How to convert DBSequence to Number

Question

my case is
i can not convert DBSequence (id) primary key to Number
public String confirm()
AttributeBinding id = (AttributeBinding)getBindings().getControlBinding("Id");
AttributeBinding emp_id = (AttributeBinding)getBindings().getControlBinding("emp_id");
Number confirm_id = (Number)id.getInputValue();
emp_id .setInputValue(confirm_id );
return null;
}

Answer 1

sorry but it does not work correctly
1- i already got(read) id from the binding by
AttributeBinding id = (AttributeBinding)getBindings().getControlBinding("Id"); -------> "Id is of type sequence"
2- i got emp_id
AttributeBinding emp_id = (AttributeBinding)getBindings().getControlBinding("EmpId");--------> "EmpId is of type Number"
3- i want assign id to EmpId so i should read value of id
Number confirm_id = (Number)id.getInputValue();
4- finally i want assign confirm_id to emp_id
emp_id .setInputValue(confirm_id );
the problem is in step 3 because id is not Number and when i try to read another attribute instead of id (phone_no for example )
it work correctly becuase the phone number is of type Number.
so how can i assign id of type sequence to emp_id of type Number !!!