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From "Craig Russell (JIRA)" <j...@apache.org>
Subject [jira] Commented: (JDO-548) PM.getManagedObjects() : access to the objects enlisted in a transaction
Date Tue, 27 Nov 2007 00:17:44 GMT

    [ https://issues.apache.org/jira/browse/JDO-548?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12545656
] 

Craig Russell commented on JDO-548:
-----------------------------------

If we want to cater for the most common cases, we could add these methods:
<T> Set<T> getManagedObjects(EnumSet<ObjectState> states, Class<T>
clazz); 
<T> Set<T> getManagedObjects(Class<T> clazz); 

This avoids the capture conversion and least upper bounds issues and avoids a compile time
warning: [unchecked] unchecked conversion in the simple case where one class is asked for.
But it bloats the API.

My suggestion after all this is to add to the API just these four methods:
Set getManagedObjects(); 
Set getManagedObjects(EnumSet<ObjectState> states); 
Set getManagedObjects(Class... classes); 
Set getManagedObjects(EnumSet<ObjectState> states, Class... classes); 


> PM.getManagedObjects() : access to the objects enlisted in a transaction
> ------------------------------------------------------------------------
>
>                 Key: JDO-548
>                 URL: https://issues.apache.org/jira/browse/JDO-548
>             Project: JDO
>          Issue Type: New Feature
>          Components: api2, api2-legacy, specification
>            Reporter: Andy Jefferson
>             Fix For: JDO 2 maintenance release 1
>
>         Attachments: api2-legacy.managedobjects.patch, api2.managedobjects.patch
>
>
> It would be desirable to provide access to the objects enlisted in the transaction of
a PersistenceManager. It is proposed that this be via the following methods on javax.jdo.PersistenceManager.
> api2
> Collection getManagedObjects(); // Return all enlisted objects
> Collection getManagedObjects(ObjectState ... states); // Return enlisted objects in the
specified states
> api2-legacy
> Collection getManagedObjects(); // Return all enlisted objects
> The return type could just as easily be Object[].

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