Hi, I'm trying to get guice assisted inject to help me create a nested tree
of factories for a client api library I'm writing. The basic pattern looks
like this:
interface Parent {
Child child();
// other methods
}
interface Child {
Leaf leaf(String arg);
// other methods
}
class Leaf {
@Inject Leaf(@Assisted String arg) {
// do something with arg
}
}
The only place in this patterns that actually has any implementation detail
(i.e. non-boilerplate) is the Leaf class. The rest are simple factory
interfaces that could be implemented something like:
class SimpleParent implements Parent {
private final Provider<Child> childProvider;
@Inject
SimpleParent(Provider<Child> childProvider) {
this.childProvider = childProvider;
}
@Override
public Child child() {
return childProvider.get();
}
}
As you can imagine this leads to a lot of boilerplate code.
What I would like is for guice to manage all of this for me, AssistedInject
seems like the closest fit for what I want but isn't quite right. Is there
anything in guice that can do what I need?
Thanks in advance.
Matt
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