package speiger.src.collections.PACKAGE.queues;

public interface PRIORITY_DEQUEUE KEY_GENERIC_TYPE extends PRIORITY_QUEUE KEY_GENERIC_TYPE
{
	public void ENQUEUE_FIRST(KEY_TYPE e);
	public KEY_TYPE DEQUEUE_LAST();
	public default KEY_TYPE LAST_KEY() { return PEEK(size()-1); }
	
#if !TYPE_OBJECT
	public default void enqueueFirst(CLASS_TYPE e) { ENQUEUE_FIRST(OBJ_TO_KEY(e)); }
	public default CLASS_TYPE dequeueLast() { return KEY_TO_OBJ(DEQUEUE_LAST()); }
	public default CLASS_TYPE last() { return peek(size()-1); }
#endif
}