Only one JSF form is it necessary?

I have some input in my page to submit a subscription and a h:dataTable. My doubt its necessary one h:form for the inputs and another f开发者_如何学运维or the dataTable, or only one containing both?

If you want to submit the elements together you can put them inside the same h:form.

If the h:dataTable doesn't contain input elements you don't need to put it inside a form.