Minimalistic example without modules.
The code in DaggerGarage.java is like handwritten code.
@Override
public Car car() {
return new Car(new Engine());}-
Module - set of dependencies
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Enables tests
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Binds is done in compile time (Garage.java)
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Provides is injected in runtime (TestGarage.java)
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provider - jsr-330
- SessionScope - SessionData and SessionManager is in same scope so constructor works
- DBClient is in different scope so we can inject
- DoublecheckProvider ensures that ut is same object
- Singleton is just a scope
- Communicate with external framework through factories
- bindsinto
- Object gets created on get call
- Demonstrate inject