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

["Andrus Adamchik (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CAY-1424?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrus Adamchik closed CAY-1424.
--------------------------------

    Resolution: Fixed

> DI: support for named service injection and flexible map/list binding
> ---------------------------------------------------------------------
>
>                 Key: CAY-1424
>                 URL: https://issues.apache.org/jira/browse/CAY-1424
>             Project: Cayenne
>          Issue Type: Task
>    Affects Versions: 3.1M1
>            Reporter: Andrus Adamchik
>            Assignee: Andrus Adamchik
>             Fix For: 3.1M1
>
>
> 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). 

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