design patterns - Service Locator - Disadvantages over DI -

both of these achieve same goal of decoupling. different patterns.

1.) disadvantages of service locator on di? couple of them if got right.

• needs container. component needs container code
• unit testing hard.

2.) advantages of sl on di?

• kind of provides encapsulation of dependencies.
• no need explicitly advertise dependencies.

3.) when use what? (di/sl). real life examples?

this has been discussed in several thread. there no real concise answer this.