Problem:
I have a class Company. Inheriting from this class: subclass Broker and subclass Insurer.
I have a company which can be Broker and Insurer, depending on the circumstances. This works, until I have a contract where the Broker is the same company as the Insurer.
Trying to access this contract I get an error (see below)
I understand that Nhibernate internally keeps track of objects and when I load the Broker-object, it also loads the information from the Company-object and 'casts' it to a Broker. When afterwards I try to load the Insurer-object which tries to load the same Company-object, it has a problem 'casting' this company-object (which has been 'cast' to a Broker-object). I do not see a solution so I turn to you friendly people...
Error:
Code:
{"Object with id: 46 was not of the specified sublcass: POS.URS.POS_Insurance_BL.Insurer (loading object was of wrong class)"}
Full stack trace of any exception that occurs:" at NHibernate.Loader.Loader.InstanceAlreadyLoaded(IDataReader rs, Int32 i, ILoadable persister, String suffix, Key key, Object obj, LockMode lockMode, ISessionImplementor session)\r\n at NHibernate.Loader.Loader.GetRow(IDataReader rs, ILoadable[] persisters, String[] suffixes, Key[] keys, Object optionalObject, Key optionalObjectKey, LockMode[] lockModes, IList hydratedObjects, ISessionImplementor session)\r\n at NHibernate.Loader.Loader.GetRowFromResultSet(IDataReader resultSet, ISessionImplementor session, QueryParameters queryParameters, IList hydratedObjects, Object optionalObject, Object optionalId, Key[] keys, Boolean returnProxies)\r\n at NHibernate.Loader.Loader.DoQuery(ISessionImplementor session, QueryParameters queryParameters, Object optionalObject, Object optionalId, Object[] optionalCollectionKeys, Boolean returnProxies)\r\n at NHibernate.Loader.Loader.DoQueryAndInitializeNonLazyCollections(ISessionImplementor session, QueryParameters queryParameters, Object optionalObject, Object optionalId, Object[] optionalCollectionKeys, Boolean returnProxies)\r\n at NHibernate.Loader.Loader.DoList(ISessionImplementor session, QueryParameters queryParameters)\r\n at NHibernate.Loader.Loader.List(ISessionImplementor session, QueryParameters queryParameters, ISet querySpaces, IType[] resultTypes)\r\n at NHibernate.Loader.CriteriaLoader.List(ISessionImplementor session)\r\n at NHibernate.Impl.SessionImpl.Find(CriteriaImpl criteria)\r\n at NHibernate.Impl.CriteriaImpl.List()\r\n at POS.URS.POS_Library_BL.NHibFactory`1.GetList(String sortedBy) in C:\\Projects\\POS\\POS_URS\\SOURCE\\POS_Library_BL\\NHibFactory.cs:line 66\r\n
Mapping documents:Code:
<class
name='POS.URS.POS_HRM_BL.Company, POS_HRM_BL'
table='tbl_Company'>
<id
name='Id'
access='field.pascalcase-underscore'
column='Company_Id'
type='Int32'>
<generator
class='identity' />
</id>
<property
name='Name'
type='String'
column='Company_Name' />
<property
name='Address'
type='String'
column='Company_Address' />
<property
name='PostalCode'
type='String'
column='Company_Postal_Code' />
<property
name='City'
type='String'
column='Company_City' />
<property
name='Code'
type='String'
column='Company_Cd' />
<property
name='Telephone'
type='String'
column='Company_Telephone_Nmbr' />
<many-to-one
name='Country'
class='POS.URS.POS_HRM_BL.Country, POS_HRM_BL'
column='Company_Country_Id' />
</class>
<joined-subclass
name='POS.URS.POS_Insurance_BL.Broker, POS_Insurance_BL'
extends='POS.URS.POS_HRM_BL.Company, POS_HRM_BL'
table='Broker'>
<key
column='Company' />
<bag
name='InsurancePoliciesCompany'
table='InsurancePolicyCompany'
lazy='true'
inverse='true'>
<key
column='Broker' />
<one-to-many
class='POS.URS.POS_Insurance_BL.InsurancePolicyCompany, POS_Insurance_BL' />
</bag>
</joined-subclass>
<joined-subclass
name='POS.URS.POS_Insurance_BL.Insurer, POS_Insurance_BL'
extends='POS.URS.POS_HRM_BL.Company, POS_HRM_BL'
table='Insurer'>
<key
column='Company' />
<bag
name='InsurancePoliciesCompany'
table='InsurancePolicyCompany'
lazy='true'
inverse='true'>
<key
column='Insurer' />
<one-to-many
class='POS.URS.POS_Insurance_BL.InsurancePolicyCompany, POS_Insurance_BL' />
</bag>
</joined-subclass>
<class
name='POS.URS.POS_Insurance_BL.InsurancePolicyCompany, POS_Insurance_BL'
table='InsurancePolicyCompany'>
<id
name='Id'
access='field.pascalcase-underscore'
column='InsurancePolicyCompanyId'>
<generator
class='identity' />
</id>
<many-to-one
name='InsurancePolicyGroup'
class='POS.URS.POS_Insurance_BL.InsurancePolicyGroup, POS_Insurance_BL'
column='InsurancePolicyGroup' />
<many-to-one
name='InternalCompany'
class='POS.URS.POS_HRM_BL.InternalCompany, POS_HRM_BL'
column='InternalCompany' />
<many-to-one
name='Insurer'
class='POS.URS.POS_Insurance_BL.Insurer, POS_Insurance_BL'
column='Insurer' />
<many-to-one
name='Broker'
class='POS.URS.POS_Insurance_BL.Broker, POS_Insurance_BL'
column='Broker' />
<property
name='ContractNumber'
type='String'
column='ContractNumber' />
<property
name='StartDate'
type='Nullables.NHibernate.NullableDateTimeType, Nullables.NHibernate'
column='InsurancePolicyCompanyStartDate' />
<property
name='EndDate'
type='Nullables.NHibernate.NullableDateTimeType, Nullables.NHibernate'
column='InsurancePolicyCompanyEndDate' />
<bag
name='TariffsOfPolicyCompany'
table='TariffOfPolicyCompany'
lazy='true'
inverse='true'>
<key
column='InsurancePolicyCompany' />
<one-to-many
class='POS.URS.POS_Insurance_BL.TariffOfPolicyCompany, POS_Insurance_BL' />
</bag>
<bag
name='InsurancePoliciesIndividual'
table='InsurancePolicyIndividual'
lazy='true'
inverse='true'>
<key
column='InsurancePolicyCompany' />
<one-to-many
class='POS.URS.POS_Insurance_BL.InsurancePolicyIndividual, POS_Insurance_BL' />
</bag>
</class>
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