Providers are delegated constructors, so they override constructor
behavior. However, have you tried just binding the key to the concrete
implementation class, instead of a provider wrapper around the class?
pBinder.bind(pInterface).to(pImplementation).in(SINGLETON);
Guice will examine that implementation class, pick out its constructor
with @Inject, and then analyze its dependencies. I think the provider
wrapper is unnecessary.
Christian.
On 5 Apr 2014, at 10:36, Jochen Wiedmann wrote:
Hi,
one of my modules contains the following code: The Provuder works by
calling Class.newInstance(), which is generallly fine. Except that it
ignores @Inject constructors.
Are there any possibilities to change that?
Thanks,
Jochen
P.S: And, btw: Is the "synchronized" on get really needed?
private void bind(Binder pBinder, Class<?> pInterface, final
Class<?>pImplementation, String pName) {
final Class<Object> type;
if (pInterface == null) {
type = Generics.cast(pImplementation);
} else {
type = Generics.cast(pInterface);
}
final Key<Object> key;
if (Strings.isEmpty(pName)) {
key = Key.get(type);
} else {
key = Key.get(type, Names.named(pName));
}
final Provider<Object> provider = new Provider<Object>() {
private Object instance;
@Override
public synchronized Object get() {
if (instance == null) {
try {
instance = pImplementation.newInstance();
} catch (Throwable t) {
throw Exceptions.show(t);
}
}
return instance;
}
};
pBinder.bind(key).toProvider(provider).in(Scopes.SINGLETON);
}
--
You received this message because you are subscribed to the Google
Groups "google-guice" group.
To unsubscribe from this group and stop receiving emails from it, send
an email to [email protected].
To post to this group, send email to [email protected].
Visit this group at http://groups.google.com/group/google-guice.
For more options, visit https://groups.google.com/d/optout.
Christian Gruber :: Google, Inc. :: Java Core Libraries :: Dependency
Injection
email: [email protected] :::: mobile: +1 (646) 807-9839
--
You received this message because you are subscribed to the Google Groups
"google-guice" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at http://groups.google.com/group/google-guice.
For more options, visit https://groups.google.com/d/optout.
