Thursday, February 26, 2015

how to maintain a list of static class and the instanciate from them
































hello,
































I have a list of uninstanciated class types and I wanted to call a static function from these































"Class<? extends PropControl>" (without using reflection) that would create a new corresponding object instance































but it appears I cant do that in java
































so now I want to create a factory that takes a class type as aparameter to create the corresponding object instance
































but this code dont compile:
















































Java Code:





































public PropControl Create(Class<? extends PropControl> cls)
{
if(cls==HouseControl.class) <---- ERROR
{
here I create a new instance of HouseControl (that inherits PropControl)
}
}



































I get this error :















incomparable types: Class<CAP#1> and Class<HouseControl>































where CAP#1 is a fresh type-variable:































CAP#1 extends PropControl from capture of ? extends PropControl
































how do I achieve this ?
































thanks































































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