public bool ContainsKey(K2 key2)
{
lock (Locker)
{
return(Key2ToKey1.ContainsKey(key2));
}
}
public void Add(K1 key1, K2 key2)
{
lock (Locker)
{
Key1ToKey2.Add(key1, key2);
Key2ToKey1.Add(key2, key1);
}
}
public K1 Get(K2 key2)
{
lock (Locker)
{
K1 key1;
if (Key2ToKey1.TryGetValue(key2, out key1))
{
return(key1);
}
else
{
return(default(K1));
}
}
}
public bool Remove(K2 key2)
{
lock (Locker)
{
K1 key1;
if (Key2ToKey1.TryGetValue(key2, out key1))
{
Key2ToKey1.Remove(key2);
Key1ToKey2.Remove(key1);
return(true);
}
else
{
return(false);
}
}
}
