Hi Jean,
i suggest you to first add your example to the jira issue
http://jira.codehaus.org/browse/CASTOR-677 as the example of dhooker has
been lost when migrating from bugzilla to jira.
As far as it seams to me it should be quite easy to fix that bug in
SourceGenerator. Therefore I suggest you to prepare a fix for that bug.
The more you can offer to the castor commiters the bigger is the chance
to get this fixed with one of the next releases.
Having said that I don't know the XML and SourceGenerator part of castor
very well as I'm focused on the database side.
Ralf
Jean Witte schrieb:
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());
}
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