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List:       xmlbeans-dev
Subject:    Re: XMLBeans problems with xs:group ref
From:       Jacob K Asiedu <kasiedu () cs ! umb ! edu>
Date:       2005-05-12 12:03:31
Message-ID: 42834613.5040002 () cs ! umb ! edu
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This is just a document to reproduce the error. The scomp eror says
"warning: sch-props-correct.2: Duplicate identity constraint: 
Owners_UniqueAgentRole"
But i still do not understand why it says that..I think it is a bug in 
XMLBEANS..I will file a bug report..



Radu Preotiuc-Pietro wrote:

> I'm actually not sure about that myself. I _think_ it should be an error since the \
> "Owner" element in the first group reference is really different than the "Owner" \
> element in the second group reference. Why is group reference used in this case \
> instead of element reference (if you used element reference instead, there would be \
> no issue)? Do you know? This is a "grey" area of the spec, I'll have to do some \
> digging. However, I am surprised that this in itself causes you to not be able to \
> generate the binding, after all, like you said, it is a warning. 
> Thanks,
> Radu
> 
> -----Original Message-----
> From: Jacob K Asiedu [mailto:kasiedu@cs.umb.edu]
> Sent: Wednesday, May 11, 2005 2:21 PM
> To: dev@xmlbeans.apache.org
> Subject: Re: XMLBeans problems with xs:group ref
> 
> 
> I forgot to attach the schema..
> 
> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" 
> elementFormDefault="qualified" attributeFormDefault="unqualified">
> <xs:element name="root">
> <xs:complexType>
> <xs:sequence>
> <xs:group ref="Owner" minOccurs="1" maxOccurs="unbounded"/>
> <xs:element name="test">
> <xs:complexType>
> <xs:sequence>
> <xs:group ref="Owner" minOccurs="1" 
> maxOccurs="unbounded"/>
> </xs:sequence>
> </xs:complexType>
> </xs:element>
> </xs:sequence>
> </xs:complexType>
> </xs:element>
> <xs:group name="Owner">
> <xs:sequence>
> <xs:element name="Owners" type="OwnerType" minOccurs="0">
> <xs:annotation>
> <xs:documentation xml:lang="en-us">Entities having 
> legal possession of the data collection content. Owners are defined only 
> for the entire data collection, not for individual descriptions etc. (= 
> http://www.loc.gov/ marc.relators/own)</xs:documentation>
> </xs:annotation>
> <xs:unique name="Owners_UniqueAgentRole">
> <xs:selector xpath="Agent"/>
> <xs:field xpath="@ref"/>
> <xs:field xpath="@role"/>
> </xs:unique>
> </xs:element>
> </xs:sequence>
> </xs:group>
> <xs:complexType name="OwnerType">
> <xs:sequence>
> <xs:element name="Agent">
> <xs:complexType>
> <xs:simpleContent>
> <xs:extension base="xs:string">
> <xs:attribute name="role" type="xs:string"/>
> <xs:attribute name="ref" type="xs:string"/>
> </xs:extension>
> </xs:simpleContent>
> </xs:complexType>
> </xs:element>
> </xs:sequence>
> </xs:complexType>
> </xs:schema>
> 
> 
> Jacob K Asiedu wrote:
> 
> 
> 
> > I cannot generated source code from the following schema. This because 
> > the reference to the group "Owner" is included more than once.
> > An error message that says "warning: sch-props-correct.2: Duplicate 
> > identity constraint: Owners_UniqueAgentRole"
> > comes up..I think it is an error on the part of XMLbeans but i am not 
> > sure..Any help will be appreciated.
> > 
> > 
> > 
> > 
> 
> 
> 

-- 
Jacob K. Asiedu
Software Engineer, Computer Science Dept.
UMASS-Boston
kasiedu@cs.umb.edu
http://efg.cs.umb.edu
phone (+1)617 287 6481 
fax (+1)617 287 6499 


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