On May 23, 2011, at 11:09 AM, Sanatan Rai wrote: > On 23 May 2011 16:00, Michael Wild <them...@gmail.com> wrote: >> Everything that relies on static/global initialization to register >> factories is an implicit scheme. An explicit scheme is where the >> dependent code (e.g. the main() function) calls a function to do the >> registration. > > Ok, got you. However, would this not imply a monolithic build? How is > main to know that an object of a type belonging to a base class of interest > exists in linked library? > > As I mentioned earlier, I did this a little more explicitly in a > .NET project in the following > manner: > > * I had a factory object, whose job it was to hold creator functions > for objects of classes > derived from a base class of interest. > > * The factory was a singleton, and had a static method that could be > called. The method loaded > all linked assemblies, and picked out classes that were derived > from the base class. > > * Then it explicitly registered the class with the factory. > > This seems to me to be a hybrid between implicit and explicit > registration. The actual mechanics > as one might imagine relied heavily on .NET reflection calls. One of > the ugliest bits of code I have > ever written. > > --Sanatan
Take a look at http://scm.bluequartz.net/mxa/mxadatamodel/trees/master/Code/MXA/DataImport for an example of how I did this in one of my older projects. The code that ties this together is then in http://scm.bluequartz.net/mxa/mxadatamodel/blobs/master/Examples/DataImport/main.cpp This should short enough for you to follow along. I am not saying mine is the utopian example but it does work. Mike Jackson _______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake
