Get input text from empty Select


I am using Vaadin 6.7.0 in my project.

I have a requirement wherein I have to create an empty Select (dropdown).
Once the user enters some input, using that I have to populate the Select.
But as the Select is empty initially, when input is entered, it gets cleared on blur and I cannot get the entered input.

I tried using Select component with no luck yet.
How do I go about this?
Am I using the right component or can you suggest some alternatives?
Help is very much appreciated.

Use the ComboBox and a AbstractSelect.NewItemHandler