Also posted on Stack Overflow <http://stackoverflow.com/q/7111518/403455>
would like to bind a unique singleton instance for each annotation as shown
below, such that Client1.a != Client1.b and Client1.a == Client2.a.
class X {}
@Singleton class OneOfEachAnnotation {
@Inject OneOfEachAnnotation(X x) { }
}
class Client1 {
@Inject Client(@A OneOfEachAnnotation a, @B OneOfEachAnnotation b) {}
}
class Client2 {
@Inject Client(@A OneOfEachAnnotation a, @B OneOfEachAnnotation b) {}
}
This
answer<http://stackoverflow.com/questions/1221920/getting-multiple-guice-singletons-of-the-same-type/1407719#1407719>seems
to claim that I can accomplish the binding like this, but when I do
so, Client1.a == Client1.b.
bind(OneOfEachAnnotation.class).annotatedWith(A.class).to(OneOfEachAnnotation.class).in(Singleton.class);
bind(SingletonClass.class).annotatedWith(B.class).to(SingletonClass.class).in(Singleton.class);
Do I have to create a provider class and expose the constructor of
OneOfEachAnnotation just to accomplish this? I'll be very surprised if there
isn't a simpler method for solving this common problem.
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