Observability

Observables support the ability to bind Observers to them. Observers receive an update when the contents of the cell change. Observerables are both Observables Observers.

Cells are Observerable, which means you can chain them to each other to publish and receive updates about changes in cell content.

Lets take a quick look:

Two-way binds are also supported for Observerables (which cells are):

Lets look at what Observers actually are:

They’re just a functional interface, this means you can use them for whatever you’d like, not just binding cells together.

Bindings involving LateInitCells and derivatives are fine between each-other, but bindings between LateInitCells and RefCells of a non-nullable type get complex.

Knowing that Observers are just functional interfaces, lets solve the issues that arise when binding nullable to non-nullable cells.

Observers can also be unbound:

Cool, that’s all for observability for now.