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@module( complete = false,library = true ) public final class ApiModule { public static final @R_675_10495@ng PRODUCTS_BASE_URL = "https://products.com"; @Provides @Singleton Endpoint provideEndpoint() { return Endpoints.newFixedEndpoint(PRODUCTS_BASE_URL); } @Provides @Singleton ObjectMapper provideObjectMapper() { ObjectMapper objectMapper = new ObjectMapper(); objectMapper.setPropertyNamingStrategy( PropertyNamingStrategy.CAMEL_CASE_TO_LOWER_CASE_WITH_UNDERscoreS); return objectMapper; } @Provides @Singleton RestAdapter provideRestAdapter( Endpoint endpoint,ObjectMapper objectMapper) { return new RestAdapter.builder() .setLogLevel(RestAdapter.LogLevel.NONE) .setEndpoint(endpoint) .setConverter(new JacksonConverter(objectMapper)) .build(); } @Provides @Singleton Productsservice provideProductsservice(RestAdapter restAdapter) { return restAdapter.create(Productsservice.class); } }
现在,我想与之沟通另一个API(例如“http://subsidiaries.com”).是否可以在重用ObjectMapper和RestAdapter时扩展给定的ApiModule？或者我不应该延长它？我已经尝试复制模块了.但这涉及到我必须复制Endpoint,ObjectMapper和…… RestAdapter有一个私有的构造函数 – 所以我不能.
@module( complete = false,library = true ) public final class ApiModule { public static final @R_675_10495@ng PRODUCTS_BASE_URL = "https://products.com"; public static final @R_675_10495@ng SUBSIDIARIES_BASE_URL = "https://subsidiaries.com"; public static final @R_675_10495@ng PRODUCTS = "products"; public static final @R_675_10495@ng SUBSIDIARIES = "subsidiaries"; @Provides @Singleton @Named(PRODUCTS) Endpoint provideProductsEndpoint() { return Endpoints.newFixedEndpoint(PRODUCTS_BASE_URL); } @Provides @Singleton @Named(SUBSIDIARIES) Endpoint provideSubsidiariesEndpoint() { return Endpoints.newFixedEndpoint(SUBSIDIARIES_BASE_URL); } @Provides @Singleton ObjectMapper provideObjectMapper() { ObjectMapper objectMapper = new ObjectMapper(); objectMapper.setPropertyNamingStrategy( PropertyNamingStrategy.CAMEL_CASE_TO_LOWER_CASE_WITH_UNDERscoreS); return objectMapper; } @Provides @Singleton @Named(PRODUCTS) RestAdapter provideProductsRestAdapter(@Named(PRODUCTS) Endpoint endpoint,ObjectMapper objectMapper) { return newRestAdapterBuilder(objectMapper) .setEndpoint(endpoint) .build(); } @Provides @Singleton @Named(SUBSIDIARIES) RestAdapter provideSubsidiariesRestAdapter(@Named(SUBSIDIARIES) Endpoint endpoint,ObjectMapper objectMapper) { return newRestAdapterBuilder(objectMapper) .setEndpoint(endpoint) .build(); } @Provides @Singleton @Named(PRODUCTS) Productsservice provideProductsservice(@Named(PRODUCTS) RestAdapter restAdapter) { return restAdapter.create(Productsservice.class); } @Provides @Singleton @Named(SUBSIDIARIES) Productsservice provideSubsidiariesservice(@Named(SUBSIDIARIES) RestAdapter restAdapter) { return restAdapter.create(Productsservice.class); } private RestAdapter.builder newRestAdapterBuilder(ObjectMapper objectMapper) { return new RestAdapter.builder() .setLogLevel(RestAdapter.LogLevel.NONE) .setConverter(new JacksonConverter(objectMapper)); } }
现在,在您注入Productsservice的任何地方,您都需要使用@Named(PRODUCTS)或@Named(SUBSIDIARIES)注释依赖项,具体取决于您需要的变体.当然,除了@Named注释,您还可以创建自己的@L_262_10@注释并使用它们.请参阅“限定符”下的here.
要稍微展平模块,可以将RestAdapter的创建移动到provide * service()方法中,并取消提供* RestAdapter()方法.当然,除非你需要RestAdapters作为模块之外的依赖项.
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