How to invoke Application Module method from entity object methods

Hi,
We have an existing Application Module which provides some validation logic. We are using OperatingBinding or getting the Application Module instance from the bindings and then invoking the app module methods in the view controller project.
But in our current scenario, We need to invoke the application module method from the setAttribute method in the entity object when ever an entity attribute value is changed . I believe we can call createRootApplicationModule method to create application module instance. But this may lead to performance overhead.
Can you please suggest, if there is any alternative to invoke the application module method inside the business components.
What is the best way to create

We have a pricing service, which was developed as a separate application. We need to invoke the pricing service with the change in certain attributes of the entity object and update some of the attributes of the current entity object. At present we are handling these calls to the pricing service in the ui layer in the valueChangeListener.
But we would like to move this service call into setAttribute method as we are unable to prevent the call to the service if the model validations fail. I am looking for the best possible approach for invoking the service calls from the entity objects.
Thanks and Regards,
S R Prasad

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Hi All,
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How to get application module instance from java bundle?

Hi!
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Marko,
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Can you describe why and when you try to read the resource bundle from the db and where the resource bundle is used?
This blog may be what you are looking for http://technology.amis.nl/2012/08/10/implement-resource-bundles-for-adf-applications-in-a-database-table/
Timo

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package client;
import javax.naming.Context;
import javax.naming.InitialContext;
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import oracle.jbo.*;
import org.omg.CORBA.*;
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// home
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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
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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)
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ObjectName = /test/jd/freshJBOModule
Server Class = freshJBO.server.o8.FreshJBOModuleServerO8
Helper Class = oracle.jbo.common.remote.corba.RemoteApplicationModuleHomeHelper
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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");
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Good luck
Blaise

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By design, clients cannot directly access entity objects. The view object layer provides an extra layer of security--you can choose exactly what data and methods you want clients to see.
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Hi Lisa,
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Is there any way to call view controller method from component controller method?
Thanks,

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Does the helper code depend on features of a particular entity object instance, beyond its database transaction?
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Here is another solution as provided by Oracle Support in response to a TAR that I opened:
I had described my need to access a login() function defined in my Application Module, returning true/false if the login succeeds/fails. Here is the reply, posted with permission:
I have gotten the following information back from one of the development folks pertaining to the question you asked.
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1) Expose the method as a client method on the App module
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How to invoke Application Module method from entity object methods

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