Property type

Firefly has a special type called Property, this type encapsulates properties and manage the storage and access of values. Properties commonly abstracts field access and definition, but could also abstract the access and definition of remote values, such as database values, file stored values, etc...

Access

The access to a property value is simple:

val nameProp: Property<name: String> = ...;
val name = nameProp.get() //Result<String, Error>

The get method returns a Result because it is not guaranteed that the value still accessible or could be retrieved.

Definition

The definition is a bit more complex

val nameProp: Property<name: String> = ...;
val set: SetOp<Property<String>> = nameProp.set()
set.to("hello") // Resulr<Op, Error>