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

What is an exceptions, What is an Exceptions ? • What is an exception?...

What is an Exceptions ? • What is an exception? • try-catch • finally • The different kinds of exceptions • Multiple catch clauses • The throws clause • Throwing excepti

How can you performance tune your database?, 1. De normalizes your tables w...

1. De normalizes your tables where required. 2. Proper use of index columns: An index based on numeric parts is more efficient than an index based on character columns. 3. Re

Programing, A servey is done in M.P. by forest department finding different...

A servey is done in M.P. by forest department finding different types of species of birds the servey data covered four major cities indore,Bhopal,Gwalior,vidhisa. The result they o

Can a human doctor be replaced through an expert system, Can a human doctor...

Can a human doctor be replaced through an Expert System? Give reasons to support your answer. Expert System is a computer system that simulates the knowledge and expertise of a

Android and universal ios- multipurpose testing app, Android and Universal ...

Android and Universal iOS, Multipurpose Testing App Universal iOS and Android, versatile Testing App Based on Phonegap with the subsequent main features * Support single answ

Explain booleans in java, Explain Booleans in java? Booleans are named ...

Explain Booleans in java? Booleans are named after George Boole, a nineteenth century logician. Every boolean variable has one of two values, true or false. These are not the s

What is the use of lookupdispatchaction, LookupDispatchAction is useful if ...

LookupDispatchAction is useful if the method name in the Action is not driven by its name in the front end, but by the Locale independent key into the resource bundle. As the key i

What is testing for equality in java, What is Testing for Equality in java?...

What is Testing for Equality in java? Testing for equality is a little trickier. You would expect to test if two numbers are equal through using the = sign. However the = sign

State in detail about java virtual machine, State in detail about Java Virt...

State in detail about Java Virtual Machine (JVM) Central part of java platform is java virtual machine Java bytecode executes by special software known as a "virtual machine

Creating applications based on soa, Creating applications based on SOA ...

Creating applications based on SOA Select your implementation technologies carefully. Carefully check if Web services are suitable. Sometimes using traditional methods suc

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