public IEntityPersister FindEntityPersisterUsingImports(string className)
{
// NH : short cut
if (string.IsNullOrEmpty(className))
{
return(null);
}
if (!char.IsLetter(className[0]) && !className[0].Equals('_'))
{
return(null);
}
// NH : this method prevent unrecognized class when entityName != class.FullName
// this is a patch for the TODO below
var possibleResult = sfi.TryGetEntityPersister(GetEntityName(className));
if (possibleResult != null)
{
return(possibleResult);
}
string importedClassName = sfi.GetImportedClassName(className);
if (importedClassName == null)
{
return(null);
}
// NH: This method don't work if entityName != class.FullName
return(sfi.TryGetEntityPersister(GetEntityName(importedClassName)));
}
private static bool TryGetEntityPersister(
string currentEntityName,
System.Type convertedType,
ISessionFactoryImplementor sessionFactory,
out IEntityPersister persister)
{
var currentEntityPersister = sessionFactory.TryGetEntityPersister(currentEntityName);
if (currentEntityPersister == null)
{
// When dealing with a polymorphic query it is not important which entity name we pick
// as they all need to have the same mapped types for members of the type that is queried.
// If one of the entites has a different type mapped (e.g. enum mapped as string instead of numeric),
// the query will fail to execute as currently the ParameterMetadata is bound to IQueryPlan and not to IQueryTranslator
// (e.g. s.Query<IEntity>().Where(a => a.MyEnum == MyEnum.Option)).
currentEntityName = sessionFactory.GetImplementors(currentEntityName).FirstOrDefault();
if (currentEntityName == null)
{
persister = null;
return(false);
}
currentEntityPersister = sessionFactory.GetEntityPersister(currentEntityName);
}
return(TryGetEntityPersister(currentEntityPersister, convertedType, sessionFactory, out persister));
}
protected virtual IEntityPersister GetEntityPersister(ISessionFactoryImplementor factory, string entityName)
{
// Check for an exact match.
IEntityPersister persister = factory.TryGetEntityPersister(entityName);
if (persister != null)
{
return(persister);
}
// Couldn't find persister through exact name, try finding a single implementing class.
string[] implementors = factory.GetImplementors(entityName);
if (implementors.Length > 1)
{
var messageBuilder = new StringBuilder(512);
messageBuilder.AppendLine(string.Format("Ambiguous persister for {0} implemented by more than one hierarchy: ",
entityName));
Array.ForEach(implementors, s => messageBuilder.AppendLine(s));
throw new HibernateException(messageBuilder.ToString());
}
if (implementors.Length == 0)
{
return(null);
}
return(factory.GetEntityPersister(implementors[0]));
}
private IEntityPersister ResolvePersister(string entityName)
{
// Check for an exact match.
var persister = _sessionFactory.TryGetEntityPersister(entityName);
if (persister != null)
{
return(persister);
}
// Couldn't find persister through exact name, try finding a single implementing class.
string[] implementors = _sessionFactory.GetImplementors(entityName);
if (implementors.Length > 1)
{
throw new ODataException(String.Format(ErrorMessages.ODataRequest_AmbiguousEntityName, entityName));
}
else if (implementors.Length == 0)
{
return(null);
}
else
{
return(_sessionFactory.GetEntityPersister(implementors[0]));
}
}
/// <summary>
/// Guesses the <see cref="IType"/> from the <see cref="System.Type"/>.
/// </summary>
/// <param name="clazz">The <see cref="System.Type"/> to guess the <see cref="IType"/> of.</param>
/// <param name="sessionFactory">The session factory to search for entity persister.</param>
/// <returns>An <see cref="IType"/> for the <see cref="System.Type"/>.</returns>
/// <exception cref="ArgumentNullException">
/// Thrown when the <c>clazz</c> is null because the <see cref="IType"/>
/// can't be guess from a null type.
/// </exception>
public static IType TryGuessType(System.Type clazz, ISessionFactoryImplementor sessionFactory)
{
if (clazz == null)
{
return(null);
}
var type = TypeFactory.HeuristicType(clazz);
if (type == null || type is SerializableType)
{
if (sessionFactory.TryGetEntityPersister(clazz.FullName) != null)
{
return(NHibernateUtil.Entity(clazz));
}
}
return(type);
}
protected virtual IEntityPersister GetEntityPersister(ISessionFactoryImplementor factory, string entityName)
{
// Check for an exact match.
IEntityPersister persister = factory.TryGetEntityPersister(entityName);
if (persister != null)
{
return persister;
}
// Couldn't find persister through exact name, try finding a single implementing class.
string[] implementors = factory.GetImplementors(entityName);
if (implementors.Length > 1)
{
var messageBuilder = new StringBuilder(512);
messageBuilder.AppendLine(string.Format("Ambiguous persister for {0} implemented by more than one hierarchy: ",
entityName));
Array.ForEach(implementors, s=> messageBuilder.AppendLine(s));
throw new HibernateException(messageBuilder.ToString());
}
if (implementors.Length == 0)
{
return null;
}
return factory.GetEntityPersister(implementors[0]);
}
