internal TopicDescription(string path, TopicDescriptionXml xml)
 {
     this.xml = xml;
     if (null != xml)
     {
         this.xml.Path = path;
     }
 }
 /// <summary>Initializes a new instance of the
 /// <see cref="T:Microsoft.ServiceBus.Messaging.TopicDescription" /> class with the specified relative path.</summary>
 /// <param name="path">Path of the topic relative to the namespace base address.</param>
 public TopicDescription(string path)
 {
     this.xml = new TopicDescriptionXml(path);
 }