ADF panel executes all queries in the application module.

Hi all,
I have created an ADF Panel, which allows the user to run a few simple queries against an Oracle database done using ADF view objects and ADF view links and ADF application module.
As I add more functionality meaning more available queries meaning more ADF views and ADF view links, running the Application Modules becomes slower.
Let’s say the application module AM1 is made of 30 different view links. And application module AM2 is made of another 30 view links.
Now let’s say that ADF Panel1 references 8 view links from AM1, but it appears that all 30 view links that make up Application Module AM1 are executed before returning the result sets of the 8 view links referenced in ADF Panel1. Let me also underline the fact that each view link in Application Module AM1 can be executed independently, so the question is how I can make Jdev not to run all 30 queries in view links in the Application Module AM1 when ADF Panel1 is executed, but just the 8 that are referenced in the ADF panel1.
I hope I made my question understood.
Your inputs are greatly appreciated.
Thanks.
Bobby A.

Hi,
if this is what you see then you should file a bug because certainly its not the way it is designed to work. Note that in JDeveloper 11g - you don't specify the release you are on - the iterators by default are set to refresh deferred. Only iterators that belong to a PageDef file are executed when the page loads (you can suppress this by setting a refresh condition). Other queries are not executed
Frank

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BoilerUp,
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Hi all,
I've been playing with JDeveloper9i for a little ovar a week only and have been trying to get access to a BC4J View Object in order to execute a runtime specific query on it, by passing 2 user input values to the object, and setting the WHERE clause by a call to the setWhereClause() method on the View Object. The only way i could come across to get hold of the View Object was to create an Application Object (in this case its called Bc4jModule) and then to use a call to a custom method in the Application Module Implementation which i created and set to be a Client Method.
The code is as follows:
In the Application Module (Bc4jModuleImpl)
public int authenticateUser(String strLogin, String strP_Word)
getUsersView().setWhereClause(" LOGIN='" + strLogin + "' AND P_WORD='" + strP_Word + "'");
System.out.println(getUsersView().getWhereClause());
getUsersView().executeQuery();
return getUsersView().getRowCount();
In the JClient panel (JButton action):
Bc4jModule app = (Bc4jModule)panelBinding.getApplicationModule();
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System.out.println("Number of rows queried = " + n);
I would like to know if this is the best way of doing a custom query on the Entity Object or is there some other way that i'm missing?

The best way would be to:
[list=1]
[*]Design a view object in JDeveloper which has bind variables for the parameters you need to pass in at runtime. For example, your WHERE clause for your view object would look like:
LOGIN = :0 and P_WORD = :1[*]Add an instance of that view object definition to your application module
[*]Write your custom AppModule method like this:
public boolean authenticateUser(String strLogin, String strP_Word)
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}[list]

How to get the application module instance in backing bean.

This is Ramesh, I am new to JDeveloper world.
In my current application I have change password screen which allows user to change there password.
Here this is a pop-up page. Here I don't have the view object and pagadef for this changepassword.jspx file.
My aim is to call the Application Module method which takes the user name, old password and new password.
In backing bean I am trying to call this method by using
MyProjAM obj = _binding.getDataControl().getApplicationModule(); //throw null pointer exception.
_binding is the object of DCBindingContainer.
( I have created the parameter called "binding" as my managed bean property and values as #{binding})
But the above line is throwing the NullPointerException.
Could you please help me to come out of this problem.
Thanks and Regards,
Ramesh Biradar.

If your page has no page definition, then #{bindings} will be null during the request for that page.
If you need your page to invoke a data control method when you press a button, the simplest (and declarative) way is publish your AM method on the AM's client interface, then drop the method as a button from the data control palette onto your page. You don't even need a backing bean to accomplish this.
That said, you can refer to a data control in a backing bean using the expression #{data.[i]YourAppModuleNameDataControl.dataProvider}
So, assuming you have a helper method like this:
public static Object EL(String expression) {
    FacesContext ctx = getFacesContext();
    Application app = ctx.getApplication();
    ValueBinding bind = app.createValueBinding(expression);
    return bind.getValue(ctx);
}and assuming that your application module is named SRService
and assuming that you have correctly nominated any Application Module custom methods as being available to clients by selecting them on the "Client Interface" panel of the application module editor, then in a backing bean you can acquire an instance.
Then, the ADF design time will have automatically generated you a custom AM client interface named SRService and you can reference that service interface in your backing bean by using code like this:
        SRService svc = (SRService)EL("#{data.SRService.dataProvider}");
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Java code common to the applications modules

I need help to generalise some methods and include them in project.
I have some Java methods and I need it to be able to include/calll these methods from different application modules.
I need it accessible to all app modules.
Is there any way to do it?

what we do is create a root application module to be the parent of all our app modules. edit that root app module and add your other app modules as nested app modules under the "Application Modules" section. then in your child app module java code you can initialize your root application module by using the getRootApplicationModule() method:
YourServiceImpl yourServ = (YourServiceImpl)getRootApplicationModule();
then you have access to all your methods in the master app module. however, to make sure you're accessing your app module in the desired hierarchy, you have to base your jhs app def file on your root app module or use your app module under the desired hierarchy in any of your custom adf pages.
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Help!! - Unable to use the Application Module Deployed as Corba Object in Oracle 8i

I have been able to successfully deploy an Application Module in Oracle 8i but i am un able to get a reference to the Application Module from the database the code used by me is -
package client;
import javax.naming.Context;
import javax.naming.InitialContext;
import java.util.Hashtable;
import oracle.jbo.*;
import org.omg.CORBA.*;
public class Corba8IClient{
Hashtable env = new Hashtable();
ApplicationModule appMod = null;
String theAMDefName = "test/jd/freshJBO.FreshJBOModule";
public Corba8IClient() {
System.out.println("Started...");
// Load the Application Module
try{
// Component deployed to Oracle8i CORBA Server.
// Set up the 8i environment
System.out.println("Setting up initial Context...");
env.put(Context.INITIAL_CONTEXT_FACTORY, JboContext.JBO_CONTEXT_FACTORY);
env.put(JboContext.DEPLOY_PLATFORM, JboContext.PLATFORM_ORACLE8I);
env.put(Context.SECURITY_PRINCIPAL, "jd");
env.put(Context.SECURITY_CREDENTIALS, "jd");
env.put(JboContext.HOST_NAME, "Dev51");
env.put(JboContext.CONNECTION_PORT, "2481");
env.put(JboContext.ORACLE_SID, "ORA8I");
// env.put(JboContext.APPLICATION_PATH, "test/jd/");
System.out.println("Getting initial Context.");
Context ic = new InitialContext(env);
System.out.println("Doing Lookup...");
ApplicationModuleHome home = (ApplicationModuleHome)ic.lookup(theAMDefName);
System.out.println("Calling create...");
// home
System.out.println("Home Class Name : "+home.getClass().getName());
oracle.jbo.client.remote.corba.aurora.AuroraApplicationModuleHome am = (oracle.jbo.client.remote.corba.aurora.AuroraApplicationModuleHome)home;
System.out.println("DefName "+am.getDefName());
appMod = home.create();
System.out.println("Setting up connetion from AppMod to database...");
appMod.getTransaction().connect("jdbc:oracle:thin:jd/jd@dev51:1521:ORA8I");
}catch(Exception e) {
e.printStackTrace();
System.out.println("AppMod full Name "+ appMod.getFullName());
public ApplicationModule getAppMod(){
return appMod;
public static void main(String args[]){
Corba8IClient c8c = new Corba8IClient();
after running the output is -
Started...
Setting up initial Context...
Getting initial Context.
Doing Lookup...
Diagnostics: Silencing all diagnostic output (use -Djbo.debugoutput=console to see it)
Calling create...
Home Class Name : oracle.jbo.client.remote.corba.aurora.AuroraApplicationModuleHome
DefName null
oracle.jbo.ApplicationModuleCreateException: JBO-25222: Unable to create application module.
at oracle.jbo.client.remote.corba.CORBAApplicationModuleHomeImpl.create(CORBAApplicationModuleHomeImpl.java:63)
at client.Corba8IClient.<init>(Corba8IClient.java:39)
at client.Corba8IClient.main(Corba8IClient.java:53)
java.lang.NullPointerException
at client.Corba8IClient.<init>(Corba8IClient.java:45)
at client.Corba8IClient.main(Corba8IClient.java:53)
Corba Object is deployed as -
ObjectName = /test/jd/freshJBOModule
Server Class = freshJBO.server.o8.FreshJBOModuleServerO8
Helper Class = oracle.jbo.common.remote.corba.RemoteApplicationModuleHomeHelper
The Application Module conatians an entity object and a view object for Dept Table in schema jd(Username -jd, Password -jd).

Moneesh,
I believe there is a problem with the way you set the variable theAMDefName. It should be:
String theAMDefName = freshJBO.FreshJBOModule";
Then you need to reinstate the line you commented out, to set the application path (but remove the trailing / from the path, as shown):
env.put(JboContext.APPLICATION_PATH, "test/jd");
If that doesn't work, and for future reference, I suggest testing your deployed application module from the Business Component Browser (aka the tester) before trying your hand-coded client. Start the tester, select Oracle8i as the middle tier server type, make sure the other information in the connect window is correct, then click Connect.
Good luck
Blaise

Problems with the Application Module Pool

Hello,
We have an Oracle ADF Application working in a production enviroment. The application module pool seems to work properly during the first days, but after a few days, the application module pool seems not to work properly. We start to get some errors like JBO-30003: the application pool failed to checkout an application module.
We have included in the application a DumpPoolStatistics servlet, and what we have observed is:
1. When the application is restarted in the server, the "total number of application modules in the pool" is equal to "maximum number of application modules in the pool".
2. Several days after, the "total number of application modules in the pool" starts to decrease.
We don't know why the "total number of application modules in the pool" starts to decrease, but we think this is the reason of the errors. In fact, "total number of application modules in the pool" is lower than the "jbo.ampool.minavailablesize" parameter value.
The management of the application module pool is not a task of the developer, so we don't undestand where is the problem.
We have configured the application module with the next parameters:
<jbo.ampool.initpoolsize>10</jbo.ampool.initpoolsize>
<jbo.ampool.maxpoolsize>100</jbo.ampool.maxpoolsize>
<jbo.ampool.minavailablesize>10</jbo.ampool.minavailablesize>
<jbo.recyclethreshold>15</jbo.recyclethreshold>
<jbo.ampool.maxinactiveage>600000</jbo.ampool.minavailablesize>
<jbo.ampool.monitorsleepinterval>600000</jbo.ampool.monitorsleepinterval>
<jbo.initpoolsize>15</jbo.initpoolsize>
<jbo.maxpoolsize>30</jbo.maxpoolsize>
<jbo.poolminavailablesize>15</jbo.poolminavailablesize>
<jbo.poolmaxavailablesize>25</jbo.poolmaxavailablesize>
<jbo.poolmonitorsleepinterval>30000</jbo.poolmonitorsleepinterval>
<jbo.poolmaxinactiveage>30000</jbo.poolmaxinactiveage>
<jbo.dofailover>true</jbo.dofailover>
<jbo.ampool.resetnontransactionalstate>true</jbo.ampool.resetnontransactionalstate>
<jbo.ampool.doampooling>true</jbo.ampool.doampooling>
We are working with JDeveloper 10.1.3.4.
Thanks in advance!

Sorry, you are right, the number of application modules created whe the application starts is given by the jbo.ampool.initpoolsize. But what it is sure is that the "total number of application modules in the pool" starts to decrease. The number of days is not always the same. But we have to restart the application occasionally.
I think the time parameters are ok, I would like for example 10 minutes for pool resoruce cleanup, and 10 minutes for considering an inactive AM instance in the pool as a candidate for removal during the next resource cleanup.
<jbo.ampool.monitorsleepinterval>600000</jbo.ampool.monitorsleepinterval> --> 10 minutes
<jbo.ampool.maxinactiveage>600000</jbo.ampool.minavailablesize> --> 10 minutes
Is this right?

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Hello,
Maybe and unusual question, but is there a way to stop the application module from connect to a DB? I know its purpose is to do so. But currently we are using ‘stub’ views and entities.
In the executequery and dodml we wrote our own code to access data from webservices.
We did this because we are also using JHeadStart which requires BC.
It all works fine, but the application module needs a valid connection to a DB, although it will never query anything there.
So is there a method which I can overwrite to make the application module think its connected to the DB but it actually isn’t?
A second problem is most likely its state table.
Anton

Example #96 on my blog does this. It might have some useful clues.

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I have some code running in the application module. I want to display error messages in the messages section of the screen if an error happens in my code.
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We have recently upgraded from JDeveloper 11.1.1.1 to 11.1.1.2.
In the "tearDown()" method in our Unit Tests, the Application Module is realeased using:
private ApplicationModule am;
Configuration.releaseRootApplicationModule(am, true);
Alter the upgrade, this produces the following error:
oracle.jbo.JboException: JBO-33025: Failed to release application module MapServiceGlobal. Cookie handle not found.
Please Help.
FYI - this is the code that is used to create the application module:
Hashtable env = new Hashtable(2);
env.put(JboContext.INITIAL_CONTEXT_FACTORY,JboContext.JBO_CONTEXT_FACTORY);
env.put(JboContext.DEPLOY_PLATFORM, JboContext.PLATFORM_LOCAL);
try
InitialContext ic = new InitialContext(env);
ApplicationModuleHome home = (ApplicationModuleHome)ic.lookup(rootAM);
am = home.create();
catch (NamingException nex)
/* Handle the error here if you don't find it */
throw new NamingException("Application Module naming exception " + rootAM + " : " + nex.getMessage());
/* Connect the AM to a database connection */
am.getTransaction().connect(jdbcConnectionURL);
* Set the bundled exception mode so that exceptions are thrown in the
* same way as when we're running in the web application.
am.getTransaction().setBundledExceptionMode(true);
Thanks,
-Spiro

Hi,
I used OCEP 10.3.0.0 and upgraded the wlevs30 domain to PS6(11.1.1.7.0). and it worked without such error.
My experience is:
1) in OCEP 10.3.0.0 it needs not to add the security groups in atnstore.txt
2) you need to add <scratch-directory/> for Jetty in server's config.xml otherwise you will see the visualizer takes a long time to get up on Windows
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List of all queries in the system

Hi all
<b>I want to get a list of all QUERIES in my BW system and the details of the DATA TARGETS (cube or ODS) on which they are made.</b>
Can i get it from any TABLE or TRANSACTION? or will i have to go to each query ( grouped by INFOAREA) to do the same. This i felt will be very tedious. Please advise.
Regards,
Pradyut.

Hi Pradyut,
Use this table instead - RSZCOMPIC. Give the selection parameter as cube/ods technical name and the version as active.
This would give the list of technical name of the queries for a Cube/ODS. To get the description of the query use the table RSZCOMPDIR -> give the technical name of the query as input parameter and get the desription. The description is stores in the COMPID field.
Hope this helps.
Bye
Dinesh
(Do not forget to assign points!!)

How to select all files from the application server.

Hi all,
I have a requirement to select all files with the same file format I.e i have created no of files with same name but different time stamps addition , now i want to select all the fiels and read the data into an internal table and sort them on the user requirement, I am using FM -
/SAPDMC/LSM_F4_SERVER_FILE to get single file name, i should also give the option on the selection screen for the user to select the file range I.e form which to which the sorting should be done.
could anybody suggest me the function module which selects all the file names .
Regards,
Sre.
Edited by: Alvaro Tejada Galindo on Mar 10, 2008 4:49 PM

Hi,
PARAMETER: p_fdir type pfeflnamel DEFAULT '/usr/sap/tmp'.
data: begin of it_filedir occurs 10.
include structure salfldir.
data: end of it_filedir.
*START-OF-SELECTION
START-OF-SELECTION.
Get Current Directory Listing for OUT Dir
call function 'RZL_READ_DIR_LOCAL'
exporting
name = p_fdir
tables
file_tbl = it_filedir.
List of files are contained within table it_filedir
loop at it_filedir.
write: / it_filedir-NAME.
endloop.
Regards,
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Jdeveloper 10g Failed to chekcout the application module connection problem

Hello friends,
I am using trying to simulate the demo of "Oracle Application Development Framework (Oracle ADF) declarative and visual J2EE development" given on the same site.
To do the same I just downloaded the Jdeveloper 10g and followed the steps given in the application.
While running the page1DataAction in StrutsPageFlow I got the following exception on my internet explorer.
500 Internal Server Error
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     at oracle.jbo.JboException.<init>(JboException.java:343)
     at oracle.jbo.common.ampool.ApplicationPoolImpl.doCheckout(ApplicationPoolImpl.java:1759)
     at oracle.jbo.common.ampool.ApplicationPoolImpl.useApplicationModule(ApplicationPoolImpl.java:2488)
     at oracle.jbo.common.ampool.SessionCookieImpl.useApplicationModule(SessionCookieImpl.java:434)
     at oracle.jbo.http.HttpSessionCookieImpl.useApplicationModule(HttpSessionCookieImpl.java:241)
     at oracle.jbo.common.ampool.SessionCookieImpl.useApplicationModule(SessionCookieImpl.java:405)
     at oracle.jbo.common.ws.WSApplicationModuleImpl.createWorkerApplicationModule(WSApplicationModuleImpl.java:1606)
     at oracle.jbo.common.ws.WSApplicationModuleImpl.getCustomApplicationModule(WSApplicationModuleImpl.java:1584)
     at oracle.adf.model.bc4j.DCJboDataControl.setDataProvider(DCJboDataControl.java:781)
     at oracle.adf.model.bc4j.DCJboDataControl.<init>(DCJboDataControl.java:140)
     at oracle.jbo.uicli.binding.JUApplication.<init>(JUApplication.java:94)
     at oracle.jbo.uicli.binding.JUApplication.<init>(JUApplication.java:85)
     at oracle.adf.model.bc4j.DataControlFactoryImpl.createSession(DataControlFactoryImpl.java:249)
     at oracle.adf.model.bc4j.DataControlFactoryImpl.createSession(DataControlFactoryImpl.java:93)
     at oracle.jbo.uicli.mom.JUMetaObjectManager.loadCpx(JUMetaObjectManager.java:543)
     at oracle.adf.model.servlet.ADFBindingFilter.initializeBindingContext(ADFBindingFilter.java:228)
     at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:84)
     at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:610)
     at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:317)
     at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:784)
     at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].server.http.HttpRequestHandler.run(HttpRequestHandler.java:270)
     at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].server.http.HttpRequestHandler.run(HttpRequestHandler.java:112)
     at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:186)
     at java.lang.Thread.run(Thread.java:536)
## Detail 0 ##
oracle.jbo.JboException: JBO-29000: Unexpected exception caught: java.lang.ClassCastException, msg=sun.jdbc.odbc.JdbcOdbcConnection
     at oracle.jbo.JboException.<init>(JboException.java:343)
     at oracle.jbo.pool.ResourcePool.createResource(ResourcePool.java:524)
     at oracle.jbo.common.ampool.ApplicationPoolImpl.doCheckout(ApplicationPoolImpl.java:1646)
     at oracle.jbo.common.ampool.ApplicationPoolImpl.useApplicationModule(ApplicationPoolImpl.java:2488)
     at oracle.jbo.common.ampool.SessionCookieImpl.useApplicationModule(SessionCookieImpl.java:434)
     at oracle.jbo.http.HttpSessionCookieImpl.useApplicationModule(HttpSessionCookieImpl.java:241)
     at oracle.jbo.common.ampool.SessionCookieImpl.useApplicationModule(SessionCookieImpl.java:405)
     at oracle.jbo.common.ws.WSApplicationModuleImpl.createWorkerApplicationModule(WSApplicationModuleImpl.java:1606)
     at oracle.jbo.common.ws.WSApplicationModuleImpl.getCustomApplicationModule(WSApplicationModuleImpl.java:1584)
     at oracle.adf.model.bc4j.DCJboDataControl.setDataProvider(DCJboDataControl.java:781)
     at oracle.adf.model.bc4j.DCJboDataControl.<init>(DCJboDataControl.java:140)
     at oracle.jbo.uicli.binding.JUApplication.<init>(JUApplication.java:94)
     at oracle.jbo.uicli.binding.JUApplication.<init>(JUApplication.java:85)
     at oracle.adf.model.bc4j.DataControlFactoryImpl.createSession(DataControlFactoryImpl.java:249)
     at oracle.adf.model.bc4j.DataControlFactoryImpl.createSession(DataControlFactoryImpl.java:93)
     at oracle.jbo.uicli.mom.JUMetaObjectManager.loadCpx(JUMetaObjectManager.java:543)
     at oracle.adf.model.servlet.ADFBindingFilter.initializeBindingContext(ADFBindingFilter.java:228)
     at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:84)
     at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:610)
     at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:317)
     at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:784)
     at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].server.http.HttpRequestHandler.run(HttpRequestHandler.java:270)
     at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].server.http.HttpRequestHandler.run(HttpRequestHandler.java:112)
     at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:186)
     at java.lang.Thread.run(Thread.java:536)
## Detail 0 ##
java.lang.ClassCastException: sun.jdbc.odbc.JdbcOdbcConnection
     at oracle.jbo.server.OracleSQLBuilderImpl.isConnectionAlive(OracleSQLBuilderImpl.java:3168)
     at oracle.jbo.server.ConnectionPool.getConnectionInternal(ConnectionPool.java:90)
     at oracle.jbo.server.ConnectionPool.getConnection(ConnectionPool.java:65)
     at oracle.jbo.server.ConnectionPoolManagerImpl.getConnection(ConnectionPoolManagerImpl.java:56)
     at oracle.jbo.server.DBTransactionImpl.establishNewConnection(DBTransactionImpl.java:831)
     at oracle.jbo.server.DBTransactionImpl.initTransaction(DBTransactionImpl.java:1067)
     at oracle.jbo.server.DBTransactionImpl.initTxn(DBTransactionImpl.java:5286)
     at oracle.jbo.server.DBTransactionImpl2.connect(DBTransactionImpl2.java:116)
     at oracle.jbo.common.ampool.DefaultConnectionStrategy.connect(DefaultConnectionStrategy.java:288)
     at oracle.jbo.common.ampool.ApplicationPoolImpl.connect(ApplicationPoolImpl.java:3515)
     at oracle.jbo.common.ampool.ApplicationPoolImpl.instantiateResource(ApplicationPoolImpl.java:2151)
     at oracle.jbo.pool.ResourcePool.createResource(ResourcePool.java:515)
     at oracle.jbo.common.ampool.ApplicationPoolImpl.doCheckout(ApplicationPoolImpl.java:1646)
     at oracle.jbo.common.ampool.ApplicationPoolImpl.useApplicationModule(ApplicationPoolImpl.java:2488)
     at oracle.jbo.common.ampool.SessionCookieImpl.useApplicationModule(SessionCookieImpl.java:434)
     at oracle.jbo.http.HttpSessionCookieImpl.useApplicationModule(HttpSessionCookieImpl.java:241)
     at oracle.jbo.common.ampool.SessionCookieImpl.useApplicationModule(SessionCookieImpl.java:405)
     at oracle.jbo.common.ws.WSApplicationModuleImpl.createWorkerApplicationModule(WSApplicationModuleImpl.java:1606)
     at oracle.jbo.common.ws.WSApplicationModuleImpl.getCustomApplicationModule(WSApplicationModuleImpl.java:1584)
     at oracle.adf.model.bc4j.DCJboDataControl.setDataProvider(DCJboDataControl.java:781)
     at oracle.adf.model.bc4j.DCJboDataControl.<init>(DCJboDataControl.java:140)
     at oracle.jbo.uicli.binding.JUApplication.<init>(JUApplication.java:94)
     at oracle.jbo.uicli.binding.JUApplication.<init>(JUApplication.java:85)
     at oracle.adf.model.bc4j.DataControlFactoryImpl.createSession(DataControlFactoryImpl.java:249)
     at oracle.adf.model.bc4j.DataControlFactoryImpl.createSession(DataControlFactoryImpl.java:93)
     at oracle.jbo.uicli.mom.JUMetaObjectManager.loadCpx(JUMetaObjectManager.java:543)
     at oracle.adf.model.servlet.ADFBindingFilter.initializeBindingContext(ADFBindingFilter.java:228)
     at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:84)
     at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:610)
     at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:317)
     at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:784)
     at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].server.http.HttpRequestHandler.run(HttpRequestHandler.java:270)
     at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].server.http.HttpRequestHandler.run(HttpRequestHandler.java:112)
     at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:186)
     at java.lang.Thread.run(Thread.java:536)
Please help me.As i am new user please tell me Is there any path to be set.
ThankYou.

CAN ANYONE HELP ME.

When the application module starts the trans?

Hi,
For ADF application module, when does it start a trans?Is it the case the AM method(even read only method) exposed to view layer, then the trans starts automatically when the page is loaded? Or when getDBTransaction() is called? or even latter when actual update or some specific method is called from the trans? Just wondering whether a commit/rollback is expected when even an exposed method is called by view layer even it is readonly.
Hui

Thx, Tim.
We are use optimistic in the AMs. We have some AMs just do data query. But there is VPD on one of the table, query on the table will trigger the VPD table updates from database, and if db side detects the parent query sql has transaction associated, the vpd related update will not be committed and expects the parent trans will be commit/rollback But if the AM is cached, and no explicit commit/rolback was issued. Will the underlying VPD updates stay there not commit/rollback
Hui

ADF panel executes all queries in the application module.

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