I believe that a well-formed XML document must always have a single root
element. If I'm understanding right, you would like to have multiple root
elements, therefore your documents would not be well-formed.
----- Original Message -----
From: "Sriram Thyagarajan" <Sriram_Thyagarajan_at_KEANE-NNE.com>
To: <JAXB-INTEREST_at_JAVA.SUN.COM>
Sent: Thursday, March 27, 2003 11:54 PM
Subject: Re: XML Schema questions
> Thanks for your reply.
>
> My second question... Is is probably a simple question, because of my
> limited exposure to XML schema...
>
> Looks like XML schema defintion always looks for a root level node and
then
> within that node, sub nodes... e.g.
>
> <XmlInterfaceRecord>
> <AccidentHeader>
> <VehicleInformation>
> <damageCodes>AB,CD</damageCodes>
> <damageAmount>200</damageAmount>
> <vin>AEBCDEFGHIJKLMNOPQRSTUV</vin>
> <vehicleMake>Toyota</vehicleMake>
> <vehicleYear>2002</vehicleYear>
>
> <RegistrationInformation>
> </RegistrationInformation>
>
> <RegistrationInformation>
> </RegistrationInformation>
>
> </VehicleInformation>
> </AccidentHeader>
> <AccidentHeader>
> <VehicleInformation>
> <damageCodes>AB,CD</damageCodes>
> <damageAmount>200</damageAmount>
> <vin>AEBCDEFGHIJKLMNOPQRSTUV</vin>
> <vehicleMake>Toyota</vehicleMake>
> <vehicleYear>2002</vehicleYear>
>
> <RegistrationInformation>
> </RegistrationInformation>
>
> <RegistrationInformation>
> </RegistrationInformation>
>
> </VehicleInformation>
> </AccidentHeader>
> </XmlInterfaceRecord>
>
> My current defintion....
>
> <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
>
> <xsd:element name="XmlInterfaceRecord" type="XmlInterfaceRecordType"/>
>
> <xsd:complexType name="XmlInterfaceRecordType">
> <xsd:sequence>
> <xsd:element name="AccidentHeader" type ="AccidentHeader"
> minOccurs="0" maxOccurs="unbounded"/>
> </xsd:sequence>
> </xsd:complexType>
>
> <xsd:complexType name="AccidentHeader">
> <xsd:sequence>
> <xsd:element name="VehicleInformation" type="VehicleInfo"/>
> </xsd:sequence>
> </xsd:complexType>
>
> <xsd:complexType name="RegistrationInfo">
> <xsd:sequence>
> <xsd:element name="plateNumber" type="xsd:string"/>
> <xsd:element name="plateIssueState" type="xsd:string"/>
> <xsd:element name="registrationYear" type="xsd:decimal"/>
> </xsd:sequence>
> </xsd:complexType>
>
> <xsd:complexType name="VehicleInfo">
> <xsd:sequence>
> <xsd:element name="vehicleMake" type="xsd:string"
> minOccurs="0" maxOccurs="1"/>
> <xsd:element name="vehicleYear" type="xsd:string"
> minOccurs="0" maxOccurs="1"/>
> <xsd:element name="vin" type="xsd:string"
> minOccurs="0" maxOccurs="1"/>
> <xsd:element name="damageCodes" type="xsd:string"
> minOccurs="0" maxOccurs="1"/>
> <xsd:element name="damageAmount" type="xsd:decimal"
> minOccurs="0" maxOccurs="1"/>
> <xsd:element name="RegistrationInformation" type="RegistrationInfo"
> minOccurs="0" maxOccurs="unbounded"/>
> </xsd:sequence>
> </xsd:complexType>
>
> </xsd:schema>
>
> what I am looking for is a way to define multiple occurences like the
> following ...
>
> <AccidentHeader>
> <VehicleInformation>
> <damageCodes>AB,CD</damageCodes>
> <damageAmount>200</damageAmount>
> <vin>AEBCDEFGHIJKLMNOPQRSTUV</vin>
> <vehicleMake>Toyota</vehicleMake>
> <vehicleYear>2002</vehicleYear>
>
> <RegistrationInformation>
> </RegistrationInformation>
>
> <RegistrationInformation>
> </RegistrationInformation>
>
> </VehicleInformation>
> </AccidentHeader>
> <AccidentHeader>
> <VehicleInformation>
> <damageCodes>AB,CD</damageCodes>
> <damageAmount>200</damageAmount>
> <vin>AEBCDEFGHIJKLMNOPQRSTUV</vin>
> <vehicleMake>Toyota</vehicleMake>
> <vehicleYear>2002</vehicleYear>
>
> <RegistrationInformation>
> </RegistrationInformation>
>
> <RegistrationInformation>
> </RegistrationInformation>
>
> </VehicleInformation>
> </AccidentHeader>
>
> -----Original Message-----
> From: Kohsuke Kawaguchi [mailto:Kohsuke.Kawaguchi_at_Sun.COM]
> Sent: Wednesday, March 26, 2003 7:22 PM
> To: JAXB-INTEREST_at_JAVA.SUN.COM
> Subject: Re: XML Schema questions
>
>
> > Is there a way to set the number of objects created, since some of my
XML
> > files can be very huge?
>
> What you can do is to parse your document by a SAX parser, then from
> your ContentHandler, once you hit <a>, you start forwarding SAX events
> to JAXB. At </a>, you'll ask JAXB to give the object, and you can
> process it, then throw it away.
>
> Repeat this process until you process the entire document. This allows
> you to just keep a small portion of data at any given time. And as a
> result this is much more efficient.
>
>
> > 2. Is there a way to specifiy the main node will be repeated? My
following
> > definition assumes there will be only one root element.
> >
> > <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
> >
> > <xsd:element name="RootNode" type="XType"/>
> >
> > <xsd:complexType name="XType">
> > <xsd:sequence>
> > <xsd:element name="AccidentHeader" type ="AccidentHeaderType"
> > minOccurs="0" maxOccurs="unbounded"/>
> > </xsd:sequence>
> > </xsd:complexType>
> >
> > </xsd:schema>
> >
> > Is there a way to specify the file will have multiple AccidentHeader
nodes
> > (no RootNodelevel)
>
> I'm sorry, I don't understand what you mean. Why you need multiple
> AccidentHeader class? Is this related to your first question?
>
>
>
> regards,
> --
> Kohsuke KAWAGUCHI 408-276-7063 (x17063)
> Sun Microsystems kohsuke.kawaguchi_at_sun.com