package praktikum02;

public class Node<E> {
	private E value = null;
	private Node<E> prev = null;
	private Node<E> next = null;
	
	public Node(){
	}
	
	public Node(E element){
		value = element;
	}
	
	public E getValue() {
		return value;
	}
	public void setValue(E value) {
		this.value = value;
	}
	public Node<E> getPrev() {
		return prev;
	}
	public void setPrev(Node<E> prev) {
		this.prev = prev;
	}
	public Node<E> getNext() {
		return next;
	}
	public boolean hasNext(){
		return getNext()!=null;
	}
	public boolean hasPrev(){
		return getPrev()!=null;
	}
	public boolean hasValue(){
		return getValue()!=null;
	}
	public void setNext(Node<E> next) {
		this.next = next;
	}
	
	@Override
	public boolean equals(Object obj) {
		if(obj instanceof Node)
			return value.equals(((Node)obj).value);
		return false;
	}
	@Override
	public String toString() {
		if(value!=null)
			return value.toString();
		return super.toString();
			
	}
	
	
}