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;
}
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));
}
public virtual ClassMetadata ClassMetadataForReflectClass(IReflectClass reflectClass
)
{
return(_server.ClassMetadataForReflectClass(reflectClass));
}