private Task <bool> AddToIndex(RedisIndex index, string value, double indexScore)
{
return(this._redisDb.SortedSetAddAsync(index.ToString(), value, indexScore));
}
public async Task <UInt256> GetFromHashIndex(RedisIndex index, double indexScore)
{
var values = (await _redisDb.SortedSetRangeByScoreAsync(index.ToString(), indexScore, indexScore)).ToStringArray();
return(values.Any() ? UInt256.Parse(values.First()) : null);
}
/// <summary>
/// Retrieves the length / number of elements in an index
/// </summary>
/// <param name="index">Index to retrieve the length of</param>
/// <returns></returns>
public long GetIndexLength(RedisIndex index)
{
return(_redisDb.SortedSetLength(index.ToString()));
}
/// <summary>
/// Retrieves a specified range of values from a Redis Sorted Set based on a range of scores
/// </summary>
/// <param name="index">Index to search</param>
/// <param name="startIndexScore">Range starting score</param>
/// <param name="endIndexScore">Range end score</param>
/// <returns></returns>
public RedisValue[] GetRangeFromIndex(RedisIndex index, double startIndexScore, double endIndexScore)
{
return(_redisDb.SortedSetRangeByScore(index.ToString(), startIndexScore, endIndexScore));
}
/// <summary>
/// Retrieves a specified value from a Redis Sorted Set based on score.
/// </summary>
/// <param name="index">Index to search</param>
/// <param name="indexScore">Score to retrieve.</param>
/// <returns></returns>
public RedisValue[] GetFromIndex(RedisIndex index, double indexScore)
{
return(_redisDb.SortedSetRangeByScore(index.ToString(), indexScore, indexScore));
}
/// <summary>
/// Adds a specified value and score to a Redis Sorted Set. Using a Redis Sorted Set will give us a O(log(n)) complexity on search.
/// </summary>
/// <param name="index">Index to write</param>
/// <param name="indexScore">Score to assign</param>
/// <param name="value">Value associated with score</param>
public void AddToIndex(RedisIndex index, double indexScore, string value)
{
_redisDb.SortedSetAdd(index.ToString(), value, indexScore);
}