It sidesteps Guice unless it is within a @Provides method, or a Provider
instance that is bound, in which case guice still manages the lifecycle
but delegates to the Provides method to do the actual creation itself.
Christian
On 12 Apr 2013, at 17:43, Alper Akture wrote:
Thanks alot, that all makes total sense. I just was thinking, since
Guice
is the one calling the provider method, it could know the instance I'm
creating is supposed to be a singleton, and enforce that somewhere
along
the line. I guess any "new" not done by Guice sides steps that
ability.
On Friday, April 12, 2013 2:11:58 PM UTC-7, Jeff wrote:
If your @Provider does not have @Singleton, Guice will call the
provider
for every instance it is asked for and run whatever code is defined.
Doing a 'new' (or anything else for that matter) inside the provider
is
outside Guice's scope, unless you are interacting with the @Injector
directly. Guice must manage the object lifecycle.
What I don't know is if Guice looks for and honors the @Singleton
annotation on the class itself or whether it must be defined as
singleton
via the bindings.
On Fri, Apr 12, 2013 at 2:34 PM, Alper Akture
<[email protected]<javascript:>
wrote:
I have an @Provides method in a module that creates an object for
me, and
the class of that object has @Singleton on it. I found that merely
having
the @Singleton on the class does not enforce a single instance being
created. After adding @Singleton to the @Provider method, I do get a
single
instance. Even though I am doing a "new" on the object in my
provider
method, couldn't Guice see that the @Provider method is creating it,
and do
the same thing it does (keep a single instance handy and give it out
when
requested) when having the @Singleton on the provider method?
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