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From "Bernt M. Johnsen (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-2084) getTransactionIsolation() in network client should not activate a transaction
Date Tue, 14 Nov 2006 13:25:39 GMT
     [ http://issues.apache.org/jira/browse/DERBY-2084?page=all ]

Bernt M. Johnsen updated DERBY-2084:
------------------------------------

    Attachment: DERBY-2084.diff

Simple patch uploaded.

> getTransactionIsolation() in network client should not activate a transaction
> -----------------------------------------------------------------------------
>
>                 Key: DERBY-2084
>                 URL: http://issues.apache.org/jira/browse/DERBY-2084
>             Project: Derby
>          Issue Type: Bug
>          Components: Network Client
>    Affects Versions: 10.2.1.6, 10.3.0.0, 10.1.3.1
>            Reporter: Bernt M. Johnsen
>         Assigned To: Bernt M. Johnsen
>         Attachments: DERBY-2084.diff
>
>
> getTransactionIsolation() is implemented by means of             
>      rs = getTransactionIsolationStmt.executeQuery("values current isolation");
> This will activate a transaction. Thus the code snippet
>         Connection conn = 
>             DriverManager.getConnection(url);
>         conn.setAutoCommit(false);
>         int tx = conn.getTransactionIsolation();
>         conn.close();
> will fail with
> java.sql.SQLException: Cannot close a connection while a transaction is still active.
>         at org.apache.derby.client.am.SQLExceptionFactory.getSQLException(Unknown Source)
>         at org.apache.derby.client.am.SqlException.getSQLException(Unknown Source)
>         at org.apache.derby.client.am.Connection.closeResourcesX(Unknown Source)
>         at org.apache.derby.client.am.Connection.closeX(Unknown Source)
>         at org.apache.derby.client.net.NetConnection.closeX(Unknown Source)
>         at org.apache.derby.client.am.Connection.close(Unknown Source)
>         at org.apache.derby.client.net.NetConnection.close(Unknown Source)
>         at GetTransactionIsolation.test(GetTransactionIsolation.java:12)
>         at GetTransactionIsolation.main(GetTransactionIsolation.java:22)
> Caused by: org.apache.derby.client.am.SqlException: Cannot close a connection while a
transaction is still active.
>         at org.apache.derby.client.am.Connection.checkForTransactionInProgress(Unknown
Source)
>         ... 7 more

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