How can I filter the rows displayed on an ADF Table ? pls help urgent..

Question

Hi All,
I have a page with ADF readonly table, based on who is logging in I want to filter the rows to be displayed when the page is firstly loaded. This page is called from the main menu.
I have created a custom method in the Application Module Impl :
public void setInvoiceFilter () {
ViewObject vo = findViewObject("BrowseInvoice1");
ViewCriteria vc = vo.createViewCriteria();
ViewCriteriaRow vcr1 = vc.createViewCriteriaRow();
vcr1.setAttribute("Userid","xxxx");
vc.add(vcr1);
vo.applyViewCriteria(vc);
vo.executeQuery();
The question is : where and how should I call this method ?
is this a correct approach ?
Thank you very much for your help,
xtanto

Answer 1

I assume you're talking about a JSF application.
I think you should be able to do this in the constructor of a backing bean.
1) Add an operation binding, bound to your service method, to the page's pageDefinition.
2) On the JSF page flow Overview tab, add a managed property to the backing bean. Call it, say, myMethod, give it type oracle.bindings.OperationBinding, and give it the value #{bindings.nameOfYourOperationBinding}
3) Add a myMethod field of type OperationBinding, with getter and setter, to your backing bean class.
4) In the backing bean class's constructor, add code like:
myMethod.execute();This will execute the method every time the page is loaded.
Now, if you want to execute the method only the first time the page is loaded, it's a bit trickier. You need to set, and use, a session variable:
Map sessionVars = FacesContext.getCurrentInstance().getExternalContext().getSessionMap();
if (sessionVars.get("hereBefore") == null)
  myMethod.execute();
  sessionVars.put("hereBefore", "true");
}