Sources of parameters

Formio is not limited to processing parameters only from HttpServletRequest. Other sources of parameters can be implemented. Data binding (bind method) works with interface RequestParams - preprocessor of form parameters. This interface can be implemented to accept parameters from various environments. Available implementations are:

• ServletRequestParams - extracts parameters from HttpServletRequest,
• PortletRequestParams - extracts parameters from from javax.portlet.ActionRequest.

Forms in portlets

For portlets, PortletRequestParams is available and you can use it in the same way as ServletRequestParams. It supports also file uploads. Of course you must have  portlet-api in the classpath of your project.

Binding and validating parameters from javax.portlet.ActionRequest:

FormData<Person> personData = personForm.bind(new PortletRequestParams(request));
if (personData.isValid()) {
  // save the person: formData.getData()
} else {
  // show again the invalid form with validation 
  // messages: personForm.fill(formData) ...
}