NHibernate - 繼承映射每個子類策略的表問題

Question

我們改變了從每個具體類的表到子類策略的映射，現在UnitTests失敗了，但是我不明白爲什麼。

有一個基類文章和一個沒有特定屬性的子文章半成品文章。

Article.hbm.xml：

<?xml version="1.0" encoding="utf-8" ?> 

<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" 

    <class name="Article" table="cvm_anagrafica_articoli" lazy="true" dynamic-insert="true" dynamic-update="true"> 



     <id name="Id" column="id" type="integer"> 
     <generator class="native" > 
      <param name="sequence">seq_anagrafica_articoli</param> 
     </generator> 
     </id> 

     <version name="Version" column="versione" unsaved-value="0"/> 

     <property name="Code" column="codice" /> 
     <property name="Description" column="descrizione" /> 

     <discriminator column="ArticleType" type="string"/> 

     <subclass name="SemifinishedArticle" discriminator-value="S" /> 
    </class> 
</hibernate-mapping> 

SemifinishedArticle.hbm.xml：

<?xml version="1.0" encoding="utf-8" ?> 

<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" 

    <subclass name="SemifinishedArticle" extends="Article" lazy="true" > 


    </subclass> 
</hibernate-mapping> 

SemifinishedArticle.cs

Public Class SemifinishedArticle 
    Inherits Article 

End Class 

錯誤消息：

Initialization method CVM050__Recipe_Management_Test.ArticleMappingTest.MyTestInitialize threw exception. NHibernate.MappingException: NHibernate.MappingException: Coveme.Core.Article.hbm.xml(52,4): XML validation error: The element 'class' in namespace 'urn:nhibernate-mapping-2.2' has invalid child element 'discriminator' in namespace 'urn:nhibernate-mapping-2.2'. List of possible elements expected: 'property, many-to-one, one-to-one, component, dynamic-component, properties, any, map, set, list, bag, idbag, array, primitive-array, join, subclass, joined-subclass, union-subclass, loader, sql-insert, sql-update, sql-delete, filter, resultset, query, sql-query' in namespace 'urn:nhibernate-mapping-2.2'. ---> System.Xml.Schema.XmlSchemaValidationException: The element 'class' in namespace 'urn:nhibernate-mapping-2.2' has invalid child element 'discriminator' in namespace 'urn:nhibernate-mapping-2.2'. List of possible elements expected: 'property, many-to-one, one-to-one, component, dynamic-component, properties, any, map, set, list, bag, idbag, array, primitive-array, join, subclass, joined-subclass, union-subclass, loader, sql-insert, sql-update, sql-delete, filter, resultset, query, sql-query' in namespace 'urn:nhibernate-mapping-2.2'.. 

錯誤堆棧跟蹤：

NHibernate.Cfg.Configuration.LogAndThrow(Exception exception) in d:\CSharp\NH\nhibernate\src\NHibernate\Cfg\Configuration.cs: line 340 
NHibernate.Cfg.Configuration.ValidationHandler(Object o, ValidationEventArgs args) in d:\CSharp\NH\nhibernate\src\NHibernate\Cfg\Configuration.cs: line 1838 
System.Xml.Schema.XmlSchemaValidator.SendValidationEvent(ValidationEventHandler eventHandler, Object sender, XmlSchemaValidationException e, XmlSeverityType severity) 
System.Xml.Schema.XmlSchemaValidator.ElementValidationError(XmlQualifiedName name, ValidationState context, ValidationEventHandler eventHandler, Object sender, String sourceUri, Int32 lineNo, Int32 linePos, XmlSchemaSet schemaSet) 
System.Xml.Schema.XmlSchemaValidator.ValidateElementContext(XmlQualifiedName elementName, Boolean& invalidElementInContext) 
System.Xml.Schema.XmlSchemaValidator.ValidateElement(String localName, String namespaceUri, XmlSchemaInfo schemaInfo, String xsiType, String xsiNil, String xsiSchemaLocation, String xsiNoNamespaceSchemaLocation) 
System.Xml.XsdValidatingReader.ProcessElementEvent() 
System.Xml.XsdValidatingReader.ProcessReaderEvent() 
System.Xml.XsdValidatingReader.Read() 
System.Xml.XmlLoader.LoadNode(Boolean skipOverWhitespace) 
System.Xml.XmlLoader.LoadDocSequence(XmlDocument parentDoc) 
System.Xml.XmlLoader.Load(XmlDocument doc, XmlReader reader, Boolean preserveWhitespace) 
System.Xml.XmlDocument.Load(XmlReader reader) 
NHibernate.Cfg.Configuration.LoadMappingDocument(XmlReader hbmReader, String name) in d:\CSharp\NH\nhibernate\src\NHibernate\Cfg\Configuration.cs: line 1776 
NHibernate.Cfg.Configuration.AddXmlReader(XmlReader hbmReader, String name) in d:\CSharp\NH\nhibernate\src\NHibernate\Cfg\Configuration.cs: line 1813 
NHibernate.Cfg.Configuration.AddInputStream(Stream xmlInputStream, String name) in d:\CSharp\NH\nhibernate\src\NHibernate\Cfg\Configuration.cs: line 628 
NHibernate.Cfg.Configuration.AddResource(String path, Assembly assembly) in d:\CSharp\NH\nhibernate\src\NHibernate\Cfg\Configuration.cs: line 666 
NHibernate.Cfg.Configuration.AddAssembly(Assembly assembly) in d:\CSharp\NH\nhibernate\src\NHibernate\Cfg\Configuration.cs: line 761 
CVM050__Recipe_Management_Test.DbTestsBase`1.Init(Assembly[] assembliesWithMappings) in C:\UsersData\jcocchi\CVM050 - Recipe Management\Trunk\src\CVM050 -Recipe Management Test\DBTestsBase.cs: line 44 
CVM050__Recipe_Management_Test.ArticleMappingTest.MyTestInitialize() in C:\UsersData\jcocchi\CVM050 - Recipe Management\Trunk\src\CVM050 -Recipe Management Test\ArticleMappingTest.cs: line 58 

謝謝你們

Answer 1

在article.hbm.xml爲什麼你有嗎？

<subclass name="SemifinishedArticle" discriminator-value="S" /> 

這應該是SemifinishedArticle.hbm.xml

Answer 2

1. SemifinishedArticle.hbm.xml是多餘的（它已經與沿條定義）
2. <discriminator>去<id>和<version>之間。訂單在NH模式中很重要。

無論如何，你正在設置一個半成品類的問題： 當它完成時你要做什麼？刪除它並插入一篇文章？請記住，您無法更改對象的類別。

最好添加一個ArticleState屬性。