Custom login form to change data source

Question

Hi,
I actually went thru this link for some help on changing datasource at runtime.
http://www.jobinesh.com/2011/04/modifying-application-modules-jdbc.html.
Jdev version :11.1.2.2.0
What I am trying to is on my login screen i have three fields
User name Textbox
Pwd Textbox
DB ( SelectOne Choice)
Now when User is changing any db in SelectOneChoice(autosubmit =true) ,I am calling value change listener to set session variable.
public void dbChange(ValueChangeEvent valueChangeEvent) {
// Add event code here...
System.out.println("priint1");
//JSFUtils.setManagedBeanValue("sessionScope.dataSource", ADFUtils.getBoundAttributeValue("Name"));
JSFUtils.setManagedBeanValue("sessionScope.dataSource", valueChangeEvent.getNewValue());
System.out.println("priint2");
Also I am using DynamicEnvInfoProvider,code is as follows
package model;
import java.util.Hashtable;
import java.util.Map;
import oracle.adf.share.ADFContext;
import oracle.jbo.client.Configuration;
import oracle.jbo.common.ampool.EnvInfoProvider;
public class DynamicEnvInfoProvider implements EnvInfoProvider {
public DynamicEnvInfoProvider() {
super();
public Object getInfo(String infoType, Object env) {
if (EnvInfoProvider.INFO_TYPE_JDBC_PROPERTIES.equals(infoType)) {
Map session = ADFContext.getCurrent().getSessionScope();
//Object dsName = session.get(Configuration.JDBC_DS_NAME);
// System.out.println("Before "+session.get(Configuration.JDBC_DS_NAME));
Object dsName = session.get("dataSource");
System.out.println("Setting "+session.get("dataSource"));
System.out.println((String)dsName);
if (dsName != null) {
if (((Hashtable)env).containsKey(Configuration.JDBC_DS_NAME)) {
((Hashtable)env).put(Configuration.JDBC_DS_NAME,
(String)dsName);
//System.out.println("After "+session.get(Configuration.JDBC_DS_NAME));
return null;
public int getNumOfRetries() {
return 0;
@Deprecated
public void modifyInitialContext(Object initialContext) {
This is how appmodule config looks like
<?xml version = '1.0' encoding = 'UTF-8'?>
<BC4JConfig version="11.1" xmlns="http://xmlns.oracle.com/bc4j/configuration">
<AppModuleConfigBag ApplicationName="AppModule.AppModuleAM">
<AppModuleConfig DeployPlatform="LOCAL" jbo.project="model.Model" name="AppModuleAMLocal" jbo.txn.disconnect_level="1" ApplicationName="AppModule.AppModuleAM">
<Database jbo.TypeMapEntries="OracleApps" jbo.locking.mode="optimistic"/>
<Security AppModuleJndiName="AppModule.AppModuleAM"/>
<Custom JDBCDataSource="jdbc/ADFTRAINDS" jbo.envinfoprovider="model.DynamicEnvInfoProvider"/>
</AppModuleConfig>
<AppModuleConfig name="AppModuleAMShared" jbo.project="model.Model" ApplicationName="AppModule.AppModuleAM" DeployPlatform="LOCAL">
<AM-Pooling jbo.ampool.maxpoolsize="1" jbo.ampool.isuseexclusive="false"/>
<Database jbo.TypeMapEntries="OracleApps"/>
<Security AppModuleJndiName="AppModule.AppModuleAM"/>
<Custom JDBCDataSource="java:comp/env/jdbc/ADFTrainingDS"/>
</AppModuleConfig>
</AppModuleConfigBag>
</BC4JConfig>
Now on click of button I am calling a action listener to execute a operation binding which is executing a procedure but even though using system out i see code going in DynamicEnvoProvider and setting value when combo box value is getting changed ,but procedure is not executing in the modified db its still running on jdbc/ADFTRAINDS.
Can anyone help me figure it out whats problem here?
Regards,

Answer 1

Hi,
Jobinesh blog post comes with a sample, did you try and run this? If so, does it work? Note that if the sample works it makes it easier to find he problem as it allows narrowing down the problem area to your implementation. If the problem reproduces with Jobinesh's sample then its a clue that the product may have issues with dynamic JDBC credentials
Frank