Sylvain Wallez wrote: > > > >The problem is, if you are using getInputStream/getOutputSteam to copy > >a file in a slide repository, that all metadata informations get lost. On > >the other hand, if you are using an external SourceUtil to copy a file, > >you can't hide all implementation details. > > > > > > Ah, I got it now : if the copied/moved source is of the same type than > the "source" source, then some optimisations are possible (like the > above or direct filesystem copy), else we fallback to a generic > getInputStream/getOutputStream implementation, right ? > > So it makes sense after all to keep them on the > [Modifiable/Writeable/Whatever]Source > No, I don't think so (sorry, I have to do this :) )
Now, think if an implementation for copy(). Each Source implementation must test if the destination is the same source implementation or not. If not use IS/OS if yes use optimized etc. So, if we are using these "marker" interfaces for all other parts, I really think we should add a "MoveableSource" (substitute the name if you like) and have an utility class check if: a) both sources have the same implementation and b) implement MoveableSource If both is answered with yes, this can be used - if not the utility class uses IS/OS copying. It's the magic of SoC - if a source is not interested in move/copy it should not have to care about it. Carsten --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED]
