Mix Static MoXy and Dynamic Moxy - eclipselink

Question

I am trying to check one concept of mixing Static moxy and Dynamic moxy.
I have two schemas.
One is the base schema(emp.xsd) which is not going to change often,so I used the static Moxy and generated classes for it, added those classes to classpath, and used these concrete types(e.g. SearchManager) in my program.
Another is the derived schema(Manager.xsd) which is going to change often, so I plan to use Dynamic Moxy to generate the dynamic types on the fly.I am facing some issues mentioned below.
Is this kind of mix of static and dynamic moxy possible?
code snippet:
emp.xsd(parent schema):
<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:emp="Employee:2:0" targetNamespace="Employee:2:0"
elementFormDefault="unqualified" attributeFormDefault="unqualified"
version="2.0">
<xsd:element name="searchManager" type="emp:SearchManager" />
<xsd:complexType name="SearchManager">
<xsd:sequence>
<xsd:element name="CompanyName" type="xsd:string" />
<xsd:element name="objects" type="emp:Employee" minOccurs="0" maxOccurs="unbounded" />
</xsd:sequence>
</xsd:complexType>
<xsd:complexType name="Employee">
<xsd:complexContent>
<xsd:extension base="emp:Organization">
<xsd:sequence>
<xsd:element name="EmpId" type="xsd:string" minOccurs="0" />
</xsd:sequence>
</xsd:extension>
</xsd:complexContent>
</xsd:complexType>
<xsd:complexType name="Projects">
<xsd:complexContent>
<xsd:extension base="emp:Organization"/>
</xsd:complexContent>
</xsd:complexType>
<xsd:complexType name="Organization">
<xsd:annotation>
<xsd:documentation>Abstract base class </xsd:documentation>
</xsd:annotation>
</xsd:complexType>
</xsd:schema>
manager.xsd (Child schema):
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema targetNamespace="Manager:1:0" xmlns:emp="Employee:2:0"
xmlns:manager="Manager:1:0" xmlns="http://www.w3.org/2001/XMLSchema"
xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xs="http://www.w3.org/2001/XMLSchema"
elementFormDefault="unqualified" attributeFormDefault="unqualified"
version="1.0">
<!-- schema imports -->
<xs:import namespace="Employee:2:0" schemaLocation="emp.xsd" />
<xs:complexType name="Manager">
<xs:annotation>
<xs:documentation>
Definition of class Employee
</xs:documentation>
</xs:annotation>
<xs:complexContent>
<xs:extension base="emp:Employee">
<xs:sequence>
<xs:element name="teamSize" type="xsd:int" minOccurs="0" />
<xs:element name="project1" type="manager:Project1"
minOccurs="0" maxOccurs="unbounded" />
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
<xs:complexType name="Project1">
<xs:complexContent>
<xs:extension base="manager:Developement">
<xs:sequence>
<xs:element name="type" type="xsd:int" minOccurs="0" />
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
<xs:complexType name="Developement">
<xs:annotation>
<xs:documentation>
Abstract base class for an Development
</xs:documentation>
</xs:annotation>
<xs:complexContent>
<xs:extension base="emp:Projects"/>
</xs:complexContent>
</xs:complexType>
</xs:schema>
Java code for marshalling and unmarshalling:
public class XMLToJSONUsingBaseClasses {
public static void main(String[] args) {
FileInputStream xsdInputStream;
try {
xsdInputStream = new FileInputStream("Manager.xsd");
DynamicJAXBContext jaxbContext = DynamicJAXBContextFactory.createContextFromXSD(xsdInputStream, new MyEntityResolver(), null, null);
FileInputStream xmlInputStream = new FileInputStream("manager.xml");
Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();
SearchManager manager = (SearchManager) unmarshaller.unmarshal(xmlInputStream);
}catch (JAXBException e) {
e.printStackTrace();
}catch (FileNotFoundException e) {
e.printStackTrace();
}
}
}
manager.xml
<emp:searchManager xmlns:emp="Employee:2:0"
xmlns:manager="Manager:1:0">
<CompanyName>Test</CompanyName>
<objects xmlns:ns2="Manager:1:0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="ns2:Manager">
<EmpId>123456</EmpId>
<teamSize>10</teamSize>
<project1>
<type>1</type>
</project1>
</objects>
</emp:searchManager>
exception.
Exception Description: An error occurred unmarshalling the document
Internal Exception: java.lang.ClassCastException: employee._2._0.SearchManager cannot be cast to org.eclipse.persistence.internal.dynamic.DynamicEntityImpl
at org.eclipse.persistence.exceptions.XMLMarshalException.unmarshalException(XMLMarshalException.java:114)
at org.eclipse.persistence.internal.oxm.record.SAXUnmarshaller.convertSAXException(SAXUnmarshaller.java:996)
at org.eclipse.persistence.internal.oxm.record.SAXUnmarshaller.unmarshal(SAXUnmarshaller.java:903)
at org.eclipse.persistence.oxm.XMLUnmarshaller.unmarshal(XMLUnmarshaller.java:659)
at org.eclipse.persistence.jaxb.JAXBUnmarshaller.unmarshal(JAXBUnmarshaller.java:585)
... 2 more
Caused by: java.lang.ClassCastException: employee._2._0.SearchManager cannot be cast to org.eclipse.persistence.internal.dynamic.DynamicEntityImpl
at org.eclipse.persistence.internal.dynamic.ValuesAccessor.setAttributeValueInObject(ValuesAccessor.java:60)
at org.eclipse.persistence.oxm.mappings.XMLDirectMapping.setAttributeValueInObject(XMLDirectMapping.java:408)
at org.eclipse.persistence.internal.oxm.record.ObjectUnmarshalContext.setAttributeValue(ObjectUnmarshalContext.java:41)
at org.eclipse.persistence.internal.oxm.record.UnmarshalRecordImpl.setAttributeValue(UnmarshalRecordImpl.java:1400)
at org.eclipse.persistence.internal.oxm.XMLDirectMappingNodeValue.endElement(XMLDirectMappingNodeValue.java:193)
at org.eclipse.persistence.internal.oxm.record.UnmarshalRecordImpl.endElement(UnmarshalRecordImpl.java:1026)
at org.eclipse.persistence.internal.oxm.record.XMLStreamReaderReader.parseEvent(XMLStreamReaderReader.java:154)
at org.eclipse.persistence.internal.oxm.record.XMLStreamReaderReader.parse(XMLStreamReaderReader.java:99)
at org.eclipse.persistence.internal.oxm.record.XMLStreamReaderReader.parse(XMLStreamReaderReader.java:86)
at org.eclipse.persistence.internal.oxm.record.SAXUnmarshaller.unmarshal(SAXUnmarshaller.java:895)
... 4 more

Answer 1

Note: I'm the EclipseLink JAXB (MOXy) lead and a member of the JAXB (JSR-222) expert group.
We do not currently support mixing static and dynamic in that way. Could you please use the link below to enter an enhancement request for your use case:
https://bugs.eclipse.org/bugs/enter_bug.cgi?product=EclipseLink