ADF Mobile webservice datacontrol parameter problem

Question

Hi, I have a method in my WS which has a List lista as input parameter when I create the datacontrol It shows Object instead of list,
how can I solve this? I cannot use List<MyBean> because this is not awolled in adfmobile
I use Jdeveloper 11.1.2.3.0
--diego10.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       

Answer 1

Hi,
1. you actually need to create an entity of the type the list objects are of. E.g. Employee to represent a list of employees
2. You access the WS DC programmatically from Java and encapsulate it in an array of Employees (to follow my sample)
3. You use a POJO data control to expose the array list
private HashMap employeeListCache = null;
     * Query all employees from a Web Service and keep the value local.
     * @return Collection of Employees
    public Employees[] getAllEmployees() {       
        Employees[] emps = null;
        if (employeeListCache == null) { 
            employeeListCache = _findAllEmployees();
        emps = (Employees[])employeeListCache.values().toArray(new Employees[employeeListCache.size()]);       
        return emps;
  private HashMap _findAllEmployees() {
        try {
            //renew all employee data
            employeeListCache = new HashMap();
            //invoke WS data control from this POJO
            ArrayList parameterNames = new ArrayList();
            ArrayList parameterValue = new ArrayList();
            ArrayList parameterTypes = new ArrayList();
            //Generic representation of a data control's data provider object. It exposes meta information about
            //the providers attributes and accessors, as well as the ability to get and set their values.
            //This interface abstracts the raw data provider object from the nature of its type of data control;
            //the raw provider can be a deserialized representation of an object returned by a SOAP or REST web
            //service call, or it can be an actual java class instance. This interface is used primarily by the
            //internals of the embedded java data control framework, however it can also be used when invoking data
            //control methods directly from application java bean code.
            GenericType employeesList =
                (GenericType)AdfmfJavaUtilities.invokeDataControlMethod("HrWSDC", null, "getEmployeesFindAll",
                                                                        parameterNames, parameterValue,
                                                                        parameterTypes);           
            if (employeesList != null) {
                for (int i = 0; i < employeesList.getAttributeCount(); i++) {
                    GenericType row = (GenericType)employeesList.getAttribute(i);
                    Employees employee = (Employees)GenericTypeBeanSerializationHelper.fromGenericType(Employees.class, row);           
                    employeeListCache.put(employee.getEmployeeId(),employee);
        } catch (AdfInvocationException e) {
            logApplicationMessage(Level.SEVERE, "Cannot read data from Web Service \n", ""+ e.getMessage());
        return employeeListCache;
    }Here's the full sample and doc:
http://www.oracle.com/technetwork/developer-tools/adf/learnmore/m05-ws-pojo-caching-1940037.pdf
http://www.oracle.com/technetwork/developer-tools/adf/learnmore/m05-ws-pojo-caching-1940039.zip
Frank