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BTDB

Currently this project these parts:

All code written in C# 11 and licensed under very permissive MIT license. Targeting .Net 8.0, main code has just 1 dependency (Microsoft.Extensions.Primitives). Code is tested using xUnit Framework. Used in production on Windows and Linux, on MacOS works as well. Please is you find it useful or have questions, write me e-mail boris.letocha@gmail.com so I know that it is used. It is available in Nuget http://www.nuget.org/packages/BTDB. Source code drops are Github releases.


Key Value Database

Features

Design limits

Sample code

using (var fileCollection = new InMemoryFileCollection())
using (IKeyValueDB db = new KeyValueDB(fileCollection))
{
    using (var tr = db.StartTransaction())
    {
        tr.CreateOrUpdateKeyValue(new byte[] { 1 }, new byte[100000]);
        tr.Commit();
    }
}

Roadmap


Wrapped Dynamic IL generation with debugging + extensions

This help you to write fluent code which generates IL code in runtime. It is used in Object Database part.

Sample code

var method = ILBuilder.Instance.NewMethod<Func<Nested>>("SampleCall");
var il = method.Generator;
var local = il.DeclareLocal(typeof(Nested), "n");
il
    .Newobj(() => new Nested())
    .Dup()
    .Stloc(local)
    .Ldstr("Test")
    .Call(() => ((Nested)null).Fun(""))
    .Ldloc(local)
    .Ret();
var action = method.Create();

Roadmap


Object Database

Features

Documentation: [https://github.com/Bobris/BTDB/blob/master/Doc/ODBDictionary.md]

Relations doc: [https://github.com/Bobris/BTDB/blob/master/Doc/Relations.md]

Sample code

public class Person
{
    public string Name { get; set; }
    public uint Age { get; set; }
}

using (var tr = _db.StartTransaction())
{
    tr.Store(new Person { Name = "Bobris", Age = 35 });
    tr.Commit();
}
using (var tr = _db.StartTransaction())
{
    var p = tr.Enumerate<Person>().First();
    Assert.AreEqual("Bobris", p.Name);
    Assert.AreEqual(35, p.Age);
}

Roadmap


Event storage

Features


Bon

Bon Binary object notation is allows creating and reading JavaScript/C# values with extensions like Dictionary/Map into binary notation. It is much faster to parse, write, skip, search by keys than JSON, size will be also smaller in most cases, in some cases much more smaller.


Snappy Compression

Features

Roadmap