<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
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</o:shapelayout></xml><![endif]--></head><body lang=PT-BR link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span style='mso-fareast-language:EN-US'>Hi Jackie,<o:p></o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'>I receive several read only shapes files in a timely way (5 minutes), and my app has a timer (10 seconds) that continually is showing those files at 5 minutes range, but very often there is no file to show. So, it causes a FDO error. I also notice an continually increase of mapguide server memory usage, maybe because of this error. <o:p></o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'>I must keep this layer visible to appear in my custom layer control of visibility (or maybe there is another way to do it?).<o:p></o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:10.0pt;color:navy'>Regards,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;color:navy'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;color:navy'> Liglio </span><span style='color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b>De:</b> mapguide-users <mapguide-users-bounces@lists.osgeo.org> <b>Em nome de </b>Jackie Ng<br><b>Enviada em:</b> quarta-feira, 24 de junho de 2020 06:45<br><b>Para:</b> mapguide-users@lists.osgeo.org<br><b>Assunto:</b> Re: [mapguide-users] Shape Layer Issue<o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>Hi Liglio,<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Are you continually updating the shape files underneath or doing any other concurrent read/write access to these files?<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>If so, then you should reconsider the use of SHP files for this kind of scenario and loading the data into a relational database, which is designed for such multi-user concurrent access.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>- Jackie<o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm'><p class=MsoNormal>Hi, <o:p></o:p></p></blockquote><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm'><p class=MsoNormal> <o:p></o:p></p></blockquote><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm'><p class=MsoNormal>I have a shape layer that I programatically point to shape files using the<br>feature source, continually in a timer. But sometimes there is not a file to show, and the layer must have the<br>attribute visible = true.<o:p></o:p></p></blockquote><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm'><p class=MsoNormal> <o:p></o:p></p></blockquote><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm'><p class=MsoNormal>When this occurs I got an error in the log file ("The specified class was<br>not found."). There is something I can do to avoid this error ?<o:p></o:p></p></blockquote><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm'><p class=MsoNormal> <o:p></o:p></p></blockquote><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm'><p class=MsoNormal>Regards,<o:p></o:p></p></blockquote><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm'><p class=MsoNormal> <o:p></o:p></p></blockquote><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm'><p class=MsoNormal>Liglio<o:p></o:p></p></blockquote><div><p class=MsoNormal><o:p> </o:p></p></div></div></div></body></html>