Invoking Application module method as default activity with return parameter from bean

Sometimes when task flow is initialized before loading page/fragment we need to execute Application Module method which returns parameter to manipulate some logic. 

Shown below is one way to achieve this kind of use case .

1. Have a method in AMImpl which returns parameter , here Map is returned .
2. Drag and drop the AM method on task flow , which creates binding in DataBinding.cpx

DataBinding.cpx will have a page map and page definition usages

<page path="/Sample-TF.xml#Sample-TF@employeeAMMethod"                         usageId="view_Sample_TF_Sample_TF_employeeAMMethodPageDef"/>

<page id="view_Sample_TF_Sample_TF_employeeAMMethodPageDef"

   path="view.pageDefs.Sample_TF_Sample_TF_employeeAMMethodPageDef"/>

Now implement a bean method activity on task flow , below i have execute AMImpl method ,result is returned and setting to bean variable which i will be showing as output text in fragment.


            //Get the current binding context
        BindingContext binding = BindingContext.getCurrent();

        //Find our binding container by name (page id in the DataBindings.cpx)
        DCBindingContainer dcBinding =
            binding.findBindingContainer("view_Sample_TF_Sample_TF_employeeAMMethodPageDef");
        //Execute the method
        OperationBinding operation = dcBinding.getOperationBinding("employeeAMMethod");
        operation.execute();

Output on fragment 

Happy Learning !!!