How to invoke Application Module method from backing bean

It would be common requirement to invoke a application module method from the backing bean. Unless if it is really required then only advisable to write a separate method in backing bean to invoke application module method. Follow the below steps to achieve this

Step1 :  Define the application module method in respective page definition as shown in below screen shot
 - Expose the method that you invoke in client interface, Goto Page Definition bindings and add the method bindings as shown below

Step2:  Write the below code in backing bean to invoke application module method

       

import oracle.adf.model.binding.DCBindingContainer;
import oracle.adf.model.binding.DCIteratorBinding;
import oracle.binding.BindingContainer;
import javax.el.ELContext;
import javax.el.ExpressionFactory;
import javax.el.ValueExpression;
import javax.faces.application.Application;
import javax.faces.context.ExternalContext;
import javax.faces.context.FacesContext;
import oracle.binding.OperationBinding;

  FacesContext facesContext = FacesContext.getCurrentInstance();
  Application app = facesContext.getApplication();
  ExpressionFactory elFactory = app.getExpressionFactory();
  ELContext elContext = facesContext.getELContext();
  ValueExpression valueExp =
    elFactory.createValueExpression(elContext, "#{bindings}", Object.class);
  BindingContainer binding= (BindingContainer)valueExp.getValue(elContext);
  OperationBinding operationBinding=binding.getOperationBinding("createCurrentCustomerRow");
  // Set the Input parameters to the operation bindings as below
     operationBinding.getParamsMap().put("pCustomerID", "100");  
  // Invoke the Application module method
  operationBinding.execute();
  // Get the result from operation bindings
  Object obj =operationBinding.getResult();
       
 

Alternative approach
import oracle.binding.OperationBinding;
   /**
    * This method returns the Operation Bindings based on given input opeation name
    */
    public static OperationBinding getOperationBinding(String pOperationName) {
        BindingContainer bc = BindingContext.getCurrent().getCurrentBindingsEntry();
        return bc.getOperationBinding(pOperationName);
    }

// Below is the code snippet to invoke above method

                OperationBinding oBindings =
                    getOperationBinding("getEmployeeDetails");
// Pass Input parameters
                oBindings.getParamsMap().put("empID", locRow.getDealerId());
                oBindings.getParamsMap().put("empLocID",
                                             locRow.getDealerLocationId());
                oBindings.execute();