Toplink and websphere pool

Question

Hi,
The configuration : toplink 9.0.4.8, websphere 5.1.1.7, oracle 9.2.0.6, application j2ee, servlets, jsp.
Actually the application runs with toplink internal pool. it uses Toplink source java class not xml files.
I'm trying to use websphere pool.
In the application, I wrote :
Project lc_project = null;
try {
lc_project = (Project) Class.forName("com.beaufouripsen.seas.mapping.SeasV2").newInstance();
} catch (ClassNotFoundException cnfe) {
} catch (IllegalAccessException iae) {
} catch (InstantiationException ie) {
DatabaseLogin lc_login;
lc_server = lc_project.createServerSession();
lc_login = lc_server.getLogin();
DataSource lc_dataSource = null;
try {
Context lc_context = new InitialContext();
lc_dataSource = (DataSource) lc_context.lookup("java:comp/env/jdbc/SEAS");
} catch (NamingException e) {
Connector lc_connector = new JNDIConnector(lc_dataSource);
lc_login.setConnector(lc_connector);
lc_login.setUsesExternalConnectionPooling(true);
lc_login.setShouldTrimStrings(false);
lc_login.getPlatform().setUsesStreamsForBinding(true);
lc_server.login();
In the web.xml :
<resource-ref id="ResourceRef_1134138661750">
<res-ref-name>jdbc/SEAS</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Application</res-auth>
<res-sharing-scope>Shareable</res-sharing-scope>
</resource-ref>
On the webshere server i configured a datasource and J2C Authentication Data Entries :
Resources/JDBC providers/oracle 9 JDBC driver/data Sources
JNDI name : jdbc/SEAS
It did not work very well, this error message was written : One or more resources rolled back. An unresolved LocalTransactionContainment had an unresolved action of rollback.
So I modified the ibm.web.ext-xmi to manage local transaction :
<extendedServlets xmi:id="ServletExtension_1134139478078">
<extendedServlet href="WEB-INF/web.xml#Servlet_1099905191078"/>
<localTransaction xmi:id="LocalTransaction_1134139478078" boundary="BeanMethod" resolver="Application" unresolvedAction="Commit"/>
</extendedServlets>
Now I have an error : Exception Description: com.ibm.websphere.ce.cm.ObjectClosedException: DSRA9110E: Connection is closed.
Any help will be appreciated.
Regards,
Annie

Answer 1

With only one user and one TopLink client session only one connection should be used from the pool. Are there any other application components using that connection pool? Does the application throw this error on the first Query? What operations are being performed prior to the exception? Scrollable Cursors?
--Gordon