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From "Anurag Shekhar (JIRA)" <derby-...@db.apache.org>
Subject [jira] Updated: (DERBY-1155) Separate XAResource from EmbedXAConnection
Date Tue, 28 Mar 2006 12:31:22 GMT
     [ http://issues.apache.org/jira/browse/DERBY-1155?page=all ]

Anurag Shekhar updated DERBY-1155:
----------------------------------

    Attachment: derby-1155.diff

Description of patch

Introduced new class EmbedXARessource. This class implements XAResources. I have moved all
XAResource methods to this class.

Modified classes
EmbedXAConnection
	Removed all the XAResource methods.
XATransactionState
	This class now uses EmbedXAResource (earlier it was using EmbedXAConnection because it also
had implementation of XAResource)

updated master files
	checkDataSource30.out
	checkDataSource.out
SecurityManager now checks additional class EmbedXAResource, which implements XAResource.
Out files now have one extra line.

> Separate XAResource from EmbedXAConnection
> ------------------------------------------
>
>          Key: DERBY-1155
>          URL: http://issues.apache.org/jira/browse/DERBY-1155
>      Project: Derby
>         Type: Improvement
>   Components: JDBC
>     Versions: 10.2.0.0
>  Environment: all
>     Reporter: Anurag Shekhar
>     Assignee: Anurag Shekhar
>  Attachments: derby-1155.diff
>
> jdbc4.0 introduces two new methods in javax.sql.PooledConnection. Due to this a new implementation
of PooledConnection and XAConnection for jdbc4.0 is required. According to current hierarchy
XAConnection extends from PooledConnection. Going by similar hierarchy for new classes PooledConnection40
will extend from PooledConnection and XAConnection40 will be extending from PooledConnection40.

> This structure forces to replicate all the methods of XAConnection to be present in XAConnection40
too. In the current implementation EmbedXAConnection itself is XAResource. This will cause
to replicate all the XAResource methods to be present in XAConnection40. 
> Separating these two implementation will save replication of lots of methods.
> See the comments on jira issue 1137 for some more discussion about this issue.

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