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From "Wesley Miaw (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CONFIGURATION-293) HierarchicalConfiguration.clearTree() does not remove named property
Date Thu, 23 Aug 2007 20:08:30 GMT

    [ https://issues.apache.org/jira/browse/CONFIGURATION-293?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12522254
] 

Wesley Miaw commented on CONFIGURATION-293:
-------------------------------------------

Maybe examples would help to illustrate the issue. I took "It is not strictly forbidden to
manipulate a CombinedConfiguration directly, but the results may be unpredictable." to mean
if I tried to play around with its insides in a way other than the public interface.

> HierarchicalConfiguration.clearTree() does not remove named property
> --------------------------------------------------------------------
>
>                 Key: CONFIGURATION-293
>                 URL: https://issues.apache.org/jira/browse/CONFIGURATION-293
>             Project: Commons Configuration
>          Issue Type: Bug
>    Affects Versions: 1.4
>            Reporter: Wesley Miaw
>         Attachments: bug-config.xml, bug-override.xml, bug-test.properties
>
>
> HierarchicalConfiguration.clearTree(String) calls HierarchicalConfiguration.removeNode(ConfigurationNode)
which removes nothing if the passed in ConfigurationNode has no parent. Having no parent is
true of nodes that have the root for their parent (it seems to me) as well as for nodes that
have no properties defined "above" them. Here is an example:
> config.addProperty("a.b.c", "c");
> config.addProperty("a.b.c.d", "d");
> config.addProperty("a.b.c.d.e", "e");
> The following sequence of calls will fail:
> config.clearTree("a.b.c");
> assert config.containsKey("a.b.c") == false;
> The following sequence of calls will succeed:
> config.clearTree("a.b.c.d");
> assert config.containsKey("a.b.c.d") == false;
> assert config.containsKey("a.b.c.d.e") == false;

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