Hello Raster, On Thu, Jun 19, 2014 at 12:20 PM, Carlos Carvalho <ccarva...@expertisesolutions.com.br> wrote: > Hi raster :) > > please see below. > > On Thu, Jun 19, 2014 at 4:09 AM, Carsten Haitzler <ras...@rasterman.com> > wrote:
> > can i recommend we have a path property you can > > set AND get? so you can create an empty eio model and then point it to a > > path? > > cleaner. a custom constructor is fine but we eventually want to get rid of > > them > > or as many as we can. > > Making a generic constructor I don't know if would make much sense because > of different implementations for emodel. But we're are very open to change > this if you think it is a good idea os have something in mind I don't though > about. This was dicussed some times here and I felt a default-constructor is going to make implementations of the model much harder and more confusing. Why? Because the backend needs information to create a new child and each backend needs a different information. So, the backend has to choose between two options: use default, arbitrary, information; or delay backend instantiation until it has enough information, returning a "zombie" child. Both options are bad. The first needs to guess arbitrary, valid, information and might very well corrupt the concrete data with random information (e.g., finantial database with default-constructed items). The second doesn't commit to disk until enough information is given, which means that data might be inadvertently lost and requires a branch for each function called (do I get this property from disk or from a temporary hash?), which doubles the implementation's size (for smaller implementations). And, it is not really generic anyway, you still need to know which information is necessary for each kind of child. But, we could have a efl_child_addable interface (not loving the name, but you get the idea) for models that decide to implement a child_add function for use with generic views. > -- > Expertise Solutions Kind regards, -- Felipe Magno de Almeida ------------------------------------------------------------------------------ HPCC Systems Open Source Big Data Platform from LexisNexis Risk Solutions Find What Matters Most in Your Big Data with HPCC Systems Open Source. Fast. Scalable. Simple. Ideal for Dirty Data. Leverages Graph Analysis for Fast Processing & Easy Data Exploration http://p.sf.net/sfu/hpccsystems _______________________________________________ enlightenment-devel mailing list enlightenment-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/enlightenment-devel
