Introduction

Trigger: Dead simple Commands and application-wide Callbacks.

The introduction below defines an ActionScript class and a function to be used in a simple Hello World example.

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Command: A class.

public class MyCommandClass {
    public function execute(...args) :void {
        // do something, like make a service call for data, perform some business logic, or return a value to the caller.
        trace("Hello World from a Command class");
    }
}

When Trigger executes a Command, it creates a new instance of the class and then invokes a method, returning any value back to the caller.

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Callback: A function.

function myCallbackFunction(...args) :void {
    // do something, like change the state of your application or return a value to the caller.
    trace("Hello World from a Callback function");
}

When Trigger executes a Callback, it invokes the function, returning any value back to the caller.

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Example: Add & trigger a Command and a Callback

Main.as

// Adding a Command
addCommand("trigger1", MyCommandClass);
// Adding a Callback
addCallback("trigger2", myCallbackFunction);

Anywhere.as

// Trigger the Command
trigger("trigger1");
// Trigger the Callback
trigger("trigger2");

Console Output

Hello World from a Command class
Hello World from a Callback function

This example illustrates the simplicity of Trigger. No configuration files, no classes to extend and no overt framework code in your application - just a simple global function API for Commands and Callbacks.

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Where to go from here?

1. Download the source or .swc here
2. View an introductory application here
3. Try it out and contribute to the project :)