[jbossts-issues] [JBoss JIRA] Reopened: (JBTM-491) WS-AT needs ot provide an API allowing a Subordinate Transaction to be created and managed from within an AT transaction.

Andrew Dinn (JIRA) jira-events at lists.jboss.org
Wed Feb 25 06:32:55 EST 2009

     [ https://jira.jboss.org/jira/browse/JBTM-491?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrew Dinn reopened JBTM-491:

The proposed API method beginSubordinate() enabliong an AT subtransaction to be created and entered should be relocated to a new class UserSubordinateTransaction and renamed as begin(). The implementation of  UserSubordinateTransaction should also provide commit() and rollback() methods which throw an exception. Access to an instance of UserSubordinateTransaction should be via a getter on UserTransactionFactory().

Although this method will still be exposed and documented as a supported public API it will normally be employed internally by a server side handler registered by the web service.

> WS-AT needs ot provide an API allowing a Subordinate Transaction to be created and managed from within an AT transaction.
> -------------------------------------------------------------------------------------------------------------------------
>                 Key: JBTM-491
>                 URL: https://jira.jboss.org/jira/browse/JBTM-491
>             Project: JBoss Transaction Manager
>          Issue Type: Feature Request
>      Security Level: Public(Everyone can see) 
>          Components: WS-T Implementation
>    Affects Versions: 4.5
>            Reporter: Andrew Dinn
>            Assignee: Andrew Dinn
>             Fix For: 4.6
> A web service executing within a WS-AT transaction may wish to interpose a subordinate coordinator between itself and its own coordinator. To do so it needs to be able to start a subordinate WS-AT transaction. The current API for creating AT transactions requires calling UserTransactionFactory.userTransaction() to obtain an instance of UserTransaction and then calling begin() (or begin(final int timeout)) on the returned UserTransaction to start the transaction. If this is done within an existing AT transaction a WrongStateException is thrown. This request proposes to add the following methods to UserTransaction()
> public void beginSubordinate() throws WrongStateException, SystemException;
> public void beginSubordinate(int timeout) throws WrongStateException, SystemException;
> These methods will begin a subordinate transaction so long as the thread is currently associated with a WS-AT transaction. WrongStateException will be thrown if the thread is not currently associated with a WS-AT transaction. SystemException will be thrown if a problem occurs starting the transaction (this can occur for much the same reasons it can occur with the normal begin methods).

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