静态MoXy与动态Moxy的混合

Question

我试图检查一个概念混合静态moxy和动态moxy。我有两个模式。

1. 一个是基本模式(emp.xsd)，它不会经常更改，因此我使用静态Moxy并为其生成类，将这些类添加到类路径中，并在我的程序中使用这些具体类型(例如SearchManager)。
2. 另一个是派生模式(Manager.xsd)，它将经常发生变化，因此我计划使用Dynamic生成动态类型，我面临下面提到的一些问题。

这种静态和动态的混合是否可能？

代码片段：

Emp.xsd(父模式)：

<?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 (儿童模式)：

<?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>

用于编组和解编组的Java代码：

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>

异常。

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

备注：，我是EclipseLink JAXB (MOXy)的负责人，也是JAXB (JSR-222)专家组的成员。

我们目前不支持以这种方式混合静态和动态。请使用下面的链接为您的用例输入增强请求：

• bug.cgi?product=EclipseLink