About

Advanced dictionary for .Net Core => 2.0 (.Net Standard => 2.0) is regular dictionary with some advanced features. This include maximum size limit to avoid out-of-memory issues, auto value retrieval if key not found, auto cleanup of old keys if more space is required and multi-threading (concurrent access). It is perfect for in-memory cache and for other general purposes.

Note

This repository is the port of DotAdvancedDictionary for .Net Core.

Usage

The usage is same as regular dictionary with some extra parameters (only weight is required; others are optional) while creating dictionary object. Please see the below example:

public void DictionaryUsageExample()
{
    // Initializing advanced dictionary.
    AdvancedDictionary<string, string> myAdvancedDictionary = new AdvancedDictionary<string, string >(250, 30, GetDataWeight, GetValue);

    // Adding items - method way.
    myAdvancedDictionary.Add("key1", "value1");
    myAdvancedDictionary.Add("key2", "value1");

    // Adding items - indexer way.
    myAdvancedDictionary["key3"] =  "value3";
    myAdvancedDictionary["key4"] = "value4";

    // Getting Key - Not exists - Will be retrieved from delegate.
    var myValue = myAdvancedDictionary["key5"];

    // Printing all the keys and values.
    foreach (var currentItem in myAdvancedDictionary)
    {
        System.Console.WriteLine("Key = {0}, Value = {1}", currentItem.Key, currentItem.Value);
    }
}

/// <summary>
/// Delegate to compute the weight for a given data.
/// </summary>
public static int GetDataWeight(string data)
{
    return 5;
}

/// <summary>
/// Delegate to retrieve the value if key not found in the dictionary.
/// </summary>
public static string GetValue(string key)
{
    return "Value from Delegate for key = " + key;
}

Nuget

The package can be downloaded from nuget with the following link: