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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>Hi all,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>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></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span class=Heading2Char><span style='font-size:13.0pt'>Context</span></span>:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I wish to evaluate Gemstone/S at first for some more tangential needs that are currently targeted for Mongo.<o:p></o:p></p><p class=MsoNormal>Our core product actually runs over Oracle and soon over any RDMS but for practical purposes we are targetting Postgres.<o:p></o:p></p><p class=MsoNormal>However, potentially the bigger need.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>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></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>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></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Anyhow, to cut to the chase.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span class=Heading2Char><span style='font-size:13.0pt'>Objectives</span></span>:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I’m not interested in building a Seaside app that uses Gemstone for its persistence.<o:p></o:p></p><p class=MsoNormal>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></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>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. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>So:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><ol style='margin-top:0in' start=1 type=1><li class=MsoListParagraph style='margin-left:0in;mso-list:l0 level1 lfo1'>How do I talk to Gemstone from Pharo ? <o:p></o:p></li><ol style='margin-top:0in' start=1 type=a><li class=MsoListParagraph style='margin-left:0in;mso-list:l0 level2 lfo1'>I believe that Zinc can actually run on Gemstone so json/http(s) would be one way ? Any other way ? best way ?<o:p></o:p></li></ol><li class=MsoListParagraph style='margin-left:0in;mso-list:l0 level1 lfo1'>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></o:p></li><ol style='margin-top:0in' start=1 type=a><li class=MsoListParagraph style='margin-left:0in;mso-list:l0 level2 lfo1'>Is there a web socket implementation?<o:p></o:p></li><li class=MsoListParagraph style='margin-left:0in;mso-list:l0 level2 lfo1'>Any other messaging implementation ? MQTT ? RabbitMQ etc ? <o:p></o:p></li></ol><li class=MsoListParagraph style='margin-left:0in;mso-list:l0 level1 lfo1'>GemConnect / Postgres , would there be a separate additional license fee ?<o:p></o:p></li><li class=MsoListParagraph style='margin-left:0in;mso-list:l0 level1 lfo1'>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></o:p></li><li class=MsoListParagraph style='margin-left:0in;mso-list:l0 level1 lfo1'>I assume that for development use that one can install Gemstone under WSL ? If so any issues to be aware of ?<o:p></o:p></li><li class=MsoListParagraph style='margin-left:0in;mso-list:l0 level1 lfo1'>Sparkle is the new IDE ? but I see there’s also IoDE ? <o:p></o:p></li></ol><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>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 ? <o:p></o:p></p><p class=MsoNormal>A cursory review of the Glass posts seem Seaside centric.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks in advance, <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><b><span style='font-family:"Arial",sans-serif'>Charles A. Monteiro<br>Chief Technology Officer<br>Datasoft, Inc<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-family:"Arial",sans-serif'>Phone: 347-853-7349<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-family:"Arial",sans-serif'>Web:<a href="http://www.tradeblazer.com"><span style='color:blue'>tradeblazer.com</span></a><o:p></o:p></span></b></p><p class=MsoNormal><img border=0 width=191 height=48 style='width:1.9895in;height:.5in' id="Picture_x0020_2" src="cid:image001.png@01D80C4D.0EDFC230"><b><span style='font-family:"Arial",sans-serif'><o:p></o:p></span></b></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>