what is the best Solution for mapping class object to lightweight class object by example:
Customer to CustomerDTO both have the same properties names, i was thinking of the best optimized solution for mapping between them , i know reflection slow me down badly , and making methods for every mapping is time consuming so any idea ?
thanks in advance.
I've been playing about with this, and have the following observations. Should Customer inherit from CustomerDTO or read/write to a CustomerDTO? I've found that some DTO generators only generate dumb fixed size array collections for vectors of data items within the DTO others will allow you to specify a LIST<> or some such collection. The high-level collection does not need to appear in the serialised DTO but effects which approach you take. If your solution adds high-level collections then you can inherit if it doesn't then you probably want to read/write to a intermediate DTO.
I've used Protocol Buffers and XSDObjectGenerator for my DTO Generation (at different times!).
If reflection is slowing you down too much, try Fasterflect: http://www.codeproject.com/KB/library/fasterflect_.aspx
If you use the caching mechanism, it is not much slower than hand-written code.