public BaseNode( Node aParent, int achildPos, XMLNode aContent ) { super( aParent,achildPos);
public BaseNode(  XMLNode aContent ) { super();
  public BaseNode( Node aParent, int achildPos, XMLNode aContent ) {    super( aParent,achildPos);    left = new MatchedNodes(this);    right = new MatchedNodes(this);    content = aContent;  }