zenogantner/MyMediaLite — Issue #145: move methods from IRatings to IDataSet
Author: zenogantner
Created: 2011-11-21 15:06:00+00:00
State: open
Labels: enhancement

ISet GetUsers(IList indices);
ISet GetItems(IList indices);

int GetIndex(int user_id, int item_id);
int GetIndex(int user_id, int item_id, ICollection indexes);

bool TryGetIndex(int user_id, int item_id, out int index);
bool TryGetIndex(int user_id, int item_id, ICollection indexes, out int index);