Faggart, Robin wrote:
>I was just getting ready to ask the same or a similar
>question....Acording to the examples in the howto_xml documentation
>(reference: jakarta.apache.org/commons/configuration/howto_xml.html)
>it's possible to reference the properties using indexes (for example
>getProperty("tables.table(0)name")). Are you saying that the
>documentation is incorrect or am I asking a different question?
>
>Thanks.
>Robin Faggart
>
>
I think, this is a different question.
It is correct that you can access properties using indices as in your
example (though you are missing a dot before "name").
Here the question was how to obtain keys with indices when a
configuration is given. The getKeys() method returns only plain keys
without indices, e.g. "tables.table.name".
Oliver
>-----Original Message-----
>From: Oliver Heger [mailto:[EMAIL PROTECTED]
>Sent: Monday, March 27, 2006 2:15 PM
>To: Jakarta Commons Users List
>Subject: Re: XMLConfiguration: Keyname list
>
>[EMAIL PROTECTED] wrote:
>
>
>
>>Hi
>>
>>
>>
>>Question regarding XMLConfiguration. How could I get the list of
>>keynames stored in an XMLConfiguration object?
>>
>>
>>
>>Say for instance my XML file looks like -
>>
>><database>
>> <tables>
>> <table tableType="system">
>> <name>users</name>
>> <fields>
>> <field>
>> <name>uid</name>
>> <type>long</type>
>> </field>
>> <field>
>> <name>uid</name>
>> <type>long</type>
>> </field>
>>
>>.
>>.
>>.
>>.
>></database>
>>
>>
>>
>>Is there an API which would return a Collection of containing the
>>following keynames?
>>
>>
>>
>>tables.table(0).fields(0).field.name
>>
>>tables.table(0).fields(1).field.name
>>
>>
>>
>>
>>
>>If not an API is there a standard way of doing this.
>>
>>
>>
>>
>>
>This is not directly supported. The getKeys() method defined in the
>Configuration interface only returns the defined keys without indices.
>
>For which purpose do you need these keys? If it is only for a convenient
>way of iterating over a hierarchical configuration, the latest code in
>SVN contains the method
>HierarchicalConfiguration.configurationsAt(String key), which gives you
>access to sub structures of the configuration.
>
>If you really need keys with indices, I fear you will have to traverse
>the HierarchicalConfiguration.Node objects by yourself and construct the
>keys.
>
>HTH
>Oliver
>
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