See Aliases IoC Cookbook - Overriding IoC Services

Introduction

Tapestry goes to great lengths so that you can use the Inject annotation on a field and provide no additional data, yet end up with the correct object or service.

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You can then contribute into the Infrastructure service's configuration:

public static void contributeAlias(@InjectService("MyService") MyService myService,
        Configuration<AliasContribution> configuration)
{
    configuration.add(AliasContribution.create(MyService.class, myService));
}

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Notice that the contribution doesn't _have_ to be a service; you can just instantiate an object inside the contribution method and contribute that. That's what we're doing in the example, though we're using a create() static method rather than *new* (just to smooth out some Java Generics ugliness).

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