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From "Tim Lark (JIRA)" <>
Subject [jira] [Created] (CONFIGURATION-636) Allow a user-defined order in the method.
Date Tue, 05 Jul 2016 22:03:11 GMT
Tim Lark created CONFIGURATION-636:

             Summary: Allow a user-defined order in the
                 Key: CONFIGURATION-636
             Project: Commons Configuration
          Issue Type: Improvement
          Components: Format
    Affects Versions: 2.0
            Reporter: Tim Lark

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 to use the public getKeys() method
instead of layoutData.keySet():
FROM: for (String key : layoutData.keySet())
TO:   for (String key : getKeys())

Then I could override getKeys() to return the required order for saving.

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