Questions have yet been addressed:
• Why not set classes like NcArray, NcIndex, NcIteratorIndex, NcArrayIterator as a default implementation. Keeping interfaces Array, Index, IteratorIndex and ArrayIterator permit plug-in developers having a specific implementation.
<Question about packaging>
• As the plug-in knows the meaning of the data structure, it could also be possible for it to generate a dictionary according to the instantiated Dataset.
In the GumTreeDataModel branch we have developed we set a new method in Group that permits to generate the dictionary on the fly.
<Still hard to decide how the API looks like>
• Class Container should be able to return the Group or DataItem object corresponding to the given key. Such a method permits collecting some more information belonging to a key. For instance scanning attributes, or getting DataItem in neighbourhood.
<Dictionary and container utilities can be in a higher layer of service. For example, in our plan we want to move the dictionary into a different package that depends on the GDM model, as well as the container service. >