Oren Eini

aka Ayende Rahien

Oren Eini

CEO of RavenDB

a NoSQL Open Source Document Database

Get in touch with me:

oren@ravendb.net +972 52-548-6969

Posts: 7,575
|
Comments: 51,189

Copyright ©️ Ayende Rahien 2004 — 2025

Privacy Policy · Terms
filter by tags archive
stack view grid view
  • architecture (606) rss
  • bugs (450) rss
  • challanges (123) rss
  • community (377) rss
  • databases (481) rss
  • design (893) rss
  • development (640) rss
  • hibernating-practices (71) rss
  • miscellaneous (592) rss
  • performance (397) rss
  • programming (1085) rss
  • raven (1442) rss
  • ravendb.net (526) rss
  • reviews (184) rss
  • 2025
    • May (7)
    • April (10)
    • March (10)
    • February (7)
    • January (12)
  • 2024
    • December (3)
    • November (2)
    • October (1)
    • September (3)
    • August (5)
    • July (10)
    • June (4)
    • May (6)
    • April (2)
    • March (8)
    • February (2)
    • January (14)
  • 2023
    • December (4)
    • October (4)
    • September (6)
    • August (12)
    • July (5)
    • June (15)
    • May (3)
    • April (11)
    • March (5)
    • February (5)
    • January (8)
  • 2022
    • December (5)
    • November (7)
    • October (7)
    • September (9)
    • August (10)
    • July (15)
    • June (12)
    • May (9)
    • April (14)
    • March (15)
    • February (13)
    • January (16)
  • 2021
    • December (23)
    • November (20)
    • October (16)
    • September (6)
    • August (16)
    • July (11)
    • June (16)
    • May (4)
    • April (10)
    • March (11)
    • February (15)
    • January (14)
  • 2020
    • December (10)
    • November (13)
    • October (15)
    • September (6)
    • August (9)
    • July (9)
    • June (17)
    • May (15)
    • April (14)
    • March (21)
    • February (16)
    • January (13)
  • 2019
    • December (17)
    • November (14)
    • October (16)
    • September (10)
    • August (8)
    • July (16)
    • June (11)
    • May (13)
    • April (18)
    • March (12)
    • February (19)
    • January (23)
  • 2018
    • December (15)
    • November (14)
    • October (19)
    • September (18)
    • August (23)
    • July (20)
    • June (20)
    • May (23)
    • April (15)
    • March (23)
    • February (19)
    • January (23)
  • 2017
    • December (21)
    • November (24)
    • October (22)
    • September (21)
    • August (23)
    • July (21)
    • June (24)
    • May (21)
    • April (21)
    • March (23)
    • February (20)
    • January (23)
  • 2016
    • December (17)
    • November (18)
    • October (22)
    • September (18)
    • August (23)
    • July (22)
    • June (17)
    • May (24)
    • April (16)
    • March (16)
    • February (21)
    • January (21)
  • 2015
    • December (5)
    • November (10)
    • October (9)
    • September (17)
    • August (20)
    • July (17)
    • June (4)
    • May (12)
    • April (9)
    • March (8)
    • February (25)
    • January (17)
  • 2014
    • December (22)
    • November (19)
    • October (21)
    • September (37)
    • August (24)
    • July (23)
    • June (13)
    • May (19)
    • April (24)
    • March (23)
    • February (21)
    • January (24)
  • 2013
    • December (23)
    • November (29)
    • October (27)
    • September (26)
    • August (24)
    • July (24)
    • June (23)
    • May (25)
    • April (26)
    • March (24)
    • February (24)
    • January (21)
  • 2012
    • December (19)
    • November (22)
    • October (27)
    • September (24)
    • August (30)
    • July (23)
    • June (25)
    • May (23)
    • April (25)
    • March (25)
    • February (28)
    • January (24)
  • 2011
    • December (17)
    • November (14)
    • October (24)
    • September (28)
    • August (27)
    • July (30)
    • June (19)
    • May (16)
    • April (30)
    • March (23)
    • February (11)
    • January (26)
  • 2010
    • December (29)
    • November (28)
    • October (35)
    • September (33)
    • August (44)
    • July (17)
    • June (20)
    • May (53)
    • April (29)
    • March (35)
    • February (33)
    • January (36)
  • 2009
    • December (37)
    • November (35)
    • October (53)
    • September (60)
    • August (66)
    • July (29)
    • June (24)
    • May (52)
    • April (63)
    • March (35)
    • February (53)
    • January (50)
  • 2008
    • December (58)
    • November (65)
    • October (46)
    • September (48)
    • August (96)
    • July (87)
    • June (45)
    • May (51)
    • April (52)
    • March (70)
    • February (43)
    • January (49)
  • 2007
    • December (100)
    • November (52)
    • October (109)
    • September (68)
    • August (80)
    • July (56)
    • June (150)
    • May (115)
    • April (73)
    • March (124)
    • February (102)
    • January (68)
  • 2006
    • December (95)
    • November (53)
    • October (120)
    • September (57)
    • August (88)
    • July (54)
    • June (103)
    • May (89)
    • April (84)
    • March (143)
    • February (78)
    • January (64)
  • 2005
    • December (70)
    • November (97)
    • October (91)
    • September (61)
    • August (74)
    • July (92)
    • June (100)
    • May (53)
    • April (42)
    • March (41)
    • February (84)
    • January (31)
  • 2004
    • December (49)
    • November (26)
    • October (26)
    • September (6)
    • April (10)
Comparison page for RavenDB and MongoDB
  previous post next post  
Apr 21 2008

DSL Article on InfoQ

time to read 1 min | 18 words

image_boo.jpg

My DSL article has been published on InfoQ!

You can get it here

Tweet Share Share 13 comments
Tags:
  • Boo
  • Domain Specific Languages

  previous post next post  

Comments

Quest4Denali
21 Apr 2008
17:12 PM
Quest4Denali

Great article, can't wait for the book.

Kevin
21 Apr 2008
17:33 PM
Kevin

excellent article. Look forward to your book. Will buy one as soon as it comes out. My appreciation for your good/hard work.

How can I get started with BOO?

Quest4Denali
21 Apr 2008
18:17 PM
Quest4Denali

I second that. Do you have any recommendations for resources to help in learning Boo? Powered through http://boo.codehaus.org/ and would like to learn more.

Ray
21 Apr 2008
19:14 PM
Ray

Very nice article. Thanks Ayende!

Paul Cowan
21 Apr 2008
19:16 PM
Paul Cowan

Here is a tutorial I found useful:

http://docs.codehaus.org/display/BOO/Boo+Primer

Kevin
21 Apr 2008
19:54 PM
Kevin

Just bought the MEAP of the book, which will jump start my learning of BOO and DSL - my support is done BTW :-)

the major benefit of using DSL, BOO is to provide a solution in the domain which has long standing value.

How can I justify the learning curve/maintenance cost of introducing BOO, DSL into a project/product development upfront, e.g when talking to architect, project manager?

I did an ETL project 2 years ago using C# and Schematron (XML, XSLT based rule validation), which is not very fast, but do providing flexibility of XML based rule engine. it was OK to use XML based programming :-). But selling BOO, DSL in real project is a little bit harder, IMHO.

Brian Chavez
21 Apr 2008
20:01 PM
Brian Chavez

Great article. I understand more about DSLs, and where Boo & Binsor. come into play... :) Many thanks Oren.

Claudio Figueiredo
21 Apr 2008
21:21 PM
Claudio Figueiredo

Somehow the word has spreaded that YOU are a TEAM. :)

The Article says it's "Posted by Ayende Rahien and Oren Eini " lol

Regards,

Alex Simkin
22 Apr 2008
13:28 PM
Alex Simkin

Team? Poor Ayende is chained to the keyboard in a basement when Oren is traveling around and getting all the glory.

Krzysztof Koźmic
22 Apr 2008
13:34 PM
Krzysztof Koźmic

@Alex & @ Claudio

I knew it!

There are two of them. Or more! It's simply too much for one person to do:

Write the blog, write a book, go to conferences, help people on user groups, contribute to several OSS projects, record screencasts, have a life, sleep...

Claudio Figueiredo
23 Apr 2008
01:27 AM
Claudio Figueiredo

Ayende's a Borg? Did I hear it right?

"- Resistance is futile." :D

Benny Thomas
24 Apr 2008
08:57 AM
Benny Thomas

My next language will be Boo.

Igor Music
25 Apr 2008
16:15 PM
Igor Music

Now I’m interested in Boo.

I see that current DSL definition on Wikipedia has narrower definition (programming language) than I originally assumed.

For my purposes domain specific configuration schema (for example one describing mapping of system transactions to ledger accounts) is DSL as well as domain specific activities (in context of MS Workflow Foundation).

They are higher level languages for expressing domain knowledge.

Comment preview

Comments have been closed on this topic.

Markdown formatting

ESC to close

Markdown turns plain text formatting into fancy HTML formatting.

Phrase Emphasis

*italic*   **bold**
_italic_   __bold__

Links

Inline:

An [example](http://url.com/ "Title")

Reference-style labels (titles are optional):

An [example][id]. Then, anywhere
else in the doc, define the link:
  [id]: http://example.com/  "Title"

Images

Inline (titles are optional):

![alt text](/path/img.jpg "Title")

Reference-style:

![alt text][id]
[id]: /url/to/img.jpg "Title"

Headers

Setext-style:

Header 1
========
Header 2
--------

atx-style (closing #'s are optional):

# Header 1 #
## Header 2 ##
###### Header 6

Lists

Ordered, without paragraphs:

1.  Foo
2.  Bar

Unordered, with paragraphs:

*   A list item.
    With multiple paragraphs.
*   Bar

You can nest them:

*   Abacus
    * answer
*   Bubbles
    1.  bunk
    2.  bupkis
        * BELITTLER
    3. burper
*   Cunning

Blockquotes

> Email-style angle brackets
> are used for blockquotes.
> > And, they can be nested.
> #### Headers in blockquotes
> 
> * You can quote a list.
> * Etc.

Horizontal Rules

Three or more dashes or asterisks:

---
* * *
- - - - 

Manual Line Breaks

End a line with two or more spaces:

Roses are red,   
Violets are blue.

Fenced Code Blocks

Code blocks delimited by 3 or more backticks or tildas:

```
This is a preformatted
code block
```

Header IDs

Set the id of headings with {#<id>} at end of heading line:

## My Heading {#myheading}

Tables

Fruit    |Color
---------|----------
Apples   |Red
Pears	 |Green
Bananas  |Yellow

Definition Lists

Term 1
: Definition 1
Term 2
: Definition 2

Footnotes

Body text with a footnote [^1]
[^1]: Footnote text here

Abbreviations

MDD <- will have title
*[MDD]: MarkdownDeep

 

FUTURE POSTS

  1. NOT Sharding RavenDB Vector Search - 8 hours from now
  2. Optimizing the cost of clearing a set - 3 days from now
  3. Scaling HNSW in RavenDB: Optimizing for inadequate hardware - 5 days from now

There are posts all the way to May 14, 2025

RECENT SERIES

  1. RavenDB News (2):
    02 May 2025 - May 2025
  2. Recording (15):
    30 Apr 2025 - Practical AI Integration with RavenDB
  3. Production Postmortem (52):
    07 Apr 2025 - The race condition in the interlock
  4. RavenDB (13):
    02 Apr 2025 - .NET Aspire integration
  5. RavenDB 7.1 (6):
    18 Mar 2025 - One IO Ring to rule them all
View all series

RECENT COMMENTS

  • ถูกใจ ร้านนี้สุดๆ! อุปกรณ์ จาก inkspa pantip ทำให้ ผลงาน สวย จ้าง เสื้อ ทีม ได้ งาน ลงตัว ราคา คุ้ม ชวน ใคร อยากได้ ดีไซน...
    By ink-spa พันทิป on The null check that didn't check for nulls
  • But in case you have nullability checks enabled (i.e. `<Nullable>enable</Nullable>`), then you'll have a compiler warning on ...
    By Samyon Ristov on The null check that didn't check for nulls
  • Grok wasn't *wrong*. It only said that `_items` can't be null for the condition to evaluate to `true`, but didn't say anythi...
    By Johannes Egger on The null check that didn't check for nulls
  • When I started enabling NRT, I remember I was initially confused when all variables (for reference types) declared with `var`...
    By riccardo on The null check that didn't check for nulls
  • That is surprising - I think of var as a shorthand that does not affect the final result of the compilation. I wouldn't expec...
    By Chris B on The null check that didn't check for nulls

Syndication

Main feed Feed Stats
Comments feed   Comments Feed Stats
}