internal QConClass(Transaction trans, QCon parent, QField field, IReflectClass claxx
) : base(trans, parent, field, null)
{
// C/S
if (claxx != null)
{
ObjectContainerBase container = trans.Container();
_classMetadata = container.ClassMetadataForReflectClass(claxx);
if (_classMetadata == null)
{
// could be an aliased class, try to resolve.
string className = claxx.GetName();
string aliasRunTimeName = container.Config().ResolveAliasStoredName(className);
if (!className.Equals(aliasRunTimeName))
{
_classMetadata = container.ClassMetadataForName(aliasRunTimeName);
}
}
if (claxx.Equals(container._handlers.IclassObject))
{
_classMetadata = (ClassMetadata)_classMetadata.TypeHandler();
}
}
_claxx = claxx;
}
private static ClassMetadata DetectElementTypeErasingNullables(ObjectContainerBase container, IEnumerable collection)
{
Type elementType = ElementTypeOf(collection);
if (IsNullableInstance(elementType))
{
return(container.ClassMetadataForReflectClass(container.Handlers.IclassObject));
}
return(container.ProduceClassMetadata(container.Reflector().ForClass(elementType)));
}
internal virtual IPreparedComparison PrepareComparison(ObjectContainerBase container
, object constraint)
{
IContext context = container.Transaction.Context();
if (_fieldMetadata != null)
{
return(_fieldMetadata.PrepareComparison(context, constraint));
}
if (_classMetadata != null)
{
return(_classMetadata.PrepareComparison(context, constraint));
}
IReflector reflector = container.Reflector();
Db4objects.Db4o.Internal.ClassMetadata classMetadata = null;
if (_bytes != null)
{
classMetadata = container.ProduceClassMetadata(reflector.ForObject(constraint));
}
else
{
if (_member != null)
{
classMetadata = container.ClassMetadataForReflectClass(reflector.ForObject(_member
));
}
}
if (classMetadata != null)
{
if (_member != null && _member.GetType().IsArray)
{
ITypeHandler4 arrayElementTypehandler = classMetadata.TypeHandler();
if (reflector.Array().IsNDimensional(MemberClass()))
{
MultidimensionalArrayHandler mah = new MultidimensionalArrayHandler(arrayElementTypehandler
, false);
return(mah.PrepareComparison(context, _member));
}
ArrayHandler ya = new ArrayHandler(arrayElementTypehandler, false);
return(ya.PrepareComparison(context, _member));
}
return(classMetadata.PrepareComparison(context, constraint));
}
return(null);
}
internal virtual IPreparedComparison PrepareComparison(ObjectContainerBase container
, object constraint)
{
var context = container.Transaction.Context();
if (_fieldMetadata != null)
{
return _fieldMetadata.PrepareComparison(context, constraint);
}
if (_classMetadata != null)
{
return _classMetadata.PrepareComparison(context, constraint);
}
IReflector reflector = container.Reflector();
ClassMetadata classMetadata = null;
if (_bytes != null)
{
classMetadata = container.ProduceClassMetadata(reflector.ForObject(constraint));
}
else
{
if (_member != null)
{
classMetadata = container.ClassMetadataForReflectClass(reflector.ForObject(_member
));
}
}
if (classMetadata != null)
{
if (_member != null && _member.GetType().IsArray)
{
var arrayElementTypehandler = classMetadata.TypeHandler();
if (reflector.Array().IsNDimensional(MemberClass()))
{
var mah = new MultidimensionalArrayHandler(arrayElementTypehandler
, false);
return mah.PrepareComparison(context, _member);
}
var ya = new ArrayHandler(arrayElementTypehandler, false);
return ya.PrepareComparison(context, _member);
}
return classMetadata.PrepareComparison(context, constraint);
}
return null;
}
private bool HasIdentity(IReflectClass clazz)
{
ClassMetadata clazzMeta = _container.ClassMetadataForReflectClass(clazz);
return(clazzMeta == null || clazzMeta.HasIdentity());
}
