如何管理不同模块之间的共享依赖关系？

Question

I have the following services TopService that injects MidService that injects LowService

I want to use TopService with LowServiceA in one maven project (let's call it ProjectA). ProjectB depends on another maven project (call ProjectB) that uses the TopService with LowServiceB .

Below is how I have ProjectA's Guice Module defined:

ProjectAModule extends AbstractModule {

    @Override
    protected void configure() {
        install(new PrivateModule() {
        @Override
        protected void configure() {
            bind(TopService.class);
            bind(MidService.class);
            bind(LowService.class).toInstance(new LowServiceA());
        });
        install(new PrivateModule() {
        @Override
        protected void configure() {
            install(new ProjectBModule());
            bind(TopService.class);
            bind(MidService.class);
            bind(LowService.class).toInstance(new LowServiceB());
        });
    }
}

I'm just wondering if this is the best way to configre my dependencies. One thing I don't like about this approach is that I have to manually bind TopService , MidService , and LowService each time.

Answer 1

just make CommonsModule and ProjectAModule and ProjectBModule and create injector using 2 modules depending on project.

CommonsModule should contain

 bind(TopService.class);
 bind(MidService.class);

and ProjectAModule/ProjectBModule

bind(LowService.class).toInstance(new LowServiceA());

or

bind(LowService.class).toInstance(new LowServiceB());