CODEWITHSUNDEEP
scalaplayframeworkguiceplayframework-2.4
Martijn
Martijn

Reputation: 2326

What Singletons does Play! Framework 2.4 provide out of the box?

Recently, Play! Framework 2.4 introduced us to the magic world of Dependency Injection and it's benefits but what application specific singletons are there? Digging through the documentation, I've found a couple already:

Are there any more? Is there a central place where all these are listed?

Upvotes: 2

Views: 239

Answers (1)

Luong Ba Linh
Luong Ba Linh

Reputation: 802

Play 2.4 gets rid of global variables defined in Global, i.e. GlobalSettings, in Play 2.3 and before. A specific implementation of an abstraction will be used at run time via dependency injection. This makes your application more flexible and easier to test. Guice is one of good dependency injection frameworks. This is an example of using Guice in Play 2.4 for dependency injection. https://github.com/luongbalinh/play-mongo/blob/master/app/modules/DIBindingModule.scala

In addition, your configurations for different deployment environments, such as local, alpha, and production, are defined in different application.conf files respectively.

Upvotes: 0

Related Questions