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https://issues.apache.org/jira/browse/CONFIGURATION-636?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15371782#comment-15371782
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Tim Lark commented on CONFIGURATION-636:
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Thanks Oliver...fantastic turnaround response!
> Allow a user-defined order in the PropertiesConfigurationLayout.save method.
> ----------------------------------------------------------------------------
>
> Key: CONFIGURATION-636
> URL: https://issues.apache.org/jira/browse/CONFIGURATION-636
> Project: Commons Configuration
> Issue Type: Improvement
> Components: Format
> Affects Versions: 2.0
> Reporter: Tim Lark
> Fix For: 2.1
>
>
> For .properties file manipulation, I have a use case that requires something
> like "addKeyAfterKey(String keyToAdd, String afterKey)". This allows a
> property to be written after some other property when saving.
> I have extended PropertiesConfigurationLayout to accomplish this new
> behavior. Unfortunately, the save method iterates over a private member
> (layoutData), so I have no control over the final file order.
> An easy fix for my use case would be to change line 564 of
> PropertiesConfigurationLayout.java to use the public getKeys() method instead
> of layoutData.keySet():
> {noformat}
> FROM: for (String key : layoutData.keySet())
> TO: for (String key : getKeys())
> {noformat}
> Then I could override getKeys() to return the required order for saving.
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