How to set Limit Number of Documents in a Form Library

I have a form library and want to limit the number documents added to it. I want the library to have only one item in it. Let me know if there is some easiest wa开发者_如何学JAVAy to do it. The documents are added via infopath form.

There is no out of the box way for this. why do you want to have such limitation ?

If you really need to do this, you can impose this via event handler. But there are questions:

What will happen to new documents being added - Will they be deleted , moved somewhere ?