> On 7 Feb 2017, at 11:17, Gunnar Morling <gun...@hibernate.org> wrote:
> 
> Emmanuel,
> 
> In your PoC, how would a complete tree-like structure be traversed?
> It's not clear to me, who is driving StructureTraverser, i.e. which
> component will call processSubstructureInContainer() et al. when
> traversing an entire tree.

The metadata you have about which entity and property is indexed will drive the 
traversal. In case of HV, the metadata about which entity / property is 
constrained will.
The metadata is a separate model because:
1.  some structures like JSON have no real model
2. we still need additional information like @Field, @Valid etc as part of our 
metadata to drive navigation
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