Getting
Ref of the View Object referenced by the current Iterator binding for One
iterator page without knowing the name of the iterator
In a previous blog (Playing around with ADFdatacontrol), it was shown that you can
get the ApplicationModule object without having to know the name of the Data
Control. i mean Instead of this line of code
AppModuleImpl appmodule =
(AppModuleImpl)ADFUtils.getApplicationModuleForDataControl("AppModuleDataControl");
you could write the following
DCBindingContainer binding =
(DCBindingContainer)ADFUtils.getBindingContainer();
DCDataControl cDataControl = binding.getDataControl();
ApplicationModule AM =cDataControl.getApplicationModule();
Now, and in order to be more generic in code writing, here is
a code that will get you the View Object to which the iterator binding
of a page is bound to.
This code will work for simple pages that contain one
iterator binding because if there are two iterator bindings within the same
page definition, you will need to specify which one you
want
// this piece of code will get all iterator bindings for the
page and will check that there is only ONE iterator binding, this
implementation is much faster than iterator through the iterator and count it
ArrayList arr =
binding.getAllIterBindingList();
if (arr instanceof Collection)
{
int size = (arr).size();
System.out.println(size);
if (size != 1) {
System.out.println("not
single iterator ok");
// practically, should through an exception
}
else
{
//
once you are sure there is only one iterator, then you fetch the first
iteratorbinding in the list
DCIteratorBinding ItrBind =
(DCIteratorBinding)arr.get(0);
// here you get the viewobject that
the iterator references without its name
ViewObject voData =
ItrBind.getViewObject();
// just playing around with some method of the view object to test
Long range =
voData.getEstimatedRowCount();
System.out.println("Range
:" + range.toString());
System.out.println("VO
name " + voData.getDefFullName());
}
}
else
{
System.out.println("not a
collection ");
}
You can now create a method that
shall return the ViewObject
public ViewObject
getCurrentIteratorVO () {
DCBindingContainer binding =
(DCBindingContainer)ADFUtils.getBindingContainer();
ArrayList arr =
binding.getAllIterBindingList();
if (arr instanceof Collection)
{
int size = (arr).size();
System.out.println(size);
if (size != 1) {
System.out.println("not
single iterator ");
// practically, should through an
exception
}
else {
DCIteratorBinding ItrBind =
(DCIteratorBinding)arr.get(0);
ViewObject voData =
ItrBind.getViewObject();
return voData;
}
}
else
{
else
{
System.out.println("not a
collection ");
}
return null;
}
Call the method
public String cb6_action() {
// Add event code here...
ViewObject vv = getCurrentIteratorVO();
return null;
}
The output is
1
Range :14
VO name model.EmpView
