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Subject AW: [configuration] save xml list element
Date Thu, 12 Jan 2017 07:27:44 GMT
No I`m just doing a change somewhere else, but not in that particular node, but it is splitted
up in separate nodes anyway. I understand that you have to create an internal node for each
comma separated value, but why you can`t store it back as comma separated value?

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-----Ursprüngliche Nachricht-----
Von: Oliver Heger [] 
Gesendet: Mittwoch, 11. Januar 2017 18:04
An: Commons Users List
Betreff: Re: [configuration] save xml list element


Am 11.01.2017 um 10:04 schrieb
> I`m reading a xml configuration object with a xml element containing a comma separated
> <SSLEnabledProtocols>TLSv1.1,TLSv1.2</SSLEnabledProtocols>
> I archive this by setting explicitly a ListDelimiterHandler
> this.xmlConfigBuilder = new FileBasedConfigurationBuilder<XMLConfiguration>(ExtendedXMLConfiguration.class)
>                                         .configure(params.xml().setFile(configFile).setExpressionEngine(new
> .setListDelimiterHandler(new DefaultListDelimiterHandler(',')));
> and the reading is fine, but when I write this out I got separate xml elements for each
value instead of the same comma separated value element.
> <SSLEnabledProtocols>TLSv1.1</SSLEnabledProtocols>
> <SSLEnabledProtocols>TLSv1.2</SSLEnabledProtocols>

the current implementation of XMLConfiguration internally always splits strings containing
the delimiter character on reading and creates multiple internal node objects for the single
values. This is required to handle queries correctly that operate on the internal node model.
So when writing out such a configuration the original format is lost and multiple list nodes
are created.

I would, however, assume that a change in the format only occurs if there is a change in the
value of the property or if the content of a configuration is copied into another one. When
loading an XML file the configuration stores the original DOM and applies changes on it as
necessary. That way the original format should be kept as close as possible. Are there such
changes in your use case?



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