Application Module and RAC

Hi all,
I've read in Oracle JDBC Developers Guide that when the Fast Connection Failover is being used in application, the application must treat the error message SQLException, ORA-17008, Closed Connection and :
1. retry the connection request. This is essential, because the old connection is no
longer open.
2. Replay the transaction. All work done before the connection was closed has been
lost.
When i'm utilizing an ADF Application, the Application Module handle this error message and do 1 and 2 actions automatically?
Thanks.

all my's connections uses a single identity to log in to the database
In the documentation of oracle this the following note
Note:
* Global application context is not available in Real Application Clusters.
http://download-east.oracle.com/docs/cd/B19306_01/network.102/b14266/apdvpoli.htm#sthref2296

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Issue in Application Module and Enterprise Integration for SAP applications

Hi,
When I enabled the Application Module and Enterprise Integration for SAP applications Version 2.60 Patch 2 I am getting error in defect entity and Application Module. Does any one face this issue? Please let me know the solution.
QC details: QC 11.0 with patch 7
I followed the steps given in ALM addin page to install the adapters
Attached Screen shots of the Error

Hi
If you are wanting to know how to configure ESSO to be used to logon to SAP applications then there is a guide in the helpfile of the admin console. Simply do a search for SAP.
In short ESSO-LM comes with a SAP helper object which needs to be selected on install. To enable the ESSO SAP helper to interact with SAP, the SAP server and the SAPGUI client need to be configured. The details for this are in the helpfile. If you have multiple SAP systems launched from the SAPGUI then this is the best method because it means ESSO can distinguish between the different SAP systems through matching screens
If you have only one SAP system and you do not want to configure the SAP server then you could use send keys and not use the SAP helper object at all.
Hope this helps

Nested Application Module and child AM remove

Hi,
I have 2 pages. Page A and Page B.
1. Page A has root am as RootAM and child am as PageAAM1(oracle.apps.xxxx.component1.server.PageAAM).
2. page B has root am as RootAM and child am as PageBAM1(oracle.apps.xxxx.component2.server.PageBAM).
Both the pages have the same AM hierarchy. And child regions have both the AM Defination and instance specified.
Now the question:
I first come to page A. Do some transactions on this page. Now here i have a button to navigate to Page B. Click on button. Navigate to Page B. Here on Page B do some other tranactions. I have a return button on Page B. When i click on Return button, I release the PageBAM1 usiing the method am.remove(). ANd then formard immediately to PageA.
At this point of time, I am getting an error soemthing like this:
oracle.apps.fnd.framework.OAException: oracle.jbo.NoObjException: JBO-25003: Object RootAM.PageBAM1 of type ApplicationModule not found
Does any one has any idea. What might be the cause and solutiion.
Thanks,
Anand

am.remove() removes the object from the rootApplicationModule, so when you navigate to the page again
the OAF will try to use the childAM and you will get this error
because you have already removed it in your previous call.
It is recommend to use am.remove() only for the Application modules create through programs.
Your really obsessed with releasing memory occupied by child AM. And you don't have any logical reasons for that.
Remove the AM only if you want to rollback or commit the transaction.
otherwise don't remove the child AM at all.
--Prasanna

Database sessions, Application Modules and Pools

Hi,
I have an ADF 10.1.3 application (ADF Faces on ADF BC) that uses JAAS to authenticate it's users. After the user has logged in I would like my session_user_info managed bean to query the database and retrieve all the user's details, for access throughout the user's session. Initially I wrote the following code to achieve this:
      ApplicationModule am = Configuration.createRootApplicationModule(applicationModuleName, applicationConfigName);
      ViewObject vo = am.findViewObject("CurrentUserView1") ;
      vo.setNamedWhereClauseParam("v_userName",userName);
      vo.executeQuery();
      if(vo.getRowCount() <= 0)
        user = null ;
      else
        user = (CurrentUserViewRowImpl) vo.first();
      Configuration.releaseRootApplicationModule(am, true); This works fine BUT because it's creating a new root ApplicationModule each time I end up with an excessive number of database connections after a very short space of time (the call to Configuration.releaseRootApplicationModule does not seem to be releasing the database connection, even though the application module is released). I also don't like this as it feels like I'm "breaking" the framework by making a direct call to the model layer.
So the next thing I wanted to try was creating a DataControl (by dragging my CurrentUserView1 on to a jspx page, then deleting it to preserve the bindings) and make a call to that using something like this:
        /**** TODO GET BINDING TO CurrentUserView1 ******/
        OperationBinding operationBinding =
            bindings.getOperationBinding("ExecuteWithParams");
        JUCtrlAttrsBinding vUsername =
            (JUCtrlAttrsBinding)bindings.findNamedObject("v_userName");
        statusCode.setAttribute("v_userName", username);
        Object result = operationBinding.execute();
        if (operationBinding.getErrors().isEmpty()) {
           /***** TODO Cast this result object in to something useful *****/
            setUser(result)
        }But as you can see I still don't completely understand what I have to do here (and yes I have trawled the various guides and documentation - but I can't work out exactly what applies to me as this isn't a backing bean).
If any of you Aces out there can give me some pointers it would be MUCH appreciated as I've beat my head against this for a week now!!
Dave
Edited by: Short Dave on Dec 1, 2008 2:52 PM

John,
It's been 2 months since I asked this question and in that time I have tried innumerable ways of getting my application and database pools to behave in such a way that doesn't end up filling my database with unclosed sessions. The situation I'd ideally like to achieve is this:
Application Modules
A pool of application modules minimum 5 maximum 150 with a "working set" of about 25 (the jbo.recyclethreshold setting)
For application modules to timeout if they are inactive for > 120 seconds (so if somebody has left their browser open in the background I don't want them hogging my AMs)
Database Connections +(I am using a JDBC data source to allow multiple applications to reuse my connection pool settings)+
A pool of database connections minimum 5 maximum 150
If a connection is inactive for > 300 seconds for that connection to be closed (i.e. if an AM has been returned to the pool, but is not re-used within 5 minutes then I'd like the connection closed)
Obviously, for the purposes of testing, I don't want to try and manage 150 browser sessions to see if this setup works, so I have been trying to create a scaled-down version of my requirements:
Application Modules
A pool of application modules minimum 1 maximum 5 with a "working set" of 1 (the jbo.recyclethreshold setting)
For application modules to timeout if they are inactive for > 30 seconds
Database Connections
A pool of database connections minimum 1 maximum 5
If a connection is inactive for > 60 seconds for that connection to be closed
My problem is that, despite all the API's, the ADF for 4GL guide, forum entries and Steve Muench's guide to AM Pooling I still can't get this relatively simple example to work.
My bc4j.xcfg file looks like (assume all other settings are as default):
         <jbo.recyclethreshold>1</jbo.recyclethreshold>
         <jbo.ampool.maxavailablesize>5</jbo.ampool.maxavailablesize>
         <jbo.ampool.maxinactiveage>30000</jbo.ampool.maxinactiveage>
         <jbo.ampool.minavailablesize>1</jbo.ampool.minavailablesize>
         <ApplicationName>gpl.model.PreUserLoginModule</ApplicationName>
         <jbo.ampool.monitorsleepinterval>30000</jbo.ampool.monitorsleepinterval>My data-sources.xml file has the following entries for the connection used by that application module (assume all other settings are as default):
<connection-pool name="jdev-connection-pool-gslportal_at_ppmsdb"
                   disable-server-connection-pooling="false"
                   validate-connection="false" inactivity-timeout="60"
                   max-connections="5" min-connections="1"
                   property-check-interval="30"
                   used-connection-wait-timeout="30">With this configuration I can open a maximum of 5 browsers and each one connects successfully. On opening the 6th I get an exception because no more connections are available (as expected). My problem is that if I wait for 5 minutes I'd expect that
a) 4 of the inactive application modules should be released (with one left available as per the min setting)
b) The database connections of the 4 inactive application modules should be released as per the "inactivity" and "used-connection-wait" timeouts on the data-source
c) I'd now expect the 6th browser to be able to connect because of the "freed up" resources
From what I can make out none of these things happens. Even if I close the original 5 browsers, the 6th still cannot connect.
I have noticed that if I set the "time-to-live-timeout" for the datasource then this will close the connection after the given period of time, but regardless of whether or not the connection was in use and in doing so renders the application module held in the pool as useless. (So if any of my original 5 sessions attempt to re-use the application module with the closed database connection, a "Closed Connection" SQLException is raised).
I do appreciate this topic has been given LOTS of forum discussion already - but I really have done my research and am still none the wiser. Any help or guidance will be much appreciated.
Kind Regards
Dave

(IMP)application module and DB connection issue

Hi,
In my BC4J application, Application module is not releasing DB connection after the execution of the JSP page. It usually takes approx 3500-4000sec. to release it. On what parameters this time is dependent??
I am using data-source to connect to DB. Application Module configurations parameters are set with default values.
If i select "Disconnect Application Module Upon Release" from the configuration of Application module, it releases DBconnection at the end of http Request. Is it a proper solution to the issue ? any performance related issues with it?
My JSP code's basic structure is
try
<jbo:ApplicationModule id="<AM ID>" definition="<Fully qualified AM classname>" releasemode="Stateless/stateFul" />
// application code
catch(Exception e)
// Code to take necessary action if exception occurs
finally
<jbo:ReleasePageResources appid="<AM ID>" releasemode="Stateless/StateFul"/>
Please guide me on this.
Thanks in advance,
Devang

Hi john,
Thanks for your reply... in other way can i restrict the number of connections created for the application module By selecting the Disconnect Application Module Upon Release in application module configuration.
If i select that check box in Appmodule-->configurations->Edit->Pooling and Scalability means, while loading my screen number of connections are increased after completion of loading a screen immediatly connections also got reduced. if i select this check box whether it will give any other problems.
Here am using the uishell dynamic tab after opening more number of tabs am getting connection pool error.not allways.. thats why am trying to restrict the no.of connections opening.
please can you provide some info regarding this
Reg,
Brahma B

(IMP)Application module and database connection

Hi,
How application module pooling and database connection pooling is working ?
Currently i m facing a problem like if i am creating 10 browser session then it doesn't mean that i'll have only 10 db sessions. While closing the browser session of application module time out respective db session is not removed.
In this case, invalid db session are created in bulk which is crashing database sometime. We have writter script to kill those session periodically but in this case if application module is accessing such dbconnection then we are getting session killed error or not logged in error.
To over come we need to bounce the server (middle tier).
Is there any proper way to solve this or am i doing something wrong ?
Please let me know if you need any more details.
Thanks in advance
Devang

Thanks for your prompt reply Ricky.
I just found out that in some of the JSP pages in application
<jbo:ReleasePageResources/> is not written. Should this problem arise because of this?
could you please tell me how can I release page resources in UIX pages ?
Datasources.xml file content
<data-source class="com.evermind.sql.DriverManagerDataSource"
name="AITDS"
location="jdbc/AITCoreDS"
pooled-location="jdbc/pooled/AITPDS"
xa-location="jdbc/xa/AITXADS"
ejb-location="jdbc/AITDS"
connection-driver="oracle.jdbc.driver.OracleDriver"
username=<USERNAME>
password=<PASSWORD>
url=<URL>
inactivity-timeout="30"
/>
bc4j.xcfg file
<BC4JConfig>
<AppModuleConfigBag>
<AppModuleConfig name="GsaServerModuleLocal">
<DeployPlatform>LOCAL</DeployPlatform>
<JDBCDataSource>jdbc/AITCoreDS</JDBCDataSource>
<jbo.project>gsa</jbo.project>
<AppModuleJndiName>oracle.appsit.gsa.server.GsaServerModule</AppModuleJndiName>
<java.naming.factory.initial>oracle.jbo.common.JboInitialContextFactory</java.naming.factory.initial>
<ApplicationName>oracle.appsit.gsa.server.GsaServerModule</ApplicationName>
</AppModuleConfig>
</AppModuleConfigBag>
</BC4JConfig>
Let me know if you need any more detail.
Thanks in advance
Devang

Problem with application modules and switching from 2 tier to 3 tier mode

Hello,
I've got an application in 2 tier mode. Now I wanted to switch to 3 tier mode but get a class cast exception. It has turned out, that panelBinding.getApplication().getApplicationModule().findApplicationModule returns in 2 tier mode <ModuleName>Impl and in 3 tier mode oracle.jbo.client.remote.ApplicationModuleImpl. But searching for modul name with panelBinding.getApplication().getApplicationModule().getApplicationModuleNames() returns the right in names in 2 tier and in 3 tier mode. Does anybody know a way to access <ModulName>Impl in 3 tier mode?

This is the reason that the BC4J project will create an <appmodulename>AM interface and a <appmodulename>AMClient Implementation that you include on the client side if you expose any methods in your app module. You should access them by casting it to the interface, NOT the appModuleImpl class. If you stick to using the interface, then you should be fine.
So to keep your implementation flexible, you should do this on the client to access your custom methods on your app module:
The BC4J project should generate the following classes:
AppModule Name = MyCustomAM.xml
AppModule Implementation = MyCustomAMImpl.java
Custom AppModule Interface = /common/MyCustomAM.java
Custom clientside AppModule Implementation = /client/MyCustomAMClient.java
On the client, do the following:
import my.bc4j.model.package.common.MyCustomAM;
// Call custom method on App module
MyCustomAM am = (MyCustomAM) panelBinding.getDataControl().getApplicationModule();
am.myCustomMethod(someParams);Hope this helps.
Erik

Oracle Application eWay and RAC

Hi,
We have an Oracle 12 installation using RAC architecture, and we use JCAPS 6 RU1, and the Oracle Applicaiton eWay. Going through the Stored Procedure OTD wizard, NetBeans only allows me to specify a SID, which I can use to point to one of the nodes, and see the SP and generate the OTD. But I get an error at runtime where JCAPS does not recognise the packagename.procedurename. Our suspicion is that by using the SID we're forcing JCAPS to go to a single node to look for the SP name and it is not able to resolve it, so we need to use the service_name.
Question: Is there a way I can speficy service_name to the OTD wizard rather than a SID?
Amir.

Based on the connection string I saw in the OWBSYS tables...where they were are all of the form host:port:service_name....I'd say no...

Is it possible to export and import jsf page and application module?

Hi,
I want to export a application module and then import it to another application,so deos jsf pages.If I can do this ,then my team could do the diffent work at the same time.one group response for data model then commit as application module,one group for page create and edit and so on .Who has any good idea?
Thanks advance
lixinzhu
2007/09/19

hi,frank
thank you.
You know a page include a .jspx file,a page definition file and depend faces-config.xml,faces-config.oxd_faces and other I don't know information,so if i only put the first two file into cvs,but how can i get other information in the last two file?When I get the first two file and needed information in the other file,how can i merge these into new project and let jdeveloper "reconize it"?Applicaion is more complex,it not only depend its self java class,xml and many entity object and view object,how to handle the "export" and "import" process?Just like oracle form,only a fmb is enough,database object only need to "put into database","export" and "import" are very simple,so i need jdeveloper to supply these "import" and "export" function.I'm not familar with cvs,does it can know object dependency like application module?if it can,how to let jdev "reconize" imported in object?
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DataBindings and Application Module Bean

Hallo everybody,
I am working on JDev 10.1.3.4 and Oracle Application Server 10.1.3.4.
I developed an 'application module' and I maked it as remotable using 'EJB Session Bean' option;
then I deployed it on the AS.
I know how to call remote application module by code in a JClient application ([thanks to a metalink note|https://metalink2.oracle.com/metalink/plsql/f?p=130:14:6076423513290714654::::p14_database_id,p14_docid,p14_show_header,p14_show_help,p14_black_frame,p14_font:NOT,309753.1,1,1,1,helvetica|thanks to a metailk note]):
bq. JUApplication app = new JUApplication(TestClient.getAppModule()); \\ app.setClientApp(DCDataControl.JCLIENT); \\ + app.getApplicationModule(+)
I would like to use remote application module function by DataBindings and %PageDef.
is it possible? how can I do this?
best regards
Edited by: user567554 on Dec 17, 2008 5:44 PM

Hi Frank,
thank you for reply.
Could you make an example how to configure my datacontrol for a remote Application Module Connection?
I'm able to connect to a remote AM deployed to Local Embedded OC4J, but I'm not able to connect to to a remote AM deployed in a remote AS
I think need change DataControl Configuration Attribute with the appropiate AM Configuration. Probably my AM Configuration is wrong:
<AppModuleConfig name="AppModuleEmbeddedASTest2">
<DeployPlatform>EjbIas</DeployPlatform>
<java.naming.security.principal>oc4jadmin</java.naming.security.principal>
<java.naming.security.credentials>*ASpwd*</java.naming.security.credentials>
<jbo.internal.embedded>true</jbo.internal.embedded>
<JDBCDataSource>jdbc/+myConnDS+</JDBCDataSource>
<AppModuleJndiName>AppModuleBean</AppModuleJndiName>
<HostName>*AS-IPAddr*</HostName>
<ApplicationPath>+ejbAM (My Application Name)+ </ApplicationPath>
<java.naming.security.authentication>simple</java.naming.security.authentication>
<ApplicationName>model.AppModule</ApplicationName>
<ConnectionPort>*+23791 (found in $ORACLE_HOME/j2ee/myTests//config/rmi.xml)+* </ConnectionPort>
<jbo.server.internal_connection>jdbc/myConnCoreDS</jbo.server.internal_connection>
</AppModuleConfig>

How to configure Application module pooling?

I want to know wheather bc4j container itself manages Application module pooling if yes then please tell me is there any file to set parameters for congiguration like one which we have for apache web server.
If no then please let me know how to create applicatiom module pooling.
Thanks in advance.

Application module pooling is configurable through an application module configuration. In order to edit an application module configuration you may right click an application module and select Configurations...
The BC4J data web beans and the BC4J JSP datatags are both application pool clients. The BC4J documentation includes descriptions of the application pool properties. The documentation also includes a code sample which illustrates how to write your own pool client.

JAAS Authorization - Application Module

I created a project based on the BC4J technology. The application module is configured for using the security : jbo.security.enforce=Must. This application module is also configured to deploy the user/password.
When I used this application through a web application, I don't meet any problem.
If I create a POJO class in the same project as BC4J in which I instantiate an instance in the application module pool, I receive the following message :
oracle.jbo.JboException: JBO-29000: Unexpected exception caught: oracle.jbo.JboException, msg=JBO-33021: Failed authenticate user null.
The java class in charge of instantiating the application module pool and get an instance of it works without any problem as soon as the security is not implemented.
Hereafter you can find the method used :
public ApplicationModule getApplicationModule()
try{
PoolMgr poolMgr = PoolMgr.getInstance();
this.lg_ApplPool = poolMgr.findPool( this.lg_configPackage + "." + this.lg_configName, // name of the pool
this.lg_configPackage, // name of the package
this.lg_configName, // name of the configuration
null);
// SessionCookie Creation
String timeStamp = (new java.util.Date()).toString();
// for web application, replace timeStamp by ip address of the client
this.lg_Cookie = lg_ApplPool.createSessionCookie(this.lg_applicationId,timeStamp,null);
CordaEnvInfoProvider lEnvInfoProvider = new CordaEnvInfoProvider ("xxx","xxx");
// this.lg_Cookie = lg_ApplPool.createSessionCookie(this.lg_applicationId,timeStamp,null);
this.lg_Cookie.setEnvInfoProvider(lEnvInfoProvider);
ApplicationModule lAM = this.lg_Cookie.useApplicationModule();
return lAM;
catch(Exception e)
System.out.println("_CrdAppModulePoolMgr - exception : " + e.getMessage());
e.printStackTrace();
return null;
After Having search quite a long time to find a solution, I have no more idea. The only thing I see now is to forget about Jaas if the application module has not to be used by a Java client not being a JClient (Swing) or a Web application.
Could you let me know if
1. jaas works with java client not being Swing or web application
2. if so, could you give me more information about how to work with BC4J application module and security enforce to Must ?
N.B.
POJO Client :
public class TestAppModulePoolMgr
private ApplicationModule lg_Am = null;
private CrdAppModulePoolMgr lgCrdAppModulePoolMgr = null;
private ApplicationPool lg_ApplPool = null;
private SessionCookie lg_Cookie = null;
public TestAppModulePoolMgr()
this.lg_CrdAppModulePoolMgr = _CrdAppModulePoolMgr.getCrdAppModulePoolMgr();
this.lg_CrdAppModulePoolMgr.setApplicationId("CrdGenerationAppModuleId");
this.lg_CrdAppModulePoolMgr.setConfigName("_CrdGenerationAppModuleLocal");
this.lg_CrdAppModulePoolMgr.setConfigPackage("CORDA_BSV");
this.lg_Am = lg_CrdAppModulePoolMgr.getApplicationModule();
this.lg_ApplPool = lg_CrdAppModulePoolMgr.getApplicationPool();
this.lg_Cookie = lg_CrdAppModulePoolMgr.getApplicationSessionCookie();
* @param args
public static void main(String[] args)
TestAppModulePoolMgr testAppModulePoolMgr = new TestAppModulePoolMgr();
}

Thank you.
I use SSO authentication to test my application so have no users defined.
Can I use the test-all user? If so, what is the password?

Nested Application Module - commit behavior

Guys,
I have ADF BC in the following hierarchial manner.
AM1
-VO1
-VO2
-AM2 (nested AM)
Assume that there are pending transactions on both AM1 and AM2.
what is the behaviour for the follwing?
Q1 . Issuing commit on AM1, will it commit AM2 also?
Q2 . Issuing commit on AM2, will it alone commit?
Edited by: Dev on Apr 19, 2011 12:00 PM

ADF distinguish between root application module and nested application modules. A root app module has no parent whereas an nested app module has a parent. A root app module holds the transaction (and only the root app module). Nested app module share the transaction of the root app module (they are nested in).
So Q1: yes and Q2: no.
Read 9.4.2 here http://download.oracle.com/docs/cd/E17904_01/web.1111/b31974/bcservices.htm#sm0229 fro more info.
Timo

Single session for all Application Modules

Hello,
I've got an application that has several Application Modules. All these modules need some data that are set from time to time. I've written some code that calls getSession().getUserData().put("myData",myData). After this method was called in another Application Module i want to retrieve myData with getSession().getUserData().get("myData"). But the result depends if I use 2-tier or 3-tier. In 2-tie I get myData while in 3-tier I get null. My question is:
Is there a Session object or any other data instance that could be accessed from all Application Modules for on application instance.
E.g. I've got two user (A,B) who start my application. Through using my app several instance of Application Modules are created. All Application Modules that are created for the instance of User A should be able to share his user name and some other dynamic data while the Application Modules created for B should have no access to that data.
Doe anybody know if static data of an Application Module are a possible solution?
regards
Joerg

Hi Joerg,
I am not 100% sure what you are trying to achieve, and with which version of JDeveloper/ ADF, technologies (JSP, Swing), etc, but I can tell you that I have been experimenting with single session accounts myself within a rich-client Swing environment, as I have experienced Oracle DBA guys who want to control user authentication via Oracle accounts (I have achieved this via the JCLoginDialog mechanism, and a bit of a hack)... Frank Nemphius (sp?) posted something about a white paper coming out on a related subject but I don't know where he is with that.
Anyway, I managed to do it in a prototype by nesting several application modules within a Root Application Module that was essentially simply a Container for the other application modules. Using this mechanism I was able to bind my root application module to any panel I wanted and it would inherit the roots Session.
ie. I used many application modules and it only used one Oracle Session.
However, my reservations -
1) This solution was not tested robustly!
2) I doubt this would be ideal for a distributed app with thousands of users - My solution is for a very complex app, with a limited number of users.
Finally, I cannot confirm this is a great solution - I can only tell you it worked in my prototype, and I am currently awaiting the ADF source - when my company and Oracle can decide what level of support we currently have and need!?!? - what exactly does being an "Oracle partner" mean??? Its all very boring and un-interesting to a Java person like me... ;-)
Once I have the source I will look at how it actually works and perhaps be able to answer questions like this more definitively. Hmm - I wonder if I could get the Oracle JDBC driver source too?? .... Is it written in C or C++?? I know them too... ;-)
Cheers........Dean

Non-void return type for Application Module Clients Interface

Hello, can anyone guide me on how will I solve my problem.
first of all, I'm using JDeveloper 10.1.3, I use JSF, ADF Faces, ADF Model, ADF Business Components.
I made a web page that has a Transactional Capabilities, all is going smoothly, all data's can be saved to oracle database. I created a Custom Method in my Application Module and can be used in Clients Interface, that method is for saving data's to database.
My problem is I dont know how to create a custom method that returns a value in my Application Module. Which means if I set it to non-void return type, it is not visible to Client Interface. If you're going to ask me why I need it to return a value? Well since that method is for saving data's, if there's an Error Occured, I can return the Error Message and show it to my user interface.
Please help. thanks

If you want to return your own type then simply define it as serializable and you will find that it will appear in the Client Interface dialog of your AM.
eg, you could return this type from your application module to progagate a meaningful message to your UI:
package com.delexian.model;
import java.io.Serializable;
public class MyMessage implements Serializable {
    private String _severity;
    private String _message;
    public MyMessage() {
    public void setSeverity(String severity) {
        this._severity = severity;
    public String getSeverity() {
        return _severity;
    public void setMessage(String message) {
        this._message = message;
    public String getMessage() {
        return _message;
}regards,
Brenden

Application Module and RAC

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