BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  I Need a GOOD 3 Tier Example          BorlandTalk.com Forum Index -> Delphi Databases (Multi-Tier) View previous topic :: View next topic   Author Message Serre Guest Posted: Mon Feb 16, 2004 11:24 am    Post subject: I Need a GOOD 3 Tier Example Hi, I'm looking for a good 3-Tier example for Delphi 5 or 6. Especially really distributed (database, applicationserver and clients all on separate machines). I'm new on this matter, and though I worked with Interfaces in COM-dll's, it's not the same with remote datamodules on an applicationserver (I think). I got something working right now and it's 3 tier, but it's all on the same machine. My guess is that the Type Librarys are very important when it needs to be distributed?? Another thing I'm looking for, is how to keep track of the number of databaseconnections on the applicationserver (writing to a logfile each hour). Could someone get me started with a good example or weblink on this material? I would appreciate it very much. Thanks, Serge. --- posted by geoForum on http://delphi.newswhat.com Back to top Martin Stephenson Guest Posted: Mon Feb 16, 2004 8:43 pm    Post subject: Re: I Need a GOOD 3 Tier Example It sounds like you're almost there with it working on a single machine and you are correct about the type libraries. To move the client to another machine you need to take the type libraries to the client machine and register them there. You can register the type libraries using the windows utility REGSVR32 or the delphi supplied one TREGSVR (which you will find in Delphibin). If you are using COM+ middle tier then database connections will be created/pooled and freed for you as needed by COM+ (mts). We find COM+ works well for us with the same objects being used by GUI/ISAPI clients and will hopefully be adding webservices interfaces soon. Transaction management is also handled by COM+ for you. I'm sorry I cant provide more info at the moment, but I'll try forward you some links tomorrow when I'm at work Check out Dr Bobs site and borland site for more info on Delphi/COM+ Regards Martin. "Serre" <robert_in_2003 (AT) yahoo (DOT) com> wrote Quote: Hi, I'm looking for a good 3-Tier example for Delphi 5 or 6. Especially really distributed (database, applicationserver and clients all on separate machines). I'm new on this matter, and though I worked with Interfaces in COM-dll's, it's not the same with remote datamodules on an applicationserver (I think). I got something working right now and it's 3 tier, but it's all on the same machine. My guess is that the Type Librarys are very important when it needs to be distributed?? Another thing I'm looking for, is how to keep track of the number of databaseconnections on the applicationserver (writing to a logfile each hour). Could someone get me started with a good example or weblink on this material? I would appreciate it very much. Thanks, Serge. --- posted by geoForum on http://delphi.newswhat.com Back to top Martin Guest Posted: Tue Feb 17, 2004 11:15 am    Post subject: Re: I Need a GOOD 3 Tier Example This might help http://www.techvanguards.com/ This is the best site by far http://homepages.borland.com/ccalvert/TechPapers/Delphi/Transact.html http://www.microsoft.com/com/wpaper/mtscomp.asp http://www.blunck.info/comtrace.html "Serre" <robert_in_2003 (AT) yahoo (DOT) com> wrote Quote: Hi, I'm looking for a good 3-Tier example for Delphi 5 or 6. Especially really distributed (database, applicationserver and clients all on separate machines). I'm new on this matter, and though I worked with Interfaces in COM-dll's, it's not the same with remote datamodules on an applicationserver (I think). I got something working right now and it's 3 tier, but it's all on the same machine. My guess is that the Type Librarys are very important when it needs to be distributed?? Another thing I'm looking for, is how to keep track of the number of databaseconnections on the applicationserver (writing to a logfile each hour). Could someone get me started with a good example or weblink on this material? I would appreciate it very much. Thanks, Serge. --- posted by geoForum on http://delphi.newswhat.com Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         BorlandTalk.com Forum Index -> Delphi Databases (Multi-Tier) All times are GMT Page 1 of 1   Jump to: Select a forum C++ Builder Newsgroups----------------C++ BuilderC++ Builder (ActiveX)C++ Builder (Announcements)C++ Builder (Command Line Tools)C++ Builder DatabasesC++ Builder Databases (ADO)C++ Builder Databases (Desktop)C++ Builder Databases (InterBase Express)C++ Builder Databases (Multi-Tier)C++ Builder Databases (SQL Servers)C++ Builder (Graphics)C++ Builder (IDE)C++ Builder (Internet)C++ Builder (Internet Socket)C++ Builder (Internet Web)C++ Builder (Jobs)C++ Builder (Language)C++ Builder (Language C++)C++ Builder (Compatibility with MFC)C++ Builder (Native API)C++ Builder (Non-Technical)C++ Builder (Students)C++ Builder (Third Party Tools)C++ Builder (Upgrade)C++ Builder (VCL)C++ Builder (VCL Components Usage)C++ Builder (VCL Components Development)C++ Builder (VCL Usage)C++ Builder (WinAPI)C++ Builder Installation Delphi Newsgroups----------------Delphi (General)Delphi ActiveX Controls UsageDelphi ActiveX Controls DevelopmentDelphi As400Delphi DatabasesDelphi Databases (ADO)Delphi Databases (dbExpress)Delphi Databases (Desktop)Delphi Databases (InterBase Express)Delphi Databases (Multi-Tier)Delphi Databases (SQL Servers)Delphi DeploymentDelphi GraphicsDelphi IDEDelphi InternationalizationDelphi InternetDelphi Internet Isapi-WebBrokerDelphi Internet WebSnapDelphi Internet WinsockDelphi JobsDelphi Language BASMDelphi Language ObjectPascalDelphi Model Driven Architecture (General)Delphi Model Driven Architecture (Third Party)Delphi MultimediaDelphi Native APIDelphi Non-TechnicalDelphi ObjectPascalDelphi OLE AutomationDelphi OO designDelphi OpenToolsAPIDelphi Reporting-ChartingDelphi RTLDelphi StudentsDelphi TeamSourceDelphi Thirdparty ToolsDelphi Thirdparty Tools (General)Delphi Thirdparty Tools (IntraWeb)Delphi Thirdparty Tools (RaveReports)Delphi UpgradeDelphi VCLDelphi VCL ComponentsDelphi VCL Components UsingDelphi VCL Components WritingDelphi WebServices SOAPDelphi WinAPIDelphi XMLDelphi Installationcomp.lang.pascal.delphi.components.misccomp.lang.pascal.delphi.components.usagecomp.lang.pascal.delphi.components.writingcomp.lang.pascal.delphi.databasescomp.lang.pascal.delphi.misccomp.sources.delphi JBuilder Newsgroups----------------JBuilderJBuilder AnnouncementsJBuilder Applet IssuesJBuilder As400JBuilder CompilerJBuilder CORBA/RMIJBuilder DatabasesJBuilder DB SwingJBuilder DebuggerJBuilder DeploymentJBuilder DocumentationJBuilder EnterpriseJBuilder HandheldJBuilder IDEJBuilder JavaJBuilder JavaAPIJBuilder Java LanguageJBuilder Java SwingJBuilder Java BeansJBuilder Java Beans UsageJBuilder Java Beans DevelopmentJBuilder JBCLJBuilder JDataStoreJBuilder JobsJBuilder LinuxJBuilder MacintoshJBuilder & MobileSetJBuilder MultiLingual AppsJBuilder Non-TechnicalJBuilder OpenToolsJBuilder Servlets (JSP)JBuilder StudentsJBuilder Team DevelopmentJBuilder Thirdparty ToolsJBuilder UpgradeJBuilder Installation InterBase Newsgroups----------------InterBaseInterBase Bug DiscussionInterBase GeneralInterBase IBConsoleInterBase OpenSourceInterBase ReplicationInterBase SQLInterBase ThirdpartyInterBase Installation Miscellaneous Borland Newsgroups----------------AppCenterAppServerEnteraVisiBroker  You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum Powered by phpBB © 2001, 2006 phpBB Group SEO toolkit © 2004-2006 webmedic.