/*
 * File: ZHLinkedHealTailList.java
 */

package zhstructures;

/**
 * Class implementing the ZHHeadTailList interface as a ZHOneWayLinkedStructure.
 *
 * @author J. Andrew Holey
 * @version January 16, 2009
 */
public class ZHLinkedHeadTailList<ElementType>
	   extends ZHOneWayLinkedStructure<ElementType, ZHLinkedHeadTailList<ElementType>>
       implements ZHHeadTailList<ElementType> {

	/**
	 * Creates a new empty list.
	 */
	public ZHLinkedHeadTailList() {
		super();
	}

	/**
	 * Creates a new list with the specified head element and tail.
	 * 
	 * @param headElement the element to be at the head of the new list
	 * @param tail the list to be the tail of the new list
	 */
	public ZHLinkedHeadTailList(ElementType headElement,
                                ZHLinkedHeadTailList<ElementType> tail) {
		super(headElement, tail);
	}

	/* (non-Javadoc)
	 * @see zhstructures.ZHHeadTailList#head()
	 */
	@Override
	public ElementType head() {
		return this.element;
	}

	/* (non-Javadoc)
	 * @see zhstructures.ZHHeadTailList#tail()
	 */
	@Override
	public ZHHeadTailList<ElementType> tail() {
		return this.next;
	}

}