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From "Lily Wei (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-4314) With derby client setTransactionIsolation executes and commits even if isolation has not changed
Date Sat, 18 Jul 2009 21:32:14 GMT

    [ https://issues.apache.org/jira/browse/DERBY-4314?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12732937#action_12732937
] 

Lily Wei commented on DERBY-4314:
---------------------------------

The patch is to change org.apache.derby.client.am.Connection according to the bug description.
When running suites.All, SetTransactionIsolationTest test failed. I think the failure was
due to the old behavior of DerbyNetClient. I change the test to reflect the new behavior.
I did not take out the logic for the old behavior. If I need to, I will be happy to do that.
The changes is made to trunk. I am running derbyall tests now.

> With derby client setTransactionIsolation executes and commits even if isolation has
not changed 
> -------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-4314
>                 URL: https://issues.apache.org/jira/browse/DERBY-4314
>             Project: Derby
>          Issue Type: Improvement
>          Components: JDBC, Network Client
>    Affects Versions: 10.1.3.1, 10.2.2.0, 10.3.3.0, 10.4.2.0, 10.5.1.1, 10.6.0.0
>            Reporter: Kathey Marsden
>            Priority: Minor
>         Attachments: DERBY-4314.diff
>
>
> With in EmbedConnection.setIsolation() we have a check to see if the isolation level
is the same and if so just return without doing a commit:
>   public void setTransactionIsolation(int level) throws SQLException {
> 		if (level == getTransactionIsolation())
> 			return;
> with org.apache.derby.client.am.Connection we have no such check. It would be good if
the client driver acted like embedded.

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