Hi : 

I am trying to use XML Beans with the AIXM schema as well. I am seeing
similar problems. I realize there are certain problems with the AIXM schema
that users are not able to change. I am building web services and all other
tools seem to not work when trying to map aixm xml to java objects. 

I was wondering if you were able to resolve this?

Thanks


Ash Lux wrote:
> 
> Thank you for pointing me to the right place in the specs.  I'm glad to
> hear
> the silly shape example is fine.
> 
> I'll submit an issue to both XMLBeans and AIXM on this.
> 
> Thanks for the help.
> 
> On 3/14/08, Radu Preotiuc-Pietro  wrote:
>>
>>  Exactly, in your original example the Schema is invalid and XMLBeans has
>> a bug for not reporting the condition sooner. This is the paragraph of
>> the
>> spec that I was referring to:
>>
>> http://www.w3.org/TR/xmlschema-1/#cos-ct-extends
>>
>> Clause 1.5 is clearly not satisfied by your original example. If the
>> Schema in error comes from a 3rd party you can easily point out to them
>> (politely :-) that the Schema is invalid, if you have the chance (and in
>> the
>> meantime, you need to use a local modified copy). If you control one of
>> the
>> Schemas involved, then you need to change the Schema that you do control.
>>
>> The "shape" example on the other hand, I believe it's all right, because
>> the "radius" element has the same type (xsd:double) in both places and
>> the
>> minOccurs="1" in the derived type is a restriction of minOccurs="0" in
>> the
>> original type.
>>
>> I know this is not the easiest part of XMLSchema to understand, but if
>> you
>> think about it, I believe it makes sense.
>>
>> Hope this helps,
>> Radu
>>
>>  ------------------------------
>> *From:* Ash Lux [mailto:[email protected]]
>> *Sent:* Friday, March 14, 2008 6:14 PM
>> *To:* [email protected]
>> *Subject:* Re: scomp error - incompatible return type
>>
>> Thank you Jacob and Radu for the help.
>>
>> Unfortunately I'm not the one who controls the schema - it's one of
>> "define a schema by a large committee thing".  I'm sure that explains a
>> lot.
>> :-)  I'll certainly try and get the schema fixed, but I don't want to
>> accuse
>> them of having a bad schema when XMLBeans has a bug.
>>
>> Radu is tihs what you're talking about being invalid?:
>>
>> 
>>
>> 
>>   
>>     
>>     
>>     
>>   
>> 
>>
>> 
>>   
>>     
>>     
>>   
>> 
>>
>> 
>>   
>>     
>>        maxOccurs="1"/>
>>     
>>   
>> 
>>
>> I am doing something similar to this with a schema I do control.  When
>> using XMLBeans, the Circle class will have getters and setters for
>> radius,
>> length, and width but if you try to set anything other than radius the
>> object will not validate  (actually XMLBeans might throw an exception, I
>> don't quite remember).  This seems to be the correct behavior from what I
>> understand (which might not be much).
>>
>> In the above example, XMLBeans overrides Circle_Restrict's getRadius
>> method and replaces it with its own.
>>
>> So in my original example the ArrestingGearTimeSliceType class is trying
>> to override AbstractGMLType's getDescription method (with a int return
>> type)
>> as implement it's own getDescription (with a string return type).
>>
>> It looks to me XMLBeans has a bug one way or another - either the schema
>> is valid and XMLBeans is blowing up on compile or XMLBeans isn't catching
>> the invalid schema and blowing up on compile.  If this is a valid schema,
>> there's not really a pretty solution XMLBeans can use..
>>
>> On 3/13/08, Radu Preotiuc-Pietro  wrote:
>> >
>> > Having an element called "description" of type "int" does sound fishy
>> to
>> > me, so I suggest you change that to "string".
>> >
>> > I seem to vaguely remember that there is a Schema rule according to
>> > which you can't remove an element by restriction and then in a
>> > subsequent derivation step, add it back by extension, which is what is
>> > happening here. If my recollection is correct, then there is a bug in
>> > XMLBeans for not catching this error sooner. If not, then it is just a
>> > Java limitation (are you compiling with jdk1.5 or 1.4?)
>> >
>> > Radu
>> >
>> >
>> > On Thu, 2008-03-13 at 11:00 -0700, Jacob Danner wrote:
>> > > As far as whats going on, ArrestingGearTimeSlice has 2 description
>> > > elements defined
>> > > 1 from xs:extension base="AbstractAIXMTimeSliceBaseType" which refers
>> > > to the top level description as an int
>> > > and the other from   which
>> > > refers to its local type description as a string.
>> > >
>> > > I'm not really sure whats intended by the aixm group here, but it
>> > > appears to be a valid error (one I would expect) from the schema
>> > > snippet you posted.
>> > > You may want to contact aixm about it.
>> > > If you can tell us what is expected from that type, maybe we can hack
>> > > up a real workaround for you, but the simplest thing I would suggest
>> > > is to change those types to match.
>> > > -jacobd
>> > >
>> > > On Thu, Mar 13, 2008 at 6:06 AM, Ash Lux  wrote:
>> > > > I've been trying to use a third party's XSD with XMLBeans
>> > (specifically
>> > > > something called AIXM - http://www.aixm.aero/).
>> > > >
>> > > > I'm unsure if the problem lies with XMLBeans or with the schema.  I
>> > was able
>> > > > to replicate the problem with this test XSD:
>> > > >
>> > > >  > > >            elementFormDefault="qualified"
>> > > >            attributeFormDefault="unqualified">
>> > > >
>> > > >    > > > type="ArrestingGearTimeSliceType">
>> > > >   
>> > > >
>> > > >   
>> > > >     
>> > > >        
>> > > >         
>> > > >           
>> > > >         
>> > > >       
>> > > >      
>> > > >   
>> > > >
>> > > >   
>> > > >     
>> > > >        > nillable="true"
>> > > > minOccurs="0"/>
>> > > >      
>> > > >   
>> > > >
>> > > >    > abstract="true">
>> > > >     
>> > > >       
>> > > >        
>> > > >     
>> > > >   
>> > > >
>> > > >   
>> > > >     
>> > > >       
>> > > >      
>> > > >   
>> > > >
>> > > >   
>> > > >     
>> > > >       
>> > > >      
>> > > >   
>> > > >
>> > > >   
>> > > >
>> > > > 
>> > > >
>> > > > This is my output from scomp:
>> > > >
>> > > > ash...@ashlux-work:~/Desktop$ ~/java/xmlbeans-2.3.0/bin/scomp
>> > test.xsd
>> > > >  Time to build schema type system: 2.25 seconds
>> > > > Time to generate code: 0.621 seconds
>> > > >
>> > /tmp/xbean41513.d/src/noNamespace/ArrestingGearTimeSliceType.java:29:
>> > > > xgetDescription() in noNamespace.ArrestingGearTimeSliceType clashes
>> > with
>> > > > xgetDescription() in noNamespace.AbstractGMLType; attempting to use
>> > > > incompatible return type
>> > > >  found   : org.apache.xmlbeans.XmlString
>> > > > required: org.apache.xmlbeans.XmlInt
>> > > >     org.apache.xmlbeans.XmlString xgetDescription();
>> > > >                                   ^
>> > > >
>> > /tmp/xbean41513.d/src/noNamespace/ArrestingGearTimeSliceType.java:24:
>> > > > getDescription() in noNamespace.ArrestingGearTimeSliceType clashes
>> > with
>> > > > getDescription() in noNamespace.AbstractGMLType; attempting to use
>> > > > incompatible return type
>> > > >  found   : java.lang.String
>> > > > required: int
>> > > >     java.lang.String getDescription();
>> > > >                      ^
>> > > >
>> >
>> /tmp/xbean41513.d/src/noNamespace/impl/ArrestingGearTimeSliceTypeImpl.java:47:
>> > > > xgetDescription() in
>> noNamespace.impl.ArrestingGearTimeSliceTypeImplcannot
>> > > > implement xgetDescription() in noNamespace.AbstractGMLType;
>> > attempting to
>> > > > use incompatible return type
>> > > >  found   : org.apache.xmlbeans.XmlString
>> > > > required: org.apache.xmlbeans.XmlInt
>> > > >     public org.apache.xmlbeans.XmlString xgetDescription()
>> > > >                                          ^
>> > > >
>> >
>> /tmp/xbean41513.d/src/noNamespace/impl/ArrestingGearTimeSliceTypeImpl.java:29:
>> > > > getDescription() in
>> noNamespace.impl.ArrestingGearTimeSliceTypeImplcannot
>> > > > implement getDescription() in noNamespace.AbstractGMLType;
>> > attempting to use
>> > > > incompatible return type
>> > > >  found   : java.lang.String
>> > > > required: int
>> > > >     public java.lang.String getDescription()
>> > > >                             ^
>> > > > Note: Some input files use or override a deprecated API.
>> > > > Note: Recompile with -Xlint:deprecation for details.
>> > > >  4 errors
>> > > >
>> > > > BUILD FAILED
>> > > > ash...@ashlux-work:~/Desktop$
>> > > >
>> > > > It appears as if the schema is violating the unique particle
>> > attribution
>> > > > rule, but I'm not sure because of the restriction tag.  If I do not
>> > use the
>> > > > group tag, I get the unique particle attribution rule.
>> > > >
>> > > > Got any thoughts on what's going on?  Any thoughts on workarounds
>> or
>> > hacks?
>> > > >
>> > >
>> > >
>> > >
>> >
>> >
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