Extending Builders: Layout Builders

[Tom Eugelink]

All these constraints-stored-in-the-node approaches ignore the fact that not the same constraints need to be valid for all possible layouts. Two layouts also can be extremely different; suppose a HBox and a Circular layout. Layout constraints exist in the intersection between node and layout, they should not be pushed into some generic store.

And there is concern about speed because of casting, but won't reflection have a much bigger performance penalty?
TomE