Application resources, a.k.a. injectables, caching and redis

[Jim Marino]

Hi,

I've implemented the ability to inject custom resources into components. There were a number of use cases around support for caching and injecting specific types of resources such as Redis clients into components. 

I originally mentioned I wanted to create an @Injectable annotation to support this. However, in looking at it further, I realized the existing @Resource annotation fits this and the custom injectables are "application resources" as opposed to "system resources" (services provided by the runtime).

To use this feature:

1. Create an application resource factory with the DSL in a Provider:

    @Provides

    public static Composite createComposite() {

        QName name = new QName(Namespaces.F3, "ResourceComposite");

        CompositeBuilder builder = CompositeBuilder.newBuilder(name);

        

        // the resource is created using ApplicationResourceBuilder by passing a name and a Supplier and added to the composite

        builder.resource(ApplicationResourceBuilder.newBuilder("AppResource", SomeResourceImpl::new).build()).deployable();

        return builder.build();

    }

2. Inject the resource on a component:

    @Resource(name = "AppResource")

    protected SomeResource resource;

I think this should solve the issue of integrating F3 with caches and other third-party libraries. Let me know how it works.

Jim

 

[Tomas Fecko]

Hi,

this is looks like a simple solution, reusing the stuff we are already familiar with, I like it.
We will test it...

Tomas

Dňa 16.10.2015 o 9:09 Jim Marino napísal(a):

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