[CAY-1424] DI: support for named service injection and flexible map/list binding

• Type: Task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.1M1
• Fix Version/s: 3.1M1
• Assignee: Andrus Adamchik
• Reporter: Andrus Adamchik
• Created: 28/Apr/10 08:11
• Updated: 02/May/13 02:29
• Resolved: 01/May/10 08:54

Description

1. DI wIll support optional named bindings to allow multiple instances of the same type of DI object. E.g.:

Binder.bind(Class<T> interfaceType, String bindingName)

2. DI map and list bindings will no longer be tied to the type of object they are injected to. Instead such bindings will require a name. E.g.:

Binder.bindMap(String bindingName) // Map.class will be used implicitly as the type
...
Someclass {

public Someclass(@Inject("xyz") Map<String, String> map)

{ ... }

}

Note that both DI features are intentionally simplified versions of the corresponding Guice features to avoid overcomplicating of Cayenne DI. E.g. #1 in Guice is done with custom annotations, not Strings, and #2 allows distinguishing between the maps by their parameterized key and value types (same for lists).

Issue Links

• is depended upon by: CAY-1420 Migrate ROP server-side components to DI-based stack