You could have a look at multi binders.
https://github.com/google/guice/wiki/Multibindings
Then bind all possible implementations of an interface and use the value
from the properties to select the one out of the set.
On 19.06.2018 16:33, 'Mariano Gonzalez' via google-guice wrote:
Hello,
I have a case in which a portion of the binding are dynamically
provided through a properties file with the following format:
|
exampleService=ExampleServiceImpl
fooService=FooServiceImpl
|
Unlike Guice's approach, the key is not a type but an actual Name. For
now, I'm just binding those concrete types to themselves, like
/bind(FooServiceImpl.class).to(bindFooServiceImpl.class)/
Of course this approach doesn't work because then the following
injection would fail:
|
publicclassFoo{
@Inject
privateFooServicefooService;
}
|
There's no default way in which Guice would figure out that FooService
can actually be served by FooServiceImpl. The alternative that I have
thought about so far is to introspect those types and generate
bindings for each superclass and implemented interface.
I was wondering is there's a less "brute force" approach.
Thanks
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