When would one install a Guice module?

Question

I'm referring to Binder.install() - when would one use that?

Answer 1

A couple examples:

• Your module depends on bindings from another module and you don't expect the user of your module to provide those bindings (they're for some internal stuff, perhaps).
• You'd prefer to group several modules in one rather than listing them all out in Guice.createInjector. For example, you might want to install several modules for services inside the ServletModule that defines the servlets/filters that use those services.