This project shows off some new ways of structuring APIs and apps that have opened up as a result of Java 8. It is a sandbox for playing around with ideas. Naturally, it requires Java 8 to compile, though for distributing code that uses Java 8 features, one can use Retrolambda to distribute it as Java 6 and 7 compatible bytecode.
See ExampleApplication.java
for an example of an application that does event handling that confers the following benefits:
- Strongly typed
- Terse and clear syntax for declaring and consuming events
- Easy unit testing because of no data/infrastructure cross-contamination between instances of
ExampleAPI - Low magic (everything is discernible by following method calls in the app, there's no magic framework that controls and structures things for us).
- The same type of event data can be used for different logical events
- Each API has control over how it chooses to implement the event handling
interfaces (e.g. use the available
Event - The available
Eventimplementation is configurable at a system-wide level