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From "Ralph Goers (JIRA)" <j...@apache.org>
Subject [jira] Issue Comment Edited: (CONFIGURATION-420) OverrideCombiner seems to ignore list nodes
Date Thu, 10 Jun 2010 04:22:24 GMT

    [ https://issues.apache.org/jira/browse/CONFIGURATION-420?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12877312#action_12877312
] 

Ralph Goers edited comment on CONFIGURATION-420 at 6/10/10 12:22 AM:
---------------------------------------------------------------------

I would suggest that you checkout trunk and then build the web site. The documentation on
the combiners was improved to illustrate the difference between the OverrideCombiner, UnionCombiner,
and a new MergeCombiner. The MergeCombiner may work the way you desire as it attempts to merge
nodes rather than override them.

Also, after viewing that documentation, if you would like a combiner that works differently
please open Jira issue that describes the way it should behave in detail. If you could provide
a combiner that implements that, so much the better.

      was (Author: ralph.goers@dslextreme.com):
    I would suggest that you checkout trunk and then build the web site. The documentation
on the combiners was improved to illustrate the difference between the OverrideCombiner, UnionCombiner,
and a new MergeCombiner. The MergeCombiner may work the way you desire as it attempts to merge
nodes rather than override them.
  
> OverrideCombiner seems to ignore list nodes
> -------------------------------------------
>
>                 Key: CONFIGURATION-420
>                 URL: https://issues.apache.org/jira/browse/CONFIGURATION-420
>             Project: Commons Configuration
>          Issue Type: Bug
>          Components: Interpolation
>    Affects Versions: 1.6
>            Reporter: Aniruddh Chitre
>            Priority: Minor
>         Attachments: config-conf.xml, config-custom.xml, config.xml
>
>
> When using OverrideCombiner it seems to ignore any list nodes and always return properties/values
for list node from the overridden file. See the attached files for an example of what I mean.
The following code always returns the values from config-custom even if list-nodes mentions
that the sysprops node is a list-node.
> 		URL fileURL = TestConfig.class.getResource("config-conf.xml");
> 		
> 		try
> 		{
> 			DefaultConfigurationBuilder configBuilder = new DefaultConfigurationBuilder(fileURL);
> 			CombinedConfiguration config = configBuilder.getConfiguration(true);
> 			System.out.println(config.getString("sysprops/testkey"));
> 			System.out.println(config.getString("configprops/testkey1"));
> 		}
> 		catch (ConfigurationException e)
> 		{
> 			e.printStackTrace();
> 		}

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