当 Id 位于抽象基类中时,NHibernate 映射出现问题
我对 nhibernate 很陌生,在遇到这个问题之前我一直做得很好,它看起来像一个 NHibernate bug,但作为它的新手,这肯定是我的错
让这个基类来完成所有的 Id 和相等性东西
public abstract class ObjetoConId
{
public ObjetoConId()
{
Id=NewId();
}
public virtual Guid Id {get;private set;}
public override bool Equals(object o)
{
if (Object.ReferenceEquals(this,o))
return true;
if (o==null) return false;
ObjetoConId oId;
oId= o as ObjetoConId;
if (!Object.ReferenceEquals(oId,null))
return (Id.Equals(oId.Id));
return (base.Equals(o));
}
public override int GetHashCode()
{
byte[] bId;
bId=Id.ToByteArray();
return ((Int32)(bId[8]^bId[12])<<24) +
((Int32)(bId[9]^bId[13])<<16) +
((Int32)(bId[10]^bId[14])<<8) +
((Int32)(bId[11]^bId[15]));
}
public virtual bool Equals(ObjetoConId o)
{
if (Object.ReferenceEquals(this,o))
return true;
if (Object.ReferenceEquals(o,null)) return false;
return (Id.Equals(o.Id));
}
public virtual string toString()
{
return this.GetType().FullName
+ "[id=" + Id + "]";
}
protected virtual Guid NewId()
{
return GuidComb.NewGuid();
}
public static bool operator == (ObjetoConId x,ObjetoConId y)
{
if(Object.ReferenceEquals(x,y))
return true;
if(Object.ReferenceEquals(x,null))
return false;
return x.Equals(y);
}
public static bool operator != (ObjetoConId x,ObjetoConId y)
{
return !(x==y);
}
/// <summary>
/// Metodo interno para permitir el testing
/// </summary>
/// <param name="id"></param>
internal void setId(Guid id)
{
Id=id;
}
}
和这个实体
public class Propiedad : ObjetoConId,IPropiedad
{
[Obsolete("Persistance Constructor only")]
public Propiedad ()
{
}
public Propiedad (IList<IDescripcionCalificada> descripciones)
{
Descripciones=new Dictionary<string,IDescripcionCalificada>(descripciones.Count);
foreach(IDescripcionCalificada d in descripciones)
Descripciones.Add(d.Nombre,d);
}
#region IPropiedad implementation
public virtual IDictionary<string, IDescripcionCalificada> Descripciones {get;private set;}
#endregion
}
以及这个映射
public class MapeoPropiedad : ClassMap<Propiedad>
{
public MapeoPropiedad()
{
Id(x => x.Id).Column("pro_id").GeneratedBy.Assigned();
HasMany<DescripcionCalificada>(x => x.Descripciones)
.Cascade.SaveUpdate()
.AsMap<string>(index => index.Nombre)
;
}
}
对它的测试是
[TestFixture]
public class TestPropiedadPersistencia
{
[TestFixtureSetUp]
public void TestFixtureSetUp()
{
string connectionString="Server=127.0.0.1;Database=Ana;User ID=dev-test;Password=dev-test;";
fcfg=Fluently.Configure()
.Database(PostgreSQLConfiguration.PostgreSQL82.ConnectionString(connectionString))
.Mappings(m => m.FluentMappings.AddFromAssemblyOf<MapeoPropiedad>());
fcfg.ExposeConfiguration(cfg => new SchemaExport(cfg).Create(false, true));
sessions=fcfg.BuildSessionFactory();
}
ISessionFactory sessions;
FluentConfiguration fcfg;
[TestFixtureTearDown]
public void TestFixtureTearDown()
{
fcfg.ExposeConfiguration(cfg => new SchemaExport(cfg).Drop(false, true));
sessions.Close();
sessions = null;
fcfg = null;
}
[Test]
public void CanCorrectlyMapPropiedad()
{
DescripcionCalificada descri1=new DescripcionCalificada("descri",new Descripcion("Esta es la descri"));
DescripcionCalificada descri2=new DescripcionCalificada("descriLarga",new Descripcion("Esta es la descriLarga"));
Dictionary<string,IDescripcionCalificada> descris=new Dictionary<string, IDescripcionCalificada>(2);
descris.Add(descri1.Nombre,descri1);
descris.Add(descri2.Nombre,descri2);
new PersistenceSpecification<Propiedad>(sessions.OpenSession(),new CustomEqualityComparer() )
.CheckProperty(c => c.Descripciones,descris)
.VerifyTheMappings();
}
}
事情是测试失败,除非我将 Not.LazyLoad() 放入映射中 它给出了一个映射错误,
Ana.Nucleo.Lenguaje.Test.TestDescripcionCalificadaPersistencia (TestFixtureSetUp):
FluentNHibernate.Cfg.FluentConfigurationException : An invalid or incomplete configuration was used while creating a SessionFactory. Check PotentialReasons collection, and InnerException for more detail.
----> NHibernate.InvalidProxyTypeException : The following types may not be used as proxies:
Ana.Catalogacion.Implementacion.Propiedad: method setId should be 'public/protected virtual' or 'protected internal virtual'
没有延迟加载,它就会通过,如果我将 Id 属性放在 Propiedad 类中,而不是从 ObjetoConID 继承,它也会通过,无论有没有 Not.LazyLoad()。
任何人都可以确认这是一个 NH bug,或者任何帮助将不胜感激
编辑:
我发现了问题,我的错。我错过了 setId 内部函数没有受到虚拟保护,并且与 Id 属性的 setter 混淆,因此误解了执行
Fer
I'm quite new to nhibernate, I was doing all right until I face this problem, It looks like a NHibernate bug, but being a newbie with it, it can certainly be my fault
Having this base class to do all the Id and equality stuff
public abstract class ObjetoConId
{
public ObjetoConId()
{
Id=NewId();
}
public virtual Guid Id {get;private set;}
public override bool Equals(object o)
{
if (Object.ReferenceEquals(this,o))
return true;
if (o==null) return false;
ObjetoConId oId;
oId= o as ObjetoConId;
if (!Object.ReferenceEquals(oId,null))
return (Id.Equals(oId.Id));
return (base.Equals(o));
}
public override int GetHashCode()
{
byte[] bId;
bId=Id.ToByteArray();
return ((Int32)(bId[8]^bId[12])<<24) +
((Int32)(bId[9]^bId[13])<<16) +
((Int32)(bId[10]^bId[14])<<8) +
((Int32)(bId[11]^bId[15]));
}
public virtual bool Equals(ObjetoConId o)
{
if (Object.ReferenceEquals(this,o))
return true;
if (Object.ReferenceEquals(o,null)) return false;
return (Id.Equals(o.Id));
}
public virtual string toString()
{
return this.GetType().FullName
+ "[id=" + Id + "]";
}
protected virtual Guid NewId()
{
return GuidComb.NewGuid();
}
public static bool operator == (ObjetoConId x,ObjetoConId y)
{
if(Object.ReferenceEquals(x,y))
return true;
if(Object.ReferenceEquals(x,null))
return false;
return x.Equals(y);
}
public static bool operator != (ObjetoConId x,ObjetoConId y)
{
return !(x==y);
}
/// <summary>
/// Metodo interno para permitir el testing
/// </summary>
/// <param name="id"></param>
internal void setId(Guid id)
{
Id=id;
}
}
and this entity
public class Propiedad : ObjetoConId,IPropiedad
{
[Obsolete("Persistance Constructor only")]
public Propiedad ()
{
}
public Propiedad (IList<IDescripcionCalificada> descripciones)
{
Descripciones=new Dictionary<string,IDescripcionCalificada>(descripciones.Count);
foreach(IDescripcionCalificada d in descripciones)
Descripciones.Add(d.Nombre,d);
}
#region IPropiedad implementation
public virtual IDictionary<string, IDescripcionCalificada> Descripciones {get;private set;}
#endregion
}
and this mapping
public class MapeoPropiedad : ClassMap<Propiedad>
{
public MapeoPropiedad()
{
Id(x => x.Id).Column("pro_id").GeneratedBy.Assigned();
HasMany<DescripcionCalificada>(x => x.Descripciones)
.Cascade.SaveUpdate()
.AsMap<string>(index => index.Nombre)
;
}
}
The test for it is
[TestFixture]
public class TestPropiedadPersistencia
{
[TestFixtureSetUp]
public void TestFixtureSetUp()
{
string connectionString="Server=127.0.0.1;Database=Ana;User ID=dev-test;Password=dev-test;";
fcfg=Fluently.Configure()
.Database(PostgreSQLConfiguration.PostgreSQL82.ConnectionString(connectionString))
.Mappings(m => m.FluentMappings.AddFromAssemblyOf<MapeoPropiedad>());
fcfg.ExposeConfiguration(cfg => new SchemaExport(cfg).Create(false, true));
sessions=fcfg.BuildSessionFactory();
}
ISessionFactory sessions;
FluentConfiguration fcfg;
[TestFixtureTearDown]
public void TestFixtureTearDown()
{
fcfg.ExposeConfiguration(cfg => new SchemaExport(cfg).Drop(false, true));
sessions.Close();
sessions = null;
fcfg = null;
}
[Test]
public void CanCorrectlyMapPropiedad()
{
DescripcionCalificada descri1=new DescripcionCalificada("descri",new Descripcion("Esta es la descri"));
DescripcionCalificada descri2=new DescripcionCalificada("descriLarga",new Descripcion("Esta es la descriLarga"));
Dictionary<string,IDescripcionCalificada> descris=new Dictionary<string, IDescripcionCalificada>(2);
descris.Add(descri1.Nombre,descri1);
descris.Add(descri2.Nombre,descri2);
new PersistenceSpecification<Propiedad>(sessions.OpenSession(),new CustomEqualityComparer() )
.CheckProperty(c => c.Descripciones,descris)
.VerifyTheMappings();
}
}
The thing is that the test fails unless I put Not.LazyLoad() in the mapping
It gives a mapping error
Ana.Nucleo.Lenguaje.Test.TestDescripcionCalificadaPersistencia (TestFixtureSetUp):
FluentNHibernate.Cfg.FluentConfigurationException : An invalid or incomplete configuration was used while creating a SessionFactory. Check PotentialReasons collection, and InnerException for more detail.
----> NHibernate.InvalidProxyTypeException : The following types may not be used as proxies:
Ana.Catalogacion.Implementacion.Propiedad: method setId should be 'public/protected virtual' or 'protected internal virtual'
without lazy loading it pass, and if I put the Id property in the Propiedad class and not inherit from ObjetoConID it also pass, with and without the Not.LazyLoad().
Anyone can confirm this is a NH bug, or any help will be appreciated
EDIT:
I've found the problem, my fault. I missed the setId internal function not being virtual protected and confused with the setter of the Id property, and thus missunderstood the execption
Fer
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我发现问题了,是我的错。我错过了 setId 内部函数没有受到虚拟保护,并且与 Id 属性的 setter 混淆,因此误解了执行
I've found the problem, my fault. I missed the setId internal function not being virtual protected and confused with the setter of the Id property, and thus missunderstood the execption