public SimplePriorityQueue()
{
_queue = new GenericPriorityQueue <SimpleNode, TPriority>(INITIAL_QUEUE_SIZE);
}
/// <summary>
/// Instantiate a new Priority Queue
/// </summary>
/// <param name="comparer">The comparison function to use to compare TPriority values</param>
public SimplePriorityQueue(Comparison <TPriority> comparer)
{
_queue = new GenericPriorityQueue <SimpleNode, TPriority>(INITIAL_QUEUE_SIZE, comparer);
_itemToNodesCache = new Dictionary <TItem, IList <SimpleNode> >();
_nullNodesCache = new List <SimpleNode>();
}
/// <summary>
/// Instantiate a new Priority Queue
/// </summary>
/// <param name="priorityComparer">The comparison function to use to compare TPriority values</param>
/// <param name="itemEquality">The equality comparison function to use to compare TItem values</param>
public SimplePriorityQueue(Comparison <TPriority> priorityComparer, IEqualityComparer <TItem> itemEquality)
{
_queue = new GenericPriorityQueue <SimpleNode, TPriority>(INITIAL_QUEUE_SIZE, priorityComparer);
_itemToNodesCache = new Dictionary <TItem, IList <SimpleNode> >(itemEquality);
}