Parse XML Schema File?

Dear Sun Developer Network,
I suppose maybe I should start at the beginning.
Can anyone outline the first few steps involved in parsing an XML schema file into a traversable data structure in Java?
I'd like to get a get a discussion started here about this, because I have some questions about the process as I currently understand it, and the more advanced (i'm supposing they're more advanced) questions that I've been asking in the past have gone completely unanswered in this forum. So perhaps, starting from the beginning, and working through to the difficulties I'm encountering would be a better approach to solving those issues.
Thank you,
Nels

>
Many thanks for your reply! My next question is,
s, if parsing an XML schema file can be done with a
SAX or dom parser, then why has Sun bothered to
develop the JAXB api? What is the difference?
Hi Nels,
SAX and DOM are technologies for parsing and JAXB is a technology for databinding. They are 2 different technologies.
Parsing gives you acess to raw xml
DataBinding does the parsing and goes one step ahed and loads the data from xml to java objects. It is a higher level of abstraction over parsing
schema is a specification which helps to define the rules for a valid xml document. It also happens to be xml. DTD is a kind of limited schema which is non xml.
hope you got the diffrence.
ps: did you try the -J-Xmx switch with javac to resolve yhe OutOfMemory exception I suggested in your previous post
Regards,
Rajagopal

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Regards,
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Edited by: dezer on Jun 2, 2010 5:04 AM
Edited by: dezer on Jun 2, 2010 5:08 AM

Welcome to the Sun forums.
dezer wrote:
..Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
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Hey,
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The error is:
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Message was edited by:
Raja Thangamani

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for some reason it does not like a space between "Windows" and "2000" any
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"Joel" <[email protected]> wrote in message
news:3fa9468b$[email protected]..
>
Sorry for this post, because it really isn't a weblogic specific thing,but I can't
find my answer
anywhere else.
I am attempting to validate my xml file using an XML Schema file. The XML
Schema code looks like this:
<xsd:element name="operatingSystem">
<xsd:simpleType>
<xsd:list>
<xsd:simpleType>
<xsd:restriction base="xsd:string">
<xsd:pattern value=".*(w|W)(I|i)(n|N).*"/>
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</xsd:simpleType>
</xsd:list>
</xsd:simpleType>
</xsd:element>
The XML snippet looks like this:
<operatingSystem>Windows 2000</operatingSystem>
The error that I'm getting when using the SaxParser is the following:
org.xml.sax.SAXException: cvc-pattern-valid: Value '2000' is not facet-v
alid with respect to pattern '.*(w|W)(I|i)(n|N).*' for type 'null'.
at org.apache.xerces.parsers.AbstractSAXParser.parse(UnknownSource)
at SAXLocalNameCount.main(SAXLocalNameCount.java:272)
Somehow, the validation breaks my one string in the operatingSystem taginto
two separate strings to be validated. Can anybody give me some advice on
what to do?
Thanks in advance,
Joel

Parse XML Schema File?

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