize " mean in java. What are the usage and disadvantages of synchronization?

Concurrent Programming, Problem 1 A savings account object holds a non-nega...

Problem 1 A savings account object holds a non-negative balance, and provides deposit(k ) and withdraw(k ) methods, where deposit(k ) adds k to the balance, and withdraw(k ) subtra

Publish subscribe model and p2p model, What is the basic difference among P...

What is the basic difference among Publish Subscribe model and P2P model? Ans) Publish Subscribe model is typically used in one-to-many situation. It is unreliable but very quic

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