Writing object to object mapper

As a side product of some experiments I wrote simple LINQ query that matches properties of two objects and returns these properties as list. The code I wrote is pretty simple and I packed it for you as method.

Last year I wrote short posting about how to use LINQ to find matching properties of two objects. In this posting I will show you how to copy values from one object to another and how to boost up performance so you can use this strategy also on in servers under heavy load.

Today I gave last performance boost to my property values copying mechanism. I would like to thank my readers Ron and David to remind me Lightweight Code Generation (LCG) and pointing me out aussie bloke blog entry Generic copy object using Lightweight Code Generation. In this posting I will show you last performance boost and put down a summary about my experiment this far.

I wrote some object to object mapping code and introduced it in some of my previous postings about performance. As I received 22x performance raise when trying out different mapping methods and it is now time to make my code nice. In this posting I will show you how I organized my code to classes. Yes, you can use my classes in your work if you like. :)

In my previous posting about object to object mapping Writing object to object mapper: first implementations I wrote first and simple implementations of mapper. These implementations based heavily on reflection. In this posting I will boost up mapper performance by using generics.

As my object to object mapper is now almost completed and I am sure it is good idea to stay on LCG (Lightweight Code Generation) I can now compare the performance of my mapper toAutoMapper.

Some readers asked me for Visual Studio project of my simple object to object mapper. I am glad to announce that the source code of my mapper is now available for download. It is Visual Studio 2008 project written on C# and besides mapper implementation it contains primitive sample application that shows you how to use my mapper.

Back in time I wrote series of posts about how I built simple object to object mapper. It was nine years ago and from them more things have changed. Today I added one new implementation of mapper and this one is using Roslyn compiler services to generate dynamic code for mappings.