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How can i rollback the Transactions when using with CMT in EJB3.0

 
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My requirement is to rollback a Transaction which acts with (REQUIRED) Transaction Attribute .

How can i tell the container to rollback a transaction when using with CMT in EJB3.0

Any help appreciated.
 
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PavanPL KalyanK wrote:


How can i tell the container to rollback a transaction when using with CMT in EJB3.0


The container will rollback the transaction if there is any system exception thrown during the transaction.
 
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Get the context of the bean and use this method context.setRollbackOnly();

For example in MDB


 
PavanPL KalyanK
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Jaikiran Pai wrote:

PavanPL KalyanK wrote:


How can i tell the container to rollback a transaction when using with CMT in EJB3.0


The container will rollback the transaction if there is any system exception thrown during the transaction.



But i want to do it for ApplicationException also.

I need tospecify to the Container that if @ApplicationException(rollback=true).

Any ideas?
 
Anurag Blore
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Does ApplicationException means the Exception which you have defined in your application?

Please check this post on Java Ranch may be useful.

ranch link
 
PavanPL KalyanK
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It was really a nice link.THanks for sharing.

ApplicationException means the Exception which you have defined in your application? (This is for my Business Requirement )

For example RecordNotFoundException .

Now i want to tell my container if RecordNotFoundException (ApplicationException) comes rollback it.

How do i register this RecordNotFoundException in the XML file?

Any help.
 
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PavanPL KalyanK wrote:
But i want to do it for ApplicationException also.

I need tospecify to the Container that if @ApplicationException(rollback=true).

Any ideas?


Just do it, what is the problem?
 
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Hello Kengkaj ,

Do you know what the Author is referring to ??

He can have many ApplicationExceptions like DataNotFoundException ResourceNotFoundException ----etc.

Now how to say the container that these belong to ApplicationException and Not SystemException and how to rollback or commit when these occur.
 
PavanPL KalyanK
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Hi Ravi,

Thanks for extending my question.

Can anybody please tell me how could you do this

Thanks in advance.
 
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RaviNada Kiran wrote:Hello Kengkaj ,

Do you know what the Author is referring to ??

He can have many ApplicationExceptions like DataNotFoundException ResourceNotFoundException ----etc.

Now how to say the container that these belong to ApplicationException and Not SystemException and how to rollback or commit when these occur.



Not sure I understand. Why would you commit when an exception is thrown?

I'm also not sure what having many ApplicationExceptions is an issue either, why can't these just be annotated accordingly?


 
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You can do it:

@ApplicationException(rollback=true)
public class MyBusinessException extends RuntimeException {
(...)
}

And then:
public class MyException2 extends MyBusinessException {
(...)
}

Then:
public class MyException3 extends MyBusinessException {
(...)
}

And so on....

@ApplicationException(rollback=true) will be propagated to MyException2, MyException3, .... etc...

Hope this helps.
 
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