I'm trying to get a simple table-per-class hierarchy test working but I get an error that the <discriminator> tag is invalid. I've looked at online examples and it looks like my mapping file is correct. Any help?
Note: the object hierarchy has PhysicalDevice as an abstract base class with Firewall, Hub, and Router as classes that inherit from PhysicalDevice. One table, tblDevice, is used to persist all classes; it has a discriminator field, MyTypeName. Note2: I'm running a test to try and determine if the discriminatory column is filled in with the class name when I save a specific class -- e.g. a Router.
Hibernate version: It's 1.2.0.GA merged with the NH-466 patch (I built a custom version because I needed the 'join' tag)
Mapping documents:
<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" default-lazy="false">
<class name="DomainModel.Device.PhysicalDevice, DomainModel" table="dbo.tblDevice">
<!-- Primary Key -->
<id type="Int32" column="ID" name="ID" unsaved-value="null">
<generator class="identity"></generator>
</id>
<!-- Simple properties -->
<property name="Name" column="DeviceName"/>
<!-- Inheritance: Table per class hierarchy -->
<discriminator column="MyTypeName"/>
<subclass name="DomainModel.Device.Firewall, DomainModel" discriminator-value="Firewall">
</subclass>
<subclass name="DomainModel.Device.Hub, DomainModel" discriminator-value="Hub">
</subclass>
<subclass name="DomainModel.Device.Router, DomainModel" discriminator-value="Router">
</subclass>
</class>
</hibernate-mapping>
Code between sessionFactory.openSession() and session.close():
PhysicalDevice physicalDevice = new Router();
session.Save(physicalDevice);
session.Flush();
Full stack trace of any exception that occurs:
NHibernate.MappingException was unhandled by user code
Message="DAL.nHib.MapFiles.PhysicalDevice.hbm.xml(15,6): 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:
'urn:nhibernate-mapping-2.2:property
urn:nhibernate-mapping-2.2:many-to-one urn:nhibernate-mapping-2.2:one-to-one
urn:nhibernate-mapping-2.2:component urn:nhibernate-mapping-2.2:dynamic-component
urn:nhibernate-mapping-2.2:any urn:nhibernate-mapping-2.2:map urn:nhibernate-mapping-2.2:set
urn:nhibernate-mapping-2.2:list urn:nhibernate-mapping-2.2:bag urn:nhibernate-mapping-2.2:idbag
urn:nhibernate-mapping-2.2:array urn:nhibernate-mapping-2.2:primitive-array urn:nhibernate-mapping-2.2:subclass urn:nhibernate-mapping-2.2:joined-subclass urn:nhibernate-mapping-2.2:loader urn:nhibernate-mapping-2.2:sql-insert urn:nhibernate-mapping-2.2:sql-update urn:nhibernate-mapping-2.2:sql-delete urn:nhibernate-mapping-2.2:filter'."
Source="NHibernate"
StackTrace:
at NHibernate.Cfg.Configuration.LogAndThrow(MappingException me) in C:\RemoteNHibernate\src\NHibernate\Cfg\Configuration.cs:line 257
at NHibernate.Cfg.Configuration.ValidationHandler(Object o, ValidationEventArgs args) in C:\RemoteNHibernate\src\NHibernate\Cfg\Configuration.cs:line 1658
at System.Xml.Schema.XmlSchemaValidator.SendValidationEvent(ValidationEventHandler eventHandler, Object sender, XmlSchemaValidationException e, XmlSeverityType severity)
at System.Xml.Schema.XmlSchemaValidator.ElementValidationError(XmlQualifiedName name, ValidationState context, ValidationEventHandler eventHandler, Object sender, String sourceUri, Int32 lineNo, Int32 linePos, Boolean getParticles)
at System.Xml.Schema.XsdValidator.ValidateChildElement()
at System.Xml.Schema.XsdValidator.ValidateElement()
at System.Xml.Schema.XsdValidator.Validate()
at System.Xml.XmlValidatingReaderImpl.ProcessCoreReaderEvent()
at System.Xml.XmlValidatingReaderImpl.Read()
at System.Xml.XmlValidatingReader.Read()
at System.Xml.XmlLoader.LoadNode(Boolean skipOverWhitespace)
at System.Xml.XmlLoader.LoadDocSequence(XmlDocument parentDoc)
at System.Xml.XmlLoader.Load(XmlDocument doc, XmlReader reader, Boolean preserveWhitespace)
at System.Xml.XmlDocument.Load(XmlReader reader)
at NHibernate.Cfg.Configuration.LoadMappingDocument(XmlTextReader hbmReader, String name) in C:\RemoteNHibernate\src\NHibernate\Cfg\Configuration.cs:line 1614
at NHibernate.Cfg.Configuration.AddXmlReader(XmlTextReader hbmReader, String name) in C:\RemoteNHibernate\src\NHibernate\Cfg\Configuration.cs:line 1644
at NHibernate.Cfg.Configuration.AddInputStream(Stream xmlInputStream, String name) in C:\RemoteNHibernate\src\NHibernate\Cfg\Configuration.cs:line 490
at NHibernate.Cfg.Configuration.AddResource(String path, Assembly assembly) in C:\RemoteNHibernate\src\NHibernate\Cfg\Configuration.cs:line 527
at NHibernate.Cfg.Configuration.AddResources(Assembly assembly, IList resources, Boolean skipOrdering) in C:\RemoteNHibernate\src\NHibernate\Cfg\Configuration.cs:line 658
at NHibernate.Cfg.Configuration.AddAssembly(Assembly assembly, Boolean skipOrdering) in C:\RemoteNHibernate\src\NHibernate\Cfg\Configuration.cs:line 642
at NHibernate.Cfg.Configuration.AddAssembly(Assembly assembly) in C:\RemoteNHibernate\src\NHibernate\Cfg\Configuration.cs:line 604
at NHibernate.Cfg.Configuration.AddAssembly(String assemblyName) in C:\RemoteNHibernate\src\NHibernate\Cfg\Configuration.cs:line 586
at DAL.nHib.DataAccessNHib.GetFactory() in C:\Projects\MyNHibTests\DAL\nHib\DALAccessNHib.cs:line 23
at DAL.nHib.DALNHibBase.getSession() in C:\Projects\MyNHibTests\DAL\nHib\DALNHibBase.cs:line 18
at DAL.nHib.DALNHibBase.save(Object o) in C:\Projects\MyNHibTests\DAL\nHib\DALNHibBase.cs:line 26
at DAL.nHib.DeviceDALNHib.savePhysicalDevice(PhysicalDevice physicalDevice) in C:\Projects\MyNHibTests\DAL\nHib\DeviceDALNHib.cs:line 34
at BAL.BusinessLogicTest.createAndSaveDevice(String deviceName, String deviceTypeName) in C:\Projects\MyNHibTests\BAL\BusinessLogicTest.cs:line 50
at _Default.Button_StartTest_Click(Object sender, EventArgs e) in c:\Projects\MyNHibTests\NHibTestWebSite\Default.aspx.cs:line 35
at System.Web.UI.WebControls.Button.OnClick(EventArgs e)
at System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument)
at System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument)
at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument)
at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
Name and version of the database you are using: Microsoft SQL Server 2005; Version: 9.00.1406.00; Product Level: RTM; Edition: Developer Edition
Thanks,
Bill
Login
FAQ
Search
