JSF: how to avoid validation but still submit data to the "business layer"

Question

Greetings
The scenario is common and sounds like this:
1) We have 2 forms, each with some fields marked with required = "true"
2) Navigation between these two should be unlimited and data should be submitted to the (stateful) business layer every time we move from one to another, without validation,
thus all of my h:commandButton tags are marked with type="submit"
3) On final "save" command data should be validated and sent to DB
Now,
- if i avoid required attributes on fields, everything works fine except validation ofcourse
- if i add immediate="true" where needed, data gets lost when i navigate from one page to another
thanks a lot in advance

Answer 1

Use an EL expression for the value of the required attribute. Note that the important thing is its value during the subsequent request. If you have other types of validations you may have to use custom validators.