<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><meta http-equiv="Content-Type" content="text/html; charset=utf-8" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hi Charles,<div class=""><br class=""></div><div class="">In response to your specific question:</div><div class=""><br class=""></div><div class="">1. To talk to GemStone from Pharo you can use the GCI library (with something like SparkleFFI (<a href="https://github.com/GemTalk/SparkleFFI" class="">https://github.com/GemTalk/SparkleFFI</a>) or something that talks directly to a Gem that has its own API (such as <a href="https://github.com/jgfoster/WebGS" class="">https://github.com/jgfoster/WebGS</a>).</div><div class=""><br class=""></div><div class="">2. A Gem can be notified if an object changes and then it could notify a client. I believe that RemoteServiceReplication (<a href="https://github.com/GemTalk/RemoteServiceReplication" class="">https://github.com/GemTalk/RemoteServiceReplication</a>) will (eventually) provide synchronization between GemStone and Pharo, but I’m not able to answer questions about it. With respect to supporting Web Sockets, WebGS (see #1) does have that capability. I’m not aware of any other messaging implementations.</div><div class=""><br class=""></div><div class="">3. As noted by others, GemConnect for Postgres (<a href="https://github.com/GemTalk/GemConnect-for-Postgres" class="">https://github.com/GemTalk/GemConnect-for-Postgres</a>) is available under the MIT license.</div><div class=""><br class=""></div><div class="">4. The performance for MFC has _vastly_ improved. A job that took several days can now be done in a few hours with minimal disruption on regular operation. It is now very realistic to plan for 24x7 uptime (I understand that one customer schedules 1 day per year of downtime for upgrades, etc.).</div><div class=""><br class=""></div><div class="">5. GemStone runs fine under WSL 2. It runs under WSL 1 but required a special keyfile to get around WSL 1 bugs.</div><div class=""><br class=""></div><div class="">6. For an IDE you can use Topaz (for old-school vim/gdb users), GBS (if you have a license for VA or VW), Jadeite (<a href="https://github.com/GemTalk/Jadeite" class="">https://github.com/GemTalk/Jadeite</a> or its predecessor, Jade (<a href="https://github.com/jgfoster/Jade" class="">https://github.com/jgfoster/Jade</a>)), or experiment with Sparkle (<a href="https://github.com/GemTalk/Sparkle" class="">https://github.com/GemTalk/Sparkle</a>). To learn more about Sparkle I suggest you watch Martin McClure’s upcoming presentation (<a href="https://www.meetup.com/UKSTUG/events/282299228/" class="">https://www.meetup.com/UKSTUG/events/282299228/</a>).</div><div class=""><br class=""></div><div class="">James</div><div class=""><br class=""><div class=""><br class=""><blockquote type="cite" class=""><div class="">On Jan 18, 2022, at 7:03 AM, Charles Monteiro via Glass <<a href="mailto:glass@lists.gemtalksystems.com" class="">glass@lists.gemtalksystems.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="WordSection1" style="page: WordSection1; caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;"><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Hi all,<o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Not sure if this is the right spot to ask,let me know if not, this is more of sales evaluation i.e. that’s the intent.<o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span class="Heading2Char" style="font-family: "Calibri Light", sans-serif; color: rgb(47, 84, 150);"><span style="font-size: 13pt;" class="">Context</span></span>:<o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">I wish to evaluate Gemstone/S at first for some more tangential needs that are currently targeted for Mongo.<o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Our core product actually runs over Oracle and soon over any RDMS but for practical purposes we are targetting Postgres.<o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">However, potentially the bigger need.<o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">From my FPL and Brooklyn Union Gas days I became quite familiar with using GemBuilder for VW however instead I want to engage Gemstone from Pharo and I understand that not to work the same way.<o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Recently , (yesterday) I discovered Sparkle which led me to discovering SparkleFFI , so there’s apparently some efforts under way to provide comm from Pharo to Gemstone i.e. more akin to Gembuilder/VW.<o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Anyhow, to cut to the chase.<o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span class="Heading2Char" style="font-family: "Calibri Light", sans-serif; color: rgb(47, 84, 150);"><span style="font-size: 13pt;" class="">Objectives</span></span>:<o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">I’m not interested in building a Seaside app that uses Gemstone for its persistence.<o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Rather, very thin , quite dumb Svelte/JS UIs will talk to Pharo microservice(s) which in turn will talk to Gemstone i.e. that’s the hope.<o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">I would prefer some rpc mechanism where transaction boundaries are controlled from Pharo but I”ll be happy with whatever mechanism I can use to pass objects to Gemstone.<span class="Apple-converted-space"> </span><o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">So:<o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><ol start="1" type="1" style="margin-bottom: 0in; margin-top: 0in;" class=""><li class="MsoListParagraph" style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;">How do I talk to Gemstone from Pharo ?<span class="Apple-converted-space"> </span><o:p class=""></o:p></li><ol start="1" type="a" style="margin-bottom: 0in; margin-top: 0in;" class=""><li class="MsoListParagraph" style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;">I believe that Zinc can actually run on Gemstone so json/http(s) would be one way ? Any other way ? best way ?<o:p class=""></o:p></li></ol><li class="MsoListParagraph" style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;">Is there a notification / push mechanism now in place e.g. change to a Gemstone collection could be notified to interested parties (Pharo)<o:p class=""></o:p></li><ol start="1" type="a" style="margin-bottom: 0in; margin-top: 0in;" class=""><li class="MsoListParagraph" style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;">Is there a web socket implementation?<o:p class=""></o:p></li><li class="MsoListParagraph" style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;">Any other messaging implementation ? MQTT ? RabbitMQ etc ?<span class="Apple-converted-space"> </span><o:p class=""></o:p></li></ol><li class="MsoListParagraph" style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;">GemConnect / Postgres , would there be a separate additional license fee ?<o:p class=""></o:p></li><li class="MsoListParagraph" style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;">Has the performance of markForCollection changed much in all of these years i.e. does one have to allocate downtime ? i.e. what if the app actually needed to run 24x7, what are the accommodations for said scenario under current Gemstone/S.<o:p class=""></o:p></li><li class="MsoListParagraph" style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;">I assume that for development use that one can install Gemstone under WSL ? If so any issues to be aware of ?<o:p class=""></o:p></li><li class="MsoListParagraph" style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;">Sparkle is the new IDE ? but I see there’s also IoDE ?<span class="Apple-converted-space"> </span><o:p class=""></o:p></li></ol><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Finally , given all of the above , and never mind Gemstone/ S setup itself , is there some doc that illustrates a simple hello world scenario where a Pharo image is sending to Gemstone objects for persistence ?<span class="Apple-converted-space"> </span><o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">A cursory review of the Glass posts seem Seaside centric.<o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Thanks in advance,<span class="Apple-converted-space"> </span><o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><b class=""><span style="font-family: Arial, sans-serif;" class="">Charles A. Monteiro<br class="">Chief Technology Officer<br class="">Datasoft, Inc<o:p class=""></o:p></span></b></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><b class=""><span style="font-family: Arial, sans-serif;" class="">Phone: 347-853-7349<o:p class=""></o:p></span></b></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><b class=""><span style="font-family: Arial, sans-serif;" class="">Web:<a href="http://www.tradeblazer.com/" class=""><span style="color: blue;" class="">tradeblazer.com</span></a><o:p class=""></o:p></span></b></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span id="cid:image001.png@01D80C4D.0EDFC230" class=""><image001.png></span><b class=""><span style="font-family: Arial, sans-serif;" class=""><o:p class=""></o:p></span></b></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div></div><span style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;" class="">_______________________________________________</span><br style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><span style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;" class="">Glass mailing list</span><br style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><a href="mailto:Glass@lists.gemtalksystems.com" style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" class="">Glass@lists.gemtalksystems.com</a><br style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><a href="https://lists.gemtalksystems.com/mailman/listinfo/glass" style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" class="">https://lists.gemtalksystems.com/mailman/listinfo/glass</a></div></blockquote></div><br class=""></div></div></body></html>