Interface TreeBuilder

All Known Implementing Classes:
TreeBuilderImpl

public interface TreeBuilder
TODO What if we want to express mandatory attributes in the projection? In that case, this actually translates to a restriction on the concept - i.e. exists(role, top) So maybe the projection builder operates on top of a concept builder? Also, we want to express that whole sub-trees are optional - the question is, whether this is done on a per-relation level, or per node level. Actually we want to express the modality of a certain property.
Author:
raven