XML Schema validation without XSD file but with XSD in memory??

[Lauren Bish <lc...@developerdude.org>]

While people are thinking about XSD, is there a way to have Xerces 
validate an XML blob using an in memory definition of an XSD?

I surfed around in the JavaDocs and didn't see any obvious way of 
constructing an XSD on the fly, and handing it to Xerces to use to 
validate an XML blob. The closest I could find was SchemaGrammar.

Excuse me if this obvious to others, it just isn't to me as I am new to 
XML, XSD and Xerces. If there are any examples of how to do this I would 
  appreciate a link.

Thanks.


---------------------------------------------------------------------
To unsubscribe, e-mail: j-users-unsubscribe@xerces.apache.org
For additional commands, e-mail: j-users-help@xerces.apache.org

Re: XML Schema validation without XSD file but with XSD in memory??

[Lauren Bish <lc...@developerdude.org>]

Thanks George,

That helps a lot. What I have is a class that, on the fly (i.e., can 
change dynamically from one instant to the next), defines a structure 
against which I need to validate a given subset of XML - so I need to 
convert that class into an in memory XSD and then hand that to the 
parser. I was thinking that instead of creating an XSD file from my 
class, that I could somehow take my class and create the XSD in memory 
without having to create a string representation of the XSD.

But I will figure it out with that link I think - apparently the object 
I want to create either a org.apache.xerces.xni.grammars.XSGrammar;
or an org.apache.xerces.xs.XSModel.

George Cristian Bina wrote:
> Hi Lauren,
> 
> For validating a document with a specified schema see
> http://xml.apache.org/xerces2-j/faq-grammars.html
> 
> If you have the schema document as a String in memory then you can very 
> easily feed that to the parser. The parser needs an InputSource and that 
> does not require a file, you can set directly a Reader that can be a 
> StringReader created over the String that represents your schema.
> 
> Hope that helps,
> George
> ---------------------------------------------------------------------
> George Cristian Bina
> <oXygen/> XML Editor, Schema Editor and XSLT Editor/Debugger
> http://www.oxygenxml.com
> 


---------------------------------------------------------------------
To unsubscribe, e-mail: j-users-unsubscribe@xerces.apache.org
For additional commands, e-mail: j-users-help@xerces.apache.org

Re: XML Schema validation without XSD file but with XSD in memory??

[George Cristian Bina <ge...@sync.ro>]

Hi Lauren,

For validating a document with a specified schema see
http://xml.apache.org/xerces2-j/faq-grammars.html

If you have the schema document as a String in memory then you can very 
easily feed that to the parser. The parser needs an InputSource and that 
does not require a file, you can set directly a Reader that can be a 
StringReader created over the String that represents your schema.

Hope that helps,
George
---------------------------------------------------------------------
George Cristian Bina
<oXygen/> XML Editor, Schema Editor and XSLT Editor/Debugger
http://www.oxygenxml.com


Lauren Bish wrote:
> While people are thinking about XSD, is there a way to have Xerces 
> validate an XML blob using an in memory definition of an XSD?
> 
> I surfed around in the JavaDocs and didn't see any obvious way of 
> constructing an XSD on the fly, and handing it to Xerces to use to 
> validate an XML blob. The closest I could find was SchemaGrammar.
> 
> Excuse me if this obvious to others, it just isn't to me as I am new to 
> XML, XSD and Xerces. If there are any examples of how to do this I would 
>  appreciate a link.
> 
> Thanks.
> 
> 
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: j-users-unsubscribe@xerces.apache.org
> For additional commands, e-mail: j-users-help@xerces.apache.org
> 

---------------------------------------------------------------------
To unsubscribe, e-mail: j-users-unsubscribe@xerces.apache.org
For additional commands, e-mail: j-users-help@xerces.apache.org