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

State the java virtual machine and runtime environment, Java Virtual Machin...

Java Virtual Machine & Runtime Environment Basic Concept When you write a program in C++ it's called source code. C++ compiler converts this source code into the machine c

Statements and operators, Operator Functionality E x...

Operator Functionality E x ample/Explanation = Sets one value equal to another counter=0  Sets the counter to equivale

Exportobject of unicastremoteobject do, What does the exportObject of Unica...

What does the exportObject of UnicastRemoteObject do? Ans) Exports the remote object to make it available to receive incoming calls, using the certain supplied port. If port not

Explain about drawing lines, Explain about Drawing Lines? Drawing strai...

Explain about Drawing Lines? Drawing straight lines along with Java is easy. Just call g.drawLine(x1, y1, x2, y2) where (x1, y1) and (x2, y2) are the endpoints of your lines

Explain JMS, JMS ((java messaging service))is an acronym used for Java Mess...

JMS ((java messaging service))is an acronym used for Java Messaging Service. It is Java's answer to formed software using asynchronous messaging. It is one of the official specific

Collaboration diagrams, Collaboration diagrams are also communication diagr...

Collaboration diagrams are also communication diagrams. Collaboration diagrams give the same message as the sequence diagrams. But the collaboration diagrams depend on the object f

Advanced java info1414, This is a working program that shows election resul...

This is a working program that shows election results from the infamous 2000 presidential election involving a lot of Floridians and 'hanging chads'. The program as written reads a

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