Implements related WS-Transfer messages, that is GetMessage, GetMessageResponse, GetMetadataMessage, GetMetadataResponseMessage.

All classes extend Message

GetMessage and GetMetadataMessage both construct an empty SOAP Header with the appropriate action tag (see WS-Transfer Constants), and a unique MessageID (tag messageID) set.

GetResponseMessage and GetMetadataResponseMessage both construct an empty SOAP Header with the appropriate action tag (see WS-Transfer Constants) set.