fi.joensuu.cs.tra
Class EOL<E>

java.lang.Object
  fi.joensuu.cs.tra.ListNode<E>
      fi.joensuu.cs.tra.EOL<E>

public class EOL<E>
extends ListNode<E>

EOL is a subclass of ListNode used to mark the end of the end of TraLinkedList. Its only uses are basically in checking whether the next node in a TraLinkedList is the end of the list and for use as a positional parameter when inserting ListNodes at the end of the list. For example

   // Traversing a list (assuming the list is not empty)
   node = list.first();
   while (node != list.EOL)
     node = node.next();

   // Inserting (appending) at the end of the list
   list.insert(list.EOL, something);
 

Method Summary

E	getElement() Always throws an TraLinkedListException.
ListNode<E>	next() Always throws a TraLinkedListException.
ListNode<E>	previous() Always throws an TraLinkedListException.
String	toString() Returns the element's toString().

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Detail

previous

public ListNode<E> previous()

Always throws an TraLinkedListException.

Overrides:

previous in class ListNode<E>

Returns:

this node's previous node or null if none.

next

public ListNode<E> next()

Always throws a TraLinkedListException.

Overrides:

next in class ListNode<E>

Returns:

this node's next node or EOL if none.

Throws:

TraLinkedListExecption

getElement

public E getElement()

Always throws an TraLinkedListException.

Overrides:

getElement in class ListNode<E>

Returns:

this node's element or null if none.

toString

public String toString()

Description copied from class: ListNode

Returns the element's toString().

Overrides:

toString in class ListNode<E>