Super class for all SOAP headers
OUTPUTTYPEATTRIBUTE allows the programmer to force the xsi:type attribute to be included in all elements of a SOAP message which is a web client request or web service response. If specified, this parameter overrides the OUTPUTTYPEATTRIBUTE of the client or service.
Header may have a wsu:Id attribute
Fault which is to be returned by web service based on error importing the header.
The xml:id attribute to be added to the header element when writing a SOAP message. Usually wsu:Id will be used, but in certain cases xml:id is needed.
SOAP 1.1 uses actor.
SOAP 1.2 uses role instead of actor.
Return the value of the Id property. Populate the Id property if it is not yet set.