package clist;

abstract class ANode
{
	abstract Object getDat (CLList owner);

   /**
   * @return owner.
   */
	abstract CLList setDat (Object dat, CLList owner);

   /**
   * @return owner.
   */
 	abstract CLList insertClockwise (Object dat, CLList owner);

   /**
   * @return owner.
   */
	abstract CLList insertCounterwise (Object dat, CLList owner);

	abstract Object remClockwise (CLList owner);
	abstract Object remCounterwise (CLList owner);
   abstract CLList getClockwiseTail (CLList owner);
	abstract CLList getCounterwiseTail (CLList owner);
	abstract Object execute (ICLVisitor algo, CLList stop, Object inp, CLList owner);
	abstract void setClockwiseOwner (CLList cllist);
	abstract void setCounterwiseOwner (CLList cllist);
}