[DERBY-2084] getTransactionIsolation() in network client should not activate a transaction

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 10.1.3.1, 10.2.1.6, 10.3.1.4
• Fix Version/s: 10.1.3.2, 10.2.2.0, 10.3.1.4
• Component/s: Network Client
• Bug behavior facts: Regression
• Assignee: Bernt Johnsen
• Reporter: Bernt Johnsen
• Created: 14/Nov/06 12:30
• Updated: 30/Jun/09 15:55
• Resolved: 17/Nov/06 12:29

Description

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

Issue Links

• is part of: DERBY-310 Document and/or change Derby client code to match behavior with Embedded driver where possible.
• relates to: DERBY-638 Network driver setTransactionIsolation() causes a commit, but does not complete it locally
• relates to: DERBY-1148 Client XA getTransactionIsolation() does not return the correct isolation level when rejoining a global transaction