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Is it possible to use clusters in clusters with orientdb?

I was going through the OrientDB tutorial yesterday and think it looked really promising.

I like the possibility to add entities to different clusters and my question is if it is possible to have a hierarchy of clusters?

As an example, if I add a User to the cluster California I would like it to also be a part of the cluster USA without having to specifically add it to that cluster.

I am thinking about clusters as a way to divide data in sets and subsets, but maybe that is wrong?

Solution

  • This is what Classes are. You have real inheritance between classes, so querying a base class will give you all the instances of that class and its subclasses.

    Clusters are a more physical concepts, think to them like a file or a table. A Class uses one or more clusters to store instances.