[jira] Resolved: (CONFIGURATION-333) Support update-aware sub-configurations for the configurationsAt() method

["Oliver Heger (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CONFIGURATION-333?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Oliver Heger resolved CONFIGURATION-333.
----------------------------------------

    Resolution: Fixed

Fixed in subversion.

> Support update-aware sub-configurations for the configurationsAt() method
> -------------------------------------------------------------------------
>
>                 Key: CONFIGURATION-333
>                 URL: https://issues.apache.org/jira/browse/CONFIGURATION-333
>             Project: Commons Configuration
>          Issue Type: New Feature
>    Affects Versions: 1.5
>            Reporter: Oliver Heger
>            Assignee: Oliver Heger
>            Priority: Minor
>             Fix For: 2.0
>
>
> The configurationAt() method of hierarchical configurations has a supportsUpdates parameter. If set to true, the sub-configuration returned is aware of updates of its parent configuration. The configurationsAt() method should support a similar mechanism, too.
> Checking for updates of the parent configuration requires the sub-configuration to be constructed with a unique key. So far it was not possible to determine such a key in the configurationsAt() method because the key passed to this method can select multiple nodes. So a way has to be implemented to determine a unique key for a given configuration node.
> Having unique keys for all properties defined could be useful for other use cases, too. Maybe an extended version of the getKeys() method makes sense that returns unique keys? So each key returned by this method is guaranteed to map to exactly one node.

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