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From "Aron Olsen (JIRA)" <j...@apache.org>
Subject [jira] [Created] (XMLSCHEMA-48) How to inherit attributes down to final complex type
Date Thu, 11 May 2017 00:45:04 GMT
Aron Olsen created XMLSCHEMA-48:
-----------------------------------

             Summary: How to inherit attributes down to final complex type
                 Key: XMLSCHEMA-48
                 URL: https://issues.apache.org/jira/browse/XMLSCHEMA-48
             Project: XmlSchema
          Issue Type: Question
    Affects Versions: 2.2.1
            Reporter: Aron Olsen
            Priority: Trivial
             Fix For: 2.1.1


Hi there,
I am in the scenary of traversing the out-come of reading an XSD.
I am somewhat trying to simplify the output of XMLSchema, in order to have the properties
(elements and attributes) mapped to DB-tables (complex types) and DB-table-columns (mayby
XSD-complex, geometries for instance or other DB-complex-types or XSD-simple, string, int
etc.).
I am bewildered about how attributes are to be inherited down to a complex XSD type when deriving
from another XSD-type by restriction. As I have learned so far, all attributes are to be inherited
by default, as opposed to element-properties of the base-type.
Is this rightly understood by me?
In my simplified model I keep track of the base-type hierarchy, and how the inheritance is
defined (extension, restriction, final). For each level I have tracked all the attributes
of each complex type. Do I need to "collect" base-type attributes not referenced in a current
complex type, when the current complex type is deriving from a super-type by restriction?
In other words: Do XmlSchema do any automic inheritance derivations "behind the scenes", or
do we have to do such on our own behalf?
As you will understand: If XmlSchema is not doing the attribute-inheriting for me, I have
to do it my self. This will involve "inherit all attributes from base-type which is not mentioned
in current type".
Hope my question is understandable: How to inherit attributes when extending by restriction.
/Aron




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