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https://issues.apache.org/jira/browse/TUSCANY-1869?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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gengshaoguang updated TUSCANY-1869:
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    Attachment: derby_jdbc_XAResource.png

Diagram derby* shows the XAResource provided by derby.

So a derby manipulate component (such as an implementation-das) will be 
enlisted in a global transaction manager only if it use Objects in this diagarm.

(diagram mysql* has a mistake: XAResource is under package javax.tranaction.xa)

Furtherly, an factory like the one from objectweb's xapool could be developed 
to flatten the differences of using XAResource of different database vendors.

> one step further, enlist *ws over jms* and local XAResource in one transaction
> ------------------------------------------------------------------------------
>
>                 Key: TUSCANY-1869
>                 URL: https://issues.apache.org/jira/browse/TUSCANY-1869
>             Project: Tuscany
>          Issue Type: Improvement
>          Components: Java SCA Core Runtime
>    Affects Versions: Java-SCA-Next
>         Environment: svn trunk, jencks, activemq
>            Reporter: gengshaoguang
>         Attachments: derby_jdbc_XAResource.png, mysql_jdbc_xaresource.png, 
> outbound_xaresource.png, sca_diagram_2_references_in_1_transaction.gif
>
>


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