code: private void relink(SimpleOutputElement parent,
                          String prefix, String localName, String uri)
      {
          super.relink(parent);
          mParent = parent;
          mPrefix = prefix;
          mLocalName = localName;
          mURI = uri;
          mNsMapping = parent.mNsMapping;
          mNsMapShared = (mNsMapping != null);
          mDefaultNsURI = parent.mDefaultNsURI;
          mRootNsContext = parent.mRootNsContext;
      }
docs: Method called to reuse a pooled instance.
  
  @returns Chained pooled instance that should now be head of the
  reuse chain