How do I detect the data type of a node?

Hello all,
I have a few quick questions about using Schema with XDK. I hope someone can answer this for me.
1) How do I detect the datatype of a node? I need to be able to detect if it is date/time, number or boolean
2) How do I then parse the string into date, number, etc. ?
3) Does Oracle SOAP also support this kind of thing? (ie. detecting the data type of a node and then parsing it?)
4) Does XDK support inline schema?
thanks in advance!

Thanks for the response.
So are you saying that it is not possible or not easy to detect the typed value data type of a node? In past years, I have had experience with converting based on what looks like a number and it is impossible to safely assume something is a number just because it looks like one. For example a Product ID could be: 14E1 which many routines would detect as a scientific notation number. This is why I need to be able to detect the data type.
But I am no Schema expert, but my understanding of schema is that simple types have standard designations. I think it is something like xsd:string or xsd:number, etc. But no matter what parser I look at them all seem to be implemented the same way and I can't figure out with any of them how to detect the datatype and then parse it appropriately. But it should be possible since it is written into the schema.
Since I'm using Jdev I'm hoping that the Oracle XDK can do this, if not does anyone know of any good parsers that can? I'm having trouble even locating validating parsers. Aside from Oracles all I could find were IBMs and Xerces which both seem to be based on the same thing anyhow.
Help or pointers in the right direction would be much appreciated since I have been struggling with this seemingly simple task for a long time.

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