Best option for creating XML

Hello

I am facing problem,

I have created the XML file, but I can't see it / exit it.

Please can anyone suggest what's best way to create xml files?

(1) create xml with DocumentBuilderFactory and then analyze or

(2) manually create xml hardcoded and save it to the sd card and then access it for analysis.

I have continuously variable data text in xml files.

What approach will be following me more?

Help, please.

Thank you

Françoise.

Why you are unable to view the XML file? How to read as a byte array and look into the debugger? That way at least you can check the syntax of the XML prologue is correct. Then, you can read in as an array of characters using the appropriate encoding and check the syntax of the entire file.

Regarding the creation of XML code, the best approach depends entirely on what you start with. You have built a DOM model or or do you have custom data structures you want to encode?

The XMLWriter class in net.rim.device.api.xml.jaxp is not all that useful for generating XML, because it is designed to be used as a Manager when parsing existing XML - it is more than an XML processor to an XML writer. It's not too hard to write your own code to generate XML; a search on the web will be probably some examples of implementation.

To find out where to keep the XML on the device: the file system, permanent storage, or RMS all work fine. Your basis in the analysis job it will be to open an input stream on what you've stored, create an InputSource of the stream and feed it to one of the analyzers. In general, unless you really need to generate a DOM model, the approach of SAX parser is much more effective. You can create your custom data directly structures as the analysis takes place, rather than going back in a DOM trying to get information. Still, a web search for "SAX compared to DOM parsing" or a similar collection of key words meet a number of good tutorials on how to do this.

PS After re-reading your original post, I think you may be confused about something. The DocumentBuilderFactory and the SAXParserFactory are tools to transform XML in an internal data structure. You do not use them to go the other way. For this, you are going to have to write your own code, or find others, you can borrow; I don't think that there is something useful in the RIM API. (XMLWriter can be used to move from the existing to the new, equivalent XML, XML, which is not that it would be useful for you.)

Tags: BlackBerry Developers

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