How could i set the RangeSize of an UI iterator programatically ?

Question

I have a use case to vary the RangeSize of an UI iterator programatically (the value is obtained from a user input). I found that the RangeSize parameter in the <iterator> definition does not accept EL expressions. I tried to set this RangeSize through a method call in the task flow before this UI view is invoked and bound the method to this UI view's pageDef and removed the RangeSize while defining the iterator.
<iterator Binds="Employee"
              DataControl="EmployeeAMDataControl"
              id="EmployeeIterator"/>
Java Code to set the RangeSize: // accepts the iterator name as a string input
    DCBindingContainer bindings = (DCBindingContainer) this.getBindings();
    DCIteratorBinding objectIterator = bindings.findIteratorBinding(iterator);
    objectIterator.setRangeSize(_getRangeSize()); // _getRangeSize() returns an int
   public BindingContainer getBindings()
       FacesContext fc = FacesContext.getCurrentInstance();
       return (BindingContainer) fc.getApplication().evaluateExpressionGet(fc, "#{bindings}", BindingContainer.class);
This setting is ignored and the iterator always to return 25 records. Any suggestions on how i could achieve this use case ?
thanks
kaarthik

Answer 1

Hi karthik,
Try setting the same using the viewobject in the code.
    DCBindingContainer bindings = (DCBindingContainer) this.getBindings(); 
    DCIteratorBinding objectIterator = bindings.findIteratorBinding(iterator);
    objectIterator.getViewObject().setRangeSize(_getRangeSize());
Thanks,
Raj Gopal K