Would that work?
@ProvidedBy(AutoValue_ExampleB.Builder.class)
@AutoValue
abstract class ExampleB {
…
@AutoValue.Builder
abstract static class Builder implements Provider<ExampleB> {
@Inject abstract Builder setA(A a);
@Inject abstract Builder setB(B b);
…
abstract ExampleB get();
}
}
That said: AutoValue has been designed for "value objects", and you're
kind-of "abusing" it here as a "generic generator of builders".
(I also don't see how this is less cumbersome to maintain than a
constructor; where your IDE can generate the constructor argument from a
declared final field).
On Tuesday, February 26, 2019 at 10:57:17 PM UTC+1, Kyle Roush wrote:
>
> I would like to use a builder (preferably auto-value) with Guice.
> Guice can find constructors annotated with @Inject but those can be
> cumbersome to maintain and I would like to move to a builder pattern and
> have that be automatically found.
>
> so the current way is like
> class ExampleA {
>
> ...
>
> @Inject
> public ExampleA(A a, B b, ...) {
>
> }
>
> ...
>
> }
>
> But I would like to be able to
> @ProvidedBy(builder = Builder.class) // or some way to let know guice to
> know what is the thing that builds it
> @AutoValue
> class ExampleB {
> ...
>
> @AutoValue.Builder
> public abstract static class Builder {
>
> public abstract Builder setA(A a);
>
> public abstract Builder setB(B a);
>
> ...
>
> public abstract ExampleB build();
> }
>
>
> }
>
>
>
>
> Right now the only way i can think of how to use a builder pattern with
> Guice is to have a provides method int he module and have all the possible
> inputs injected in to the method of the provides which can still be very
> annoying to maintain
>
> I am open to different ideas on how to link the builder and real object.
>
>
>
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