/// <summary>Remove all items from index</summary>
public void ClearIndex()
{
RWLock.GetWriteLock(_lock, _lockTimeout, delegate {
_index.Clear();
return(true);
});
}
private INode GetNode(KeyType key)
{
return(RWLock.GetReadLock(_lock, _lockTimeout, delegate {
WeakReference value;
return (INode)(_index.TryGetValue(key, out value) ? value.Target : null);
}));
}
/// <summary>Add new item to index</summary>
/// <param name="item">item to add</param>
/// <returns>was item key previously contained in index</returns>
public bool AddItem(INode item)
{
KeyType key = _getKey(item.Value);
return(RWLock.GetWriteLock(_lock, _lockTimeout, delegate {
bool isDup = _index.ContainsKey(key);
_index[key] = new WeakReference(item, false);
return isDup;
}));
}
/// <summary>removes all items from index and reloads each item (this gets rid of dead nodes)</summary>
public int RebuildIndex()
{
lock (_owner._lifeSpan)
return(RWLock.GetWriteLock(_lock, _lockTimeout, delegate {
_index.Clear();
foreach (INode item in _owner._lifeSpan)
{
AddItem(item);
}
return _index.Count;
}));
}