<div class="gmail_quote">Hi there -<br>For what it's worth, I've attempted to write up something about data representation in Erlang - aimed at people who know programming (e.g. in an OOP language), but are uncertain about how to do it in Erlang.<br>
<br>Simple data structures are treated in this text:<br> <a href="https://github.com/eriksoe/AGttES/blob/master/DataStructures.asciidoc" target="_blank">https://github.com/eriksoe/AGttES/blob/master/DataStructures.asciidoc</a><br>
<br>And this is an "Erlang modelling for OOP programmers" intro:<br>
<a href="https://github.com/eriksoe/AGttES/blob/master/OOP.asciidoc" target="_blank">https://github.com/eriksoe/AGttES/blob/master/OOP.asciidoc</a><br>(This one has been less well rendered by Github, alas; you can run it through asciidoc or ask me for a better HTML version.)<br>
<br>There are many ways to represent an object in Erlang, depending on its nature.<br>I've tried to sum up the possibilities here, in the form of a table showing when you can use which options:<br> <a href="https://github.com/eriksoe/AGttES/blob/master/OOP-overview.asciidoc" target="_blank">https://github.com/eriksoe/AGttES/blob/master/OOP-overview.asciidoc</a><br>
<br>I'm afraid it's still work-in-progress - I'd be very interested in hearing about both anything that appears to be wrong or incomplete, and any questions it leaves unanswered.<br><br>Hoping this might help.<br>
/Erik<br><br><br><div class="gmail_quote">Den 12. apr. 2012 10.39 skrev Ilyushonak Barys <span dir="ltr"><<a href="mailto:Barys_Ilyushonak@troika.ru" target="_blank">Barys_Ilyushonak@troika.ru</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div link="blue" vlink="purple" lang="RU">
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<p class="MsoNormal"><span style="font-size:12.0pt" lang="EN-US">Hello, community<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt" lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt" lang="EN-US">I’m looking for the best way to represent my domain model in Erlang.
<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt" lang="EN-US">I use market information – trades, orders, etc. I would like to do the following:<u></u><u></u></span></p>
<p><u></u><span style="font-size:12.0pt" lang="EN-US"><span>1.<span style="font:7.0pt "Times New Roman"">
</span></span></span><u></u><span style="font-size:12.0pt" lang="EN-US">Create structure and fill it with the data<u></u><u></u></span></p>
<p><u></u><span style="font-size:12.0pt" lang="EN-US"><span>2.<span style="font:7.0pt "Times New Roman"">
</span></span></span><u></u><span style="font-size:12.0pt" lang="EN-US">Access specific fields/keys values for implementing business requirements
<u></u><u></u></span></p>
<p><u></u><span style="font-size:12.0pt" lang="EN-US"><span>3.<span style="font:7.0pt "Times New Roman"">
</span></span></span><u></u><span style="font-size:12.0pt" lang="EN-US">Translate (serialize) the data to external systems (socket, xml, text)<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt" lang="EN-US">Actually, I need a good programming structures to work with.
<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt" lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt" lang="EN-US">As I see there are two kind of data structures:<u></u><u></u></span></p>
<p><u></u><span style="font-size:12.0pt" lang="EN-US"><span>1.<span style="font:7.0pt "Times New Roman"">
</span></span></span><u></u><span style="font-size:12.0pt" lang="EN-US">Records<u></u><u></u></span></p>
<p><u></u><span style="font-size:12.0pt" lang="EN-US"><span>2.<span style="font:7.0pt "Times New Roman"">
</span></span></span><u></u><span style="font-size:12.0pt" lang="EN-US">Key-Value storage – proplist, dict<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt" lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt" lang="EN-US">The question.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt" lang="EN-US">Is there any kind of best practice or design patterns in Erlang how may it be implemented?<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt" lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt" lang="EN-US">I’m from OOP world. Maybe I miss something and I should change the way I see it? I have googled it, and can’t find the best answer.
<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt" lang="EN-US">Could you please share some info about this theme in Erlang?
<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt" lang="EN-US">Also please let me know if this theme is holy war.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt" lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt" lang="EN-US">Best Regards,<u></u><u></u></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt" lang="EN-US">Barys Ilyushonak<u></u><u></u></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt" lang="EN-US">Information Technology Division, Troika Dialog</span><span style="font-size:12.0pt"><u></u><u></u></span></p>
<p class="MsoNormal"><u></u> <u></u></p>
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