Marc DINV Jambert
07/11/2002 12:44
Pour : [EMAIL PROTECTED]
cc :
Objet : xsi-type DISAPPEARED when using collections!
Hello
I am using the following basic schema so as to generate bean classes through
SourceGenerator
-------------------------------
<!-- Description of a place -->
<xsd:complexType name="placeBean">
<xsd:sequence>
<xsd:element name="identifier" type="xsd:string"/>
<xsd:element name="memo" type="xsd:string"/>
</xsd:sequence>
</xsd:complexType>
<!-- Description of a step -->
<xsd:complexType name="stepBean">
<xsd:sequence>
<xsd:element name="fromPlace" type="placeBean"/>
<xsd:element name="toPlace" type="placeBean"/>
<xsd:element name="duration" type="xsd:duration"/>
</xsd:sequence>
</xsd:complexType>
<!-- Description of a traject -->
<xsd:complexType name="trajectBean">
<xsd:sequence>
<xsd:element name="fromPlace" type="placeBean" />
<xsd:element name="toPlace" type="placeBean"/>
</xsd:sequence>
</xsd:complexType>
<!-- Description of an itinerary -->
<xsd:complexType name="itineraryBean">
<xsd:sequence>
<xsd:element name="step" type="stepBean" maxOccurs="unbounded"
minOccurs="1"/>
</xsd:sequence>
</xsd:complexType>
-------------------------------
Then I run the following Test case:
-------------------------------
public void testMarshalling () throws Exception
{
Place fromPlace1 = new Place ("LieuDepart1", "Precisions");
Place toPlace1 = new Place ("LieuArrivee1", "Precisions");
// Duration of 1 hour and 30 minutes.
Duration duration1 = new Duration ("PT1H30M");
Step step1 = new Step (fromPlace1, toPlace1, duration1);
Place fromPlace2 = new Place ("LieuDepart2", "Precisions");
Place toPlace2 = new Place ("LieuArrivee2", "Precisions");
// Duration of 30 minutes.
Duration duration2 = new Duration ("PT30M");
Step step2 = new Step (fromPlace2, toPlace2, duration2);
Itinerary originalItinerary = new Itinerary ();
originalItinerary.addStep (step1);
originalItinerary.addStep (step2);
StringWriter writer = new StringWriter ();
Marshaller.marshal (originalItinerary, writer);
StringReader reader = new StringReader (writer.toString ());
Itinerary unmarshalledItinerary = new Itinerary ();
Unmarshaller unmarshaller = new Unmarshaller (unmarshalledItinerary);
unmarshaller.unmarshal (reader);
Assert.assertEquals (originalItinerary, unmarshalledItinerary);
}
// Place inherits from PlaceBean
// Step inherits from StepBean
// Itinerary inherits from ItineraryBean
-------------------------------
Finally I end up with the following exception :
----------------------------------------
[java] 1) testMarshalling(carsher.test.model.ItineraryTest)
[java] org.xml.sax.SAXException: unable to find FieldDescriptor for 'from-place'
in ClassDescriptor of stepBean
[java] at org.exolab.castor.xml.UnmarshalHandler.startElement(Unknown
Source)
[java] at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown
Source)
[java] at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown Source)
[java] at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown
Source)
[java] at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
[java] at org.apache.xerces.parsers.DTDConfiguration.parse(Unknown Source)
[java] at org.apache.xerces.parsers.DTDConfiguration.parse(Unknown Source)
[java] at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
[java] at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
[java] at org.exolab.castor.xml.Unmarshaller.unmarshal(Unknown Source)
[java] at org.exolab.castor.xml.Unmarshaller.unmarshal(Unknown Source)
[java] at
carsher.test.model.ItineraryTest.testMarshalling(ItineraryTest.java:50)
[java] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[java] at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[java] at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[java] at carsher.test.AllTests.main(AllTests.java:40)
----------------------------------------
When I look into generated xml data, I notice that xsi:type="java:carsher.model.Step"
is not present in 'step' element (which explains why exception
is thrown)
----------------------------------------
<itinerary valid="true" step-count="2">
<step valid="true">
<from-place valid="true" xsi:type="java:carsher.model.Place"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";>
<memo>Precisions</memo>
<identifier>LieuDepart1</identifier>
</from-place>
<to-place valid="true" xsi:type="java:carsher.model.Place"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";>
<memo>Precisions</memo>
<identifier>LieuArrivee1</identifier>
</to-place>
<duration>PT1H30M</duration>
</step>
<step valid="true">
<from-place valid="true" xsi:type="java:carsher.model.Place"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";>
<memo>Precisions</memo>
<identifier>LieuDepart2</identifier>
</from-place>
<to-place valid="true" xsi:type="java:carsher.model.Place"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";>
<memo>Precisions</memo>
<identifier>LieuArrivee2</identifier>
</to-place>
<duration>PT30M</duration>
</step>
</itinerary>
----------------------------------------
It seems to me that there is a relation with using add method on generated
collections... but I don't know what to do to resolve this!
I am using castor 0.9.4.1 ang I generate my sources with j2 collections type.
Thanks everybody
Marc
----------------
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