public interface EmbeddedPacketExtension extends PacketExtension
PacketExtensionimplementations that contain other extensions. This effectively extends the idea of an extension within one of the top level
Packettypes to consider any embedded element to be an extension of its parent. This more easily enables the usage of some of Smacks parsing utilities such as
PacketParserUtils.parsePacketExtension(String, String, org.xmlpull.v1.XmlPullParser)to be used to parse any element of the XML being parsed.
Top level extensions have only one element, but they can have multiple children, or their children can have multiple children. This interface is a way of allowing extensions to be embedded within one another as a partial or complete one to one mapping of extension to element.