I reply to myself : This seems to be a known bug (issue #677) "Problem with xsi:type and inheritance" Created: 16/Feb/04 03:37 PM http://jira.codehaus.org/browse/CASTOR-677
But I am still open to any suggestion... Thanks in advance, JW. --- Jean Witte <[EMAIL PROTECTED]> wrote: > Hello, > > I need to read a document which contents derived types with the > "xsi:type" attribute. > > I've tried to implement the example given in the XML Schema > Recommandation. > see : 4.3 Using Derived Types in Instance Documents > http://www.w3.org/TR/xmlschema-0/#UseDerivInInstDocs > (see my sources below) > > I generate the source code from the xsd with the SourceGenerator. > When I unmarshal the document I get the following error : > unable to add 'shipTo' to <purchaseOrder> due to the following > exception: >>>--- Begin Exception ---<<< > java.lang.IllegalStateException: java.lang.ClassCastException > at ipo.binding.PurchaseOrderTypeDescriptor$2.setValue > PurchaseOrderTypeDescriptor.java:121) > at > org.exolab.castor.xml.UnmarshalHandler.endElement(UnmarshalHandler.java:1066) > ... > > But if I make the following to the source code it works : > > Class PurchaseOrderType > ........ private ipo.binding.ShipTo _shipTo; > >change> private ipo.binding.Address _shipTo; > ........ public void setShipTo(ipo.binding.ShipTo shipTo) > >change> public void setShipTo(ipo.binding.Address shipTo) > ........ public ipo.binding.ShipTogetShipTo() > >change> public ipo.binding.Address getShipTo() > Class PurchaseOrderTypeDescriptor > ........ target.setShipTo( (ipo.binding.ShipTo) value); > >change> target.setShipTo( (ipo.binding.Address) value); > (and idem for BillTo) > > > My question is : do you have a solution to unmarshall this kind of > document without modifying the source code ? > (or did I miss something ?) > > Thanks a lot for your help, > Jean Witte > > > -- ipo.xml -------------------------------- > <?xml version="1.0"?> > <ipo:purchaseOrder orderDate="1999-12-01" > xmlns:ipo="http://www.example.com/IPO"; > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; > xsi:schemaLocation="http://www.example.com/IPO > ipo.xsd"> > <shipTo exportCode="1" xsi:type="ipo:UKAddress"> > <name>Helen Zoe</name> > <street>47 Eden Street</street> > <city>Cambridge</city> > <!--<postcode>CB1 1JR</postcode>--> > </shipTo> > <billTo xsi:type="ipo:USAddress"> > <name>Robert Smith</name> > <street>8 Oak Avenue</street> > <city>Old Town</city> > <state>AK</state> > <zip>95819</zip> > </billTo> > <items> > <item partNum="833-AA"> > <productName>Lapis necklace</productName> > <quantity>1</quantity> > <USPrice>99.95</USPrice> > <ipo:comment>Want this for the holidays</ipo:comment> > <shipDate>1999-12-05</shipDate> > </item> > </items> > </ipo:purchaseOrder> > > > -- ipo.xsd -------------------------------- > <schema xmlns="http://www.w3.org/2001/XMLSchema"; > xmlns:ipo="http://www.example.com/IPO"; > targetNamespace="http://www.example.com/IPO";> > <annotation> > <documentation xml:lang="en"> > International Purchase order schema for Example.com > Copyright 2000 Example.com. All rights reserved. > </documentation> > </annotation> > <!-- include address constructs --> > <include schemaLocation="address.xsd"/> > <element name="purchaseOrder" type="ipo:PurchaseOrderType"/> > <element name="comment" type="string"/> > <complexType name="PurchaseOrderType"> > <sequence> > <element name="shipTo" type="ipo:Address"/> > <element name="billTo" type="ipo:Address"/> > <element ref="ipo:comment" minOccurs="0"/> > <element name="items" type="ipo:ItemsType"/> > </sequence> > <attribute name="orderDate" type="date"/> > </complexType> > <complexType name="ItemsType"> > <sequence> > <element name="item" minOccurs="0" maxOccurs="unbounded"> > <complexType> > <sequence> > <element name="productName" type="string"/> > <element name="quantity"> > <simpleType> > <restriction base="positiveInteger"> > <maxExclusive value="100"/> > </restriction> > </simpleType> > </element> > <element name="USPrice" type="decimal"/> > <element ref="ipo:comment" minOccurs="0"/> > <element name="shipDate" type="date" minOccurs="0"/> > </sequence> > <attribute name="partNum" type="ipo:SKU" use="required"/> > </complexType> > </element> > </sequence> > </complexType> > <simpleType name="SKU"> > <restriction base="string"> > <pattern value="\d{3}-[A-Z]{2}"/> > </restriction> > </simpleType> > </schema> > > > -- address.xsd -------------------------------- > <schema xmlns="http://www.w3.org/2001/XMLSchema"; > xmlns:ipo="http://www.example.com/IPO"; > targetNamespace="http://www.example.com/IPO";> > <annotation> > <documentation xml:lang="en"> > Addresses for International Purchase order schema > Copyright 2000 Example.com. All rights reserved. > </documentation> > </annotation> > <complexType name="Address"> > <sequence> > <element name="name" type="string"/> > <element name="street" type="string"/> > <element name="city" type="string"/> > </sequence> > </complexType> > <complexType name="USAddress"> > <complexContent> > <extension base="ipo:Address"> > <sequence> > <element name="state" type="ipo:USState"/> > <element name="zip" type="positiveInteger"/> > </sequence> > </extension> > </complexContent> > </complexType> > <complexType name="UKAddress"> > <complexContent> > <extension base="ipo:Address"> > <sequence> > <!--<element name="postcode" type="ipo:UKPostcode"/>--> > </sequence> > <attribute name="exportCode" type="positiveInteger" > fixed="1"/> > </extension> > </complexContent> > </complexType> > <!-- other Address derivations for more countries --> > <simpleType name="USState"> > <restriction base="string"> > <enumeration value="AK"/> > <enumeration value="AL"/> > <enumeration value="AR"/> > <!-- and so on ... --> > </restriction> > </simpleType> > <!-- simple type definition for UKPostcode --> > </schema> > > > -- Main.java -------------------------------- > public static void main(String[] args) throws IOException, > MarshalException, ValidationException { > File inputFile = new File("./structures/w3c-rec/ipo.xml"); > InputSource source = new InputSource(new > FileInputStream(inputFile)); > source.setEncoding("utf-8"); > source.setSystemId(inputFile.getPath()); > PurchaseOrder po = (PurchaseOrder) new > Unmarshaller(PurchaseOrder.class).unmarshal(source); > System.out.println("Street : " + po.getBillTo().getStreet()); > System.out.println("Street : " + ((USAddress) > po.getBillTo()).getState()); > } > > > > __________________________________________________ > Do You Yahoo!? > Tired of spam? 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