[CAUSEWAY-834] [WON'T FIX] Ensure that only a single implementation of a DomainService is registered.

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Won't Fix
• Affects Version/s: core-1.5.0
• Fix Version/s: 1.16.1
• Component/s: Core
• Assignee: Unassigned
• Reporter: Daniel Keir Haywood
• Created: 07/Jul/14 07:10
• Updated: 22/Feb/18 21:59
• Resolved: 17/Feb/18 15:55

Description

Two complications:

• ExceptionRecognizers require multiple implementations (are chained together)
• for each implementation we identify all the types it implements, so the check isn't a simple 1:1 map (at the limit all implementations extend java.lang.Object). Therefore need to take into account the set of injection points that the services are injected into.