Java Development Tools

Hi All,
I am using jdev 11.1.2.1.0

I have a VO having query with multiple binding variables in it.
This query is fired on page load and data grid on UI is populated.
I did some change in components to load new data.
On Load button click, I need to again populate data grid with different values based on the user input.
For this, I have created new query string in managed bean. This new query string is almost same as VO query but in here, there are no ? marks.(VO query has 25 ? marks). But this new query string has all ? positions have filled up with new data.
Also, I have created a method in VOImpl, passed query string and order by clause:

    public void setCustomQuery(String query, String orderBy){
        this.setQuery(query);
        this.setOrderByClause(orderBy);
        this.executeQuery();
    }

I am calling this method from managed bean and passing query string and order by clause as parameter, as shown below:

        DCBindingContainer bindings = (DCBindingContainer)BindingContext.getCurrent().getCurrentBindingsEntry();
        OperationBinding opBinding = bindings.getOperationBinding("setCustomQuery");
        opBinding.getParamsMap().put("query", getSQL());
        opBinding.getParamsMap().put("orderBy", " OptionID ");
        opBinding.execute();

But It is not showing new data in the datagrid. I have given Load button as partial trigger to table(data grid).

Exception throwing is index 1 out of range
I think it because of VO query has ? marks. So it is looking for binding var's. That's why it is throwing exception.
How can we set in here @ VOImpl class: not to consider question marks?
How to implement this?

Appreciate your help...

Thanks and Regards,
Madhav K.