Hi,

   I used to encounter such a problem and fix it by moving the =
occurrence constraint from the particles of a model group to the model =
group itself such as, 

        <xs:complexType name="essai">
            <xs:choice>
                <xs:choice minOccurs="0" maxOccurs="unbounded">
                    <xs:element ref="art1"/>
                    <xs:element ref="art2"/>
                </xs:choice>
                <xs:choice minOccurs="0" maxOccurs="unbounded">
                    <xs:element ref="s1"/>
                    <xs:element ref="s2"/>
                </xs:choice>
            </xs:choice>
        </xs:complexType>
        
        <xs:complexType name="essaiRestrict">
            <xs:complexContent>
                <xs:restriction base="essai">
                    <xs:choice>
                        <xs:choice maxOccurs="unbounded">
                            <xs:element ref="art1"/>
                            <xs:element ref="art2"/>
                        </xs:choice>
                        <xs:choice maxOccurs="unbounded">
                            <xs:element ref="s1" />
                            <xs:element ref="s2"/>
                        </xs:choice>
                    </xs:choice>
                </xs:restriction>
            </xs:complexContent>
        </xs:complexType> 

I am not sure it is suitable for your case, just a possible work around.


Lisa

-----Original Message-----
From: xmlschema-dev-request@w... [mailto:xmlschema-dev-request@w...] =
On Behalf Of Pierre Attar
Sent: Thursday, July 13, 2006 7:33 AM
To: xmlschema-dev@w...
Subject: Fwd: RE: Resctriction problem on complexType


Michael,

Thanks for your answer but I don't really see 
where, in this sample, essaiRestrict complexeType  allows art1 AND s1.
The basis still remains a choice. The only 
restriction made is to make mandatory the two 
choices contained in the first one.


FYI, here are the different logs of tools :

Xerces C 2.7 :
Error at file T:\proj\tmp\pbRestriction.xsd, line 20, char 39
    Message: Recurse: There is not a complete
functional mapping between the particles

XSDValid :
file:/T:/proj/tmp/pbRestriction.xsd:E:20:2:
complexType is an invalid restriction of its base
type: "choice" particle is not a valid
restriction of corresponding "choice" particle in
base type [rcase-Recurse.2.1] [derivation-ok-restriction.5.3]

SQC :
Initializing Schema Quality Checker. Please wait ...
SchemaQualityChecker has been initialized
PROCESSING T:\proj\tmp\pbRestriction.xsd time : 2006-07-13T15:29:53 ...
T:\proj\tmp\pbRestriction.xsd (file 1 of 1) now being read ...
ERROR
   file = file:T:/proj/tmp/pbRestriction.xsd line 35 column 19
SEVERITY: 1
ERROR TYPE: 2
MESSAGE TYPE REFINEMENT ERROR (content type
incompatible with the content type of the basetype):
In the definition of complexType essaiRestrict,
elementOnly content model (<xs:c
hoice maxOccurs="1" minOccurs="1">
      <xs:choice maxOccurs="unbounded" minOccurs="1">
          <xs:element maxOccurs="1" minOccurs="1" 
name="art1" nillable="false"/>
          <xs:element maxOccurs="1" minOccurs="1" 
name="art2" nillable="false"/>
      </xs:choice>
      <xs:choice maxOccurs="1" minOccurs="1">
          <xs:element maxOccurs="unbounded"
minOccurs="1" name="s1" nillable="false"/>
          <xs:element maxOccurs="unbounded"
minOccurs="1" name="s2" nillable="false"/>
      </xs:choice>
</xs:choice>
) is not a restriction of elementOnly content
model (<xs:choice maxOccurs="1" mi
nOccurs="1">
      <xs:choice maxOccurs="unbounded" minOccurs="0">
          <xs:element maxOccurs="1" minOccurs="1" name="art1"/>
          <xs:element maxOccurs="1" minOccurs="1" name="art2"/>
      </xs:choice>
      <xs:choice maxOccurs="1" minOccurs="0">
          <xs:element maxOccurs="unbounded" minOccurs="1" =
name="s1"/>
          <xs:element maxOccurs="unbounded" minOccurs="1" =
name="s2"/>
      </xs:choice>
</xs:choice>
), the content type defined by the basetype.


Regards, Pierre

>at 16:13 13/07/2006, you wrote:
>>Your restricted type allows an art1 element followed by an s1 element. =
The
>>base type doesn't allow this. It's invalid to define a restricted type =
that
>>allows content that the base type doesn't permit.
>>
>>Michael Kay
>>http://www.saxonica.com/
>>
>>
>> >
>> > The aim is ti defne a restricted type by setting minOccurs to
>> > 1 to included choices.
>> >
>> > <?xml version="1.0" encoding="UTF-8"?>
>> > <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
>> > elementFormDefault="qualified" =
attributeFormDefault="unqualified">
>> >  <xs:complexType name="essai">
>> >       <xs:choice>
>> >            <xs:choice minOccurs="0" maxOccurs="unbounded">
>> >                 <xs:element ref="art1"/>
>> >                 <xs:element ref="art2"/>
>> >            </xs:choice>
>> >            <xs:choice minOccurs="0">
>> >                 <xs:element ref="s1" maxOccurs="unbounded"/>
>> >                 <xs:element ref="s2" maxOccurs="unbounded"/>
>> >            </xs:choice>
>> >       </xs:choice>
>> >  </xs:complexType>
>> >
>> >  <xs:complexType name="essaiRestrict">
>> >       <xs:complexContent>
>> >            <xs:restriction base="essai">
>> >                 <xs:choice>
>> >                      <xs:choice maxOccurs="unbounded">
>> >                           <xs:element ref="art1"/>
>> >                           <xs:element ref="art2"/>
>> >                  </xs:choice>
>> >                  <xs:choice>
>> >                           <xs:element ref="s1" =
maxOccurs="unbounded"/>
>> >                       <xs:element ref="s2" =
maxOccurs="unbounded"/>
>> >                  </xs:choice>
>> >              </xs:choice>
>> >         </xs:restriction>
>> >       </xs:complexContent>
>> >  </xs:complexType>
>> >
>> > <xs:element name="art1"/>
>> >  <xs:element name="art2"/>
>> >  <xs:element name="s1"/>
>> >  <xs:element name="s2"/>
>> >
>> > </xs:schema>
>> >
>> > Can anybody explain the problem ?
>> >
>> > Thanks in advance
>> >
>> > --
>> > Bruno Chatel
>> > Tel : (+33) (0)4 96 11 14 57
>> > bcha@c...
>> > http://www.chadocs.com
>> > --------------------------------------
>> >
>> >
>
>Pierre Attar (mailto:attar@t...)
>Consultant in Structured Document engineering
>Consultant en informatique documentaire
>Tir=E8me SARL (http://www.tireme.fr)
># : +33 1 43 41 12 13


Pierre Attar (mailto:pat@t...)
Consultant en informatique documentaire XML
Consultant in Structured Document engineering
Tir=E8me SARL (http://www.tireme.fr)





From mi