Re: [api-dev] Updating extensions
Could you give more detail (scenario, programming language)? Maybe a code example?. Joachim Patrick Bernard wrote: Hello Updating an extension while it is used by OpenOffice.org can wreak havoc if the extension uses global variables. Is there a way to avoid this problem ? Patrick - To unsubscribe, e-mail: dev-unsubscr...@api.openoffice.org For additional commands, e-mail: dev-h...@api.openoffice.org - To unsubscribe, e-mail: dev-unsubscr...@api.openoffice.org For additional commands, e-mail: dev-h...@api.openoffice.org
Re: [api-dev] Updating extensions
The scenario is the following : when OOo is started, the extension (which is written in C++) uses the OnStartApp event to initialize global variables. However, if the extension is updated while OOo is running, the code and the global variables are replaced with the ones from the new version of the extension. The global variables are thus left uninitialized. More generally, installing an extension while OOo is running may lead to problems, since the extension may rely on the OnStartApp event to initialize itself. However, when the extension is installed, the event is not fired and the state of the extension is inconsistent. Clearly, there can be a contradiction between allowing extensions to catch events when OOo is started, and allowing the user to add extensions to a running OOo and to use them immediately. There should at least a way to tell OOo that the newly installed extension can be used only when OOo is restarted. Patrick Le lundi 26 avril 2010, Joachim Lingner a écrit : > Could you give more detail (scenario, programming language)? Maybe a > code example?. > > Joachim > > Patrick Bernard wrote: > > Hello > > > > > > Updating an extension while it is used by OpenOffice.org can wreak havoc > > if the extension uses global variables. Is there a way to avoid this > > problem ? > > > > > > Patrick > > > > - > > To unsubscribe, e-mail: dev-unsubscr...@api.openoffice.org > > For additional commands, e-mail: dev-h...@api.openoffice.org > > - > To unsubscribe, e-mail: dev-unsubscr...@api.openoffice.org > For additional commands, e-mail: dev-h...@api.openoffice.org - To unsubscribe, e-mail: dev-unsubscr...@api.openoffice.org For additional commands, e-mail: dev-h...@api.openoffice.org
Re: [api-dev] Updating extensions
Patrick , Why not using "com.sun.star.configuration.ConfigurationProvider" to store your global variables ? I learned from Danny B. and uses it mostyl to store some Pathsettings who must een remembered by opening and closing some Dialogs. Your new exention can check if the "data" writen by the previous is the correct version ? Give a hint and i can post a small Basic Module to do the job Fernand The scenario is the following : when OOo is started, the extension (which is written in C++) uses the OnStartApp event to initialize global variables. However, if the extension is updated while OOo is running, the code and the global variables are replaced with the ones from the new version of the extension. The global variables are thus left uninitialized. More generally, installing an extension while OOo is running may lead to problems, since the extension may rely on the OnStartApp event to initialize itself. However, when the extension is installed, the event is not fired and the state of the extension is inconsistent. Clearly, there can be a contradiction between allowing extensions to catch events when OOo is started, and allowing the user to add extensions to a running OOo and to use them immediately. There should at least a way to tell OOo that the newly installed extension can be used only when OOo is restarted. Patrick Le lundi 26 avril 2010, Joachim Lingner a écrit : Could you give more detail (scenario, programming language)? Maybe a code example?. Joachim Patrick Bernard wrote: Hello Updating an extension while it is used by OpenOffice.org can wreak havoc if the extension uses global variables. Is there a way to avoid this problem ? Patrick - To unsubscribe, e-mail: dev-unsubscr...@api.openoffice.org For additional commands, e-mail: dev-h...@api.openoffice.org - To unsubscribe, e-mail: dev-unsubscr...@api.openoffice.org For additional commands, e-mail: dev-h...@api.openoffice.org - To unsubscribe, e-mail: dev-unsubscr...@api.openoffice.org For additional commands, e-mail: dev-h...@api.openoffice.org - To unsubscribe, e-mail: dev-unsubscr...@api.openoffice.org For additional commands, e-mail: dev-h...@api.openoffice.org
Re: [api-dev] Updating extensions
It wouldn't be possible, because it would be completely ineffective. Patrick Le lundi 26 avril 2010, Fernand Vanrie a écrit : > Patrick , > > Why not using "com.sun.star.configuration.ConfigurationProvider" to > store your global variables ? > I learned from Danny B. and uses it mostyl to store some Pathsettings > who must een remembered by opening and closing some Dialogs. > Your new exention can check if the "data" writen by the previous is the > correct version ? > Give a hint and i can post a small Basic Module to do the job > > Fernand > > > The scenario is the following : when OOo is started, the extension (which > > is written in C++) uses the OnStartApp event to initialize global > > variables. However, if the extension is updated while OOo is running, the > > code and the global variables are replaced with the ones from the new > > version of the extension. The global variables are thus left > > uninitialized. > > > > More generally, installing an extension while OOo is running may lead to > > problems, since the extension may rely on the OnStartApp event to > > initialize itself. However, when the extension is installed, the event is > > not fired and the state of the extension is inconsistent. > > > > Clearly, there can be a contradiction between allowing extensions to > > catch events when OOo is started, and allowing the user to add extensions > > to a running OOo and to use them immediately. There should at least a way > > to tell OOo that the newly installed extension can be used only when OOo > > is restarted. > > > > > > Patrick > > > > Le lundi 26 avril 2010, Joachim Lingner a écrit : > >> Could you give more detail (scenario, programming language)? Maybe a > >> code example?. > >> > >> Joachim > >> > >> Patrick Bernard wrote: > >>> Hello > >>> > >>> > >>> Updating an extension while it is used by OpenOffice.org can wreak > >>> havoc if the extension uses global variables. Is there a way to avoid > >>> this problem ? > >>> > >>> > >>> Patrick > >>> > >>> - > >>> To unsubscribe, e-mail: dev-unsubscr...@api.openoffice.org > >>> For additional commands, e-mail: dev-h...@api.openoffice.org > >> > >> - > >> To unsubscribe, e-mail: dev-unsubscr...@api.openoffice.org > >> For additional commands, e-mail: dev-h...@api.openoffice.org > > > > - > > To unsubscribe, e-mail: dev-unsubscr...@api.openoffice.org > > For additional commands, e-mail: dev-h...@api.openoffice.org > > - > To unsubscribe, e-mail: dev-unsubscr...@api.openoffice.org > For additional commands, e-mail: dev-h...@api.openoffice.org - To unsubscribe, e-mail: dev-unsubscr...@api.openoffice.org For additional commands, e-mail: dev-h...@api.openoffice.org
