Ayende @ Rahien

Oren Eini aka Ayende Rahien CEO of Hibernating Rhinos LTD, which develops RavenDB, a NoSQL Open Source Document Database.

You can reach me by:

oren@ravendb.net

+972 52-548-6969

Posts: 7,018 | Comments: 49,709

filter by tags archive

architecture (416) rss
bugs (391) rss
challanges (91) rss
community (270) rss
databases (339) rss
design (726) rss
development (463) rss
hibernating-practices (38) rss
humor (170) rss
miscellaneous (586) rss
performance (314) rss
programming (933) rss
raven (1145) rss
ravendb.net (113) rss
reviews (180) rss

2020
- 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)

Mar 31 2008

The Illustrated Design Patterns Spotter Guide

time to read 1 min | 22 words

What is the name of the pattern here?

QuoteGeneratorRule.Evaluate()
RoutingBase.Route()
AuthorizationRule.CheckAuthorization()

Tweet Share Share 16 comments

Tags:

Challanges

Comments

30 Mar 2008
23:32 PM

Pyotr

Front Controller with Command Pattern?

31 Mar 2008
00:35 AM

Anon

Smugness?

31 Mar 2008
00:49 AM

Adam V.

The SomethingDoer-DoIt pattern?

31 Mar 2008
06:15 AM

Yuri

delegate?

31 Mar 2008
06:16 AM

Ian

Pyotr, now you're just making stuff up.

31 Mar 2008
06:57 AM

Reshef

Looks like "Tell, don't ask" but this is more a principle than a pattern...

31 Mar 2008
07:56 AM

Robert

It looks like a strategy for me

31 Mar 2008
08:51 AM

Terry

This is the "Command Pattern", no? I seem to have at least one of these per project.

31 Mar 2008
10:12 AM

Ayende Rahien

Terry,

Yes, absolutely.

31 Mar 2008
10:33 AM

Ken Egozi

I'm with Adam

31 Mar 2008
13:58 PM

Jeremy Wiebe

Singleton
Singleton
Singleton

;-)

31 Mar 2008
13:58 PM

Doug Ferguson

Strategy pattern.

31 Mar 2008
19:56 PM

Mohan Kumar

Chain of Responsibility

31 Mar 2008
20:20 PM

Dave Foley

I agree with Doug, especially if the concrete types are resolved based on some other business rules (i.e. a different strategy is used based on some different criteria).

01 Apr 2008
17:08 PM

Manuel Martone

Singleton!!!!!

02 Apr 2008
15:45 PM

abe

HAHAHA! Smug pattern!

Comment preview

Comments have been closed on this topic.

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

No future posts left, oh my!

RECENT SERIES

Podcast (2):
28 May 2020 - Adventures in .NET High performance databases with RavenDB with Oren Eini
Webinar recording (4):
25 May 2020 - Event sourcing and RavenDB
Talk (5):
23 Apr 2020 - Advanced indexing with RavenDB
Challenge (57):
21 Apr 2020 - Generate matching shard id–answer
Production postmortem (29):
23 Mar 2020 - high CPU when there is little work to be done

View all series

Syndication

Main feed
Comments feed