LabVIEW AF_11 More details of Interface

February 3, 2021

Learning notes for LabVIEW Interface

An Introduction to G interface

In General Context:

Software interface = the set of functions that one code module uses to request functionality from another module

In today’s Context:

Interface = a new data type that defines a set of tasks that object can do without specifying how those tasks must be done

Identity - State - Behavior

Three things go into making a class and decide the inheritance hierarchy as well as how classes related to each other.

State is the internal data that a class stores that has the transitions that it moves through
Behavior is the presentation that it the things/tasks Class can do
Identity is the how the rest of system think of this object

Interface only defines:

assets/images/LabVIEW Actor Framework/11/Interface.png

An interface is a user-defined data type with encapsulation and inheritance
An interface has all parts of a class except the private data control and the Call Parent Class Method node
Class inherit methods from interfaces and then provide their OWN implementation (very similar to inherited from an abstract Class)

It do not have private data control.

A Class defines an object’s existence, behavior and it is a concrete thing that we know how to work/implement
An Abstract class is the framework around it, it is a basic structure that the details will be filled later
An interface doesn’t even really talk to the structure. It says this is what I can do, this is a list of functionality. When a class has this interface, it can do these things