Ayende @ Rahien

Hi!
My name is Oren Eini
Founder of Hibernating Rhinos LTD and RavenDB.
You can reach me by phone or email:

ayende@ayende.com

+972 52-548-6969

, @ Q c

Posts: 10 | Comments: 36

filter by tags archive

Why NH Prof isn't functional

time to read 1 min | 150 words

One of the things that I wanted to do with NH Prof is to build it in a way that would be very close to the Erlang way. That is, functional, immutable message passing. After spending some time trying to do this, I backed off, and used mutable OO with message passing.

The reason for that is quite simple. State.

Erlang can get away with being functional language with immutable state because it has a framework that manages that state around, and allow you to replace your state all the time. With C#, while I can create immutable data structures, if I want to actually create a large scale application using this manner, I have to write the state management framework, which is something that I didn't feel like doing.

Instead, I am using a more natural model for C#, and using the bus model to manage thread safety and multi threading scenarios.


Comments

William Riley-Land

That sounds very interesting. This is the one that isn't open source right? I'm not complaining, and I look forward to purchasing it when it is complete. What's a good reference for this kind of design pattern? Where can I see source that deals in what you are talking about (obviously not from NHP itself)?

Dajo

i think there could be a way to do it in the erlang style, because there is an erlang compiler for .Net ( http://erlangdotnet.net/). i dont know wich language is used for it, but i think it's c#.

Ted
Ted

How does the bus model manage thread safety/multi-threading?

Comment preview

Comments have been closed on this topic.

FUTURE POSTS

  1. Production postmortem: The case of the memory eater and high load - about one day from now
  2. Production postmortem: The case of the lying configuration file - 3 days from now
  3. Production postmortem: The industry at large - 4 days from now
  4. The insidious cost of allocations - 5 days from now
  5. Find the bug: The concurrent memory buster - 6 days from now

And 4 more posts are pending...

There are posts all the way to Sep 10, 2015

RECENT SERIES

  1. Find the bug (5):
    20 Apr 2011 - Why do I get a Null Reference Exception?
  2. Production postmortem (10):
    14 Aug 2015 - The case of the man in the middle
  3. What is new in RavenDB 3.5 (7):
    12 Aug 2015 - Monitoring support
  4. Career planning (6):
    24 Jul 2015 - The immortal choices aren't
View all series

Syndication

Main feed Feed Stats
Comments feed   Comments Feed Stats