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From "Alex Selg (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CONFIGURATION-500) Attributes in xml config should apply to all entries of a list
Date Fri, 15 Jun 2012 11:51:44 GMT
Alex Selg created CONFIGURATION-500:
---------------------------------------

             Summary: Attributes in xml config should apply to all entries of a list
                 Key: CONFIGURATION-500
                 URL: https://issues.apache.org/jira/browse/CONFIGURATION-500
             Project: Commons Configuration
          Issue Type: Improvement
          Components: Expression engine
    Affects Versions: 1.8
         Environment: Linux, Windows
            Reporter: Alex Selg


If you have an XML configuration with lists and attributes like this:

{code:xml}
<configuration>
       <someStrings environment="test">str1,str2,str3</someStrings>
       <someStrings environment="prod">str4,str5,str6</someStrings>
</configuration>
{code}

and if you have a different implementation of the DefaultExpressionEngine which implements
the query() methode to check these attributes

{code}
       List<ConfigurationNode> queryResults = super.query(root, key);
       for (ConfigurationNode queryResult : queryResults) {
           attributes = queryResult.getAttributes();
           ...
       }
{code}

than you'll only get the attributes for the first node of the list - the
subsequent nodes don't have any attributes set.
So for "str1" I'll get the attribute environment="test", for "str2"
and "str3" I'll get no attributes.

Oliver H. pointed out that this is the intended behaviour (http://mail-archives.apache.org/mod_mbox/commons-user/201205.mbox/browser).

I think it would be more straightforward assigning attributes to all nodes of a list. Otherwise
the list feature seems incomlete to me.
Especially if your lists are a bit longish it would be very nice to avoid repeating tags in
your config.xml.

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