Adding a dynamic where clause using positional parameters

The following piece of code shows how to add a dynamic where clause to a view object .
It also shows how to set the bind parameters (using the positioning style not the named bind parameters)

    public void addWhereClause(){
        ViewObject vo=this.getEmp1();
       
        vo.setWhereClauseParams(null);
        vo.setWhereClause(null);
       
        vo.setWhereClause("Empno=:1");
        vo.setWhereClauseParam(0,new Integer("7369"));
        // you can also use the following code to set the positional parameters.
        // vo.setWhereClauseParams(new Object[]{new Integer("7369")});
        //
        // The difference between the two apis is that one explicitly provides
        // the bind parameter position and in the second one the position is implicity
       
        vo.executeQuery();
       
        vo.setWhereClauseParams(null);
        vo.setWhereClause(null);
    }

Using the "setWhereClauseParam" or "setWhereClauseParams" api's you cannot set the named bind parameters....