vasanthk

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

halcyonmobiledev

// with just a simple extension function for the Data Binding ObservableField
inline fun <R> ObservableField<R>.observe(crossinline callback: (R) -> Unit) {
    this.addOnPropertyChangedCallback(object : Observable.OnPropertyChangedCallback() {
        override fun onPropertyChanged(p0: Observable?, p1: Int) {
            callback(get())
        }
    })
}
...