[jira] Updated: (CAY-477) Support for preordered relationships

["Andrey Razumovsky (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CAY-477?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrey Razumovsky updated CAY-477:
----------------------------------

    Attachment: 477-proto.patch

Here's prototype of how I see the issue.
Orderings can be added to objRelationship, and they are relative to *target* entity (e.g. to Painting for "Artist.paintingArray" relationship). For relationships with orderings, resolving returns ordered list.

Some things to be done:
(1) Collection methods, like add() addAll() should keep the order. 
(2) Map and Set support 
For (1) and (2) we'll need to introduce different underlying implementation of PersistentObject*
(3) Modeler support

(4) Not sure of this --> set() method of collections and changing the object in ordered collection should somehow keep order. This is unseen truth for maps but will be a pain for lists. Do we need this??

> Support for preordered relationships
> ------------------------------------
>
>                 Key: CAY-477
>                 URL: https://issues.apache.org/jira/browse/CAY-477
>             Project: Cayenne
>          Issue Type: Task
>          Components: Core Library, Modeler
>    Affects Versions: Undefined future
>            Reporter: Andrus Adamchik
>             Fix For: Undefined future
>
>         Attachments: 477-proto.patch
>
>
> This is already supported on the client (PersistentObjectList). Need to either add support for it to ToManyList or migrate DataContext to use PersistentObjectList. In any event Modeler support is needed.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.