An Injecto is a Groovy class that can be injected into other classes.

Want to make all String s bark? Me neither, but here is how you could do it using Injecto's ...

import injecto.Injecto

class Dog
{
    def bark = { -> println "woof" }
}

use (Injecto) { String.inject(Dog) }

"".bark() // prints "woof"

Interesting huh? Well maybe not. But it can be used for for something useful. Injecto is the mechanism used to inject dynamic behaviour for the Gldapo library.

Some other key features ...

Motivations

Injecto is an attempt at bring Ruby mixin like behaviour to Groovy.

It is also serves the purpose of allowing dynamic functionality to be discretely packaged and documented using Groovydoc.