Sure, this is a default feature of Guice:
public class RiakModule extends AbstractModule {
@Override
protected void configure() {
PBClientConfig conf = new PBClientConfig.Builder()
.withHost("127.0.0.1")
.withPort(8097)
.build();
bind(PBClientConfig.class).toInstance(conf);
}
@Provides
public IRiakClient getClient(PBClientConfig config) {
return RiakFactory.newClient(config)
}
}
In this case no binding is required for IRiakClient, as it's automatic by
the @Provides method.
You can also bind the config with a binding annotation (in this case the
getClient() method's PBClientConfig parameter must be annotated by the same
annotation. You can also annotate the @Provides method with a binding
annotation and/or make it singleton by using the @Singleton annotation.
HTH
--
L
On Fri, Nov 1, 2013 at 3:59 PM, Ari King <[email protected]>wrote:
>
>
> On Thursday, October 31, 2013 7:20:25 PM UTC-4, Laszlo Ferenczi wrote:
>>
>> Hi,
>>
>> As simple as:
>>
>> bind(IRiakClient.class).**toInstance(client);
>>
>> Create the client instance in the same module where the binding is.
>> If you'd like to use multiple instances just bind them with an annotation:
>>
>> bind(IRiakClient.class).**annotatedWith(MyAnnotation.**
>> class).toInstance(client);
>>
>> @Inject
>> @MyAnnotation
>> IRiakClient client;
>>
>> HTH
>>
>>
>> --
>> L
>>
>>
> Hi,
>
> Thank you for the example; it was very helpful. However, I do have a
> follow-up question. I understand that I can create a method annotated with
> @Provides that can create the desired object instance. In the above
> scenario, the client values are hardcoded, in my situation the underlying
> framework at bootup creates a configuration object to use with client
> construction. Can this configuration object be passed to the @Provides
> method within the AbstractModule implementation? If yes, how?
>
>
> -Ari
>
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