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Xml Schema parser

Posted on 2008-10-20
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Last Modified: 2012-05-05
Hello,
Given the following line of code;
SchemaParser sparser = new SchemaParser(schemaParserFile.toURI().toURL());
The URL points to an xml file.

How could one print/show the content of sparser?  
I have tried; System.out.print(sparser.getConstraints()); but nothing get printed. it could be that it is empty.
Also, if the xml file does not have "constraints" then the method getContraints might have nothing to get.
I was hoping it would read/get the tags, but it does not seem like it does.
Any suggestions?
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Question by:chima
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Expert Comment

by:Kevin Cross
ID: 22764197
If you are using SchemaParser from this package:
http://oodt.jpl.nasa.gov/metadata-service/apidocs/jpl/eda/metadata/validation/package-summary.html

Then it appears you get the constraints that the Schema defines as a Map.  The API for the Constraint object itself can be found on same link above.

Otherwise, please provide the package you are using SchemaParser from.
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Author Comment

by:chima
ID: 22767618
mwvisa1, while I got the code from here; http://www.javaworld.com/jw-11-2000/Validation/src.zip 
I have debugged it some.  If you need to see the debugged version, please let me know.
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Author Comment

by:chima
ID: 22767671
mwvisa1, I looked at the link that you provided and it is the package I am using.  How then could I look at the Map?  The xml file I am working with does not provide constraints.  It provides tags and it is these tags information that I am hoping to parse.
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Accepted Solution

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Kevin Cross earned 2000 total points
ID: 22767949
From what I can gather on this API, you don't call the SchemaParser directly (at least doesn't seem like it to me).  You pass the SchemaUrl to the factory method that creates the instance of Validator.  The Validator object then uses the Constraints passed back by the parser to determine if data you pass it to validate meets the constraints imposed by the XSD (Schema Document).
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Author Closing Comment

by:chima
ID: 31508059
Thanks, more to come.
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