public EntityRowComparer(List <Tuple <PropertyDescriptor, int> > keys)
{
List <Tuple <PropertyDescriptor, int, IDbValueReader> > keyList = new List <Tuple <PropertyDescriptor, int, IDbValueReader> >(keys.Count);
for (int i = 0; i < keys.Count; i++)
{
var tuple = keys[i];
IDbValueReader dbValueReader = DataReaderConstant.GetDbValueReader(tuple.Item1.PropertyType);
keyList.Add(new Tuple <PropertyDescriptor, int, IDbValueReader>(tuple.Item1, tuple.Item2, dbValueReader));
}
this._keys = keyList;
this._keyValues = new object[keys.Count];
}
static Action <TEntity, IDataReader> GetMapper <TEntity>(PrimitivePropertyDescriptor propertyDescriptor, int ordinal)
{
var dbValueReader = DataReaderConstant.GetDbValueReader(propertyDescriptor.PropertyType);
Action <TEntity, IDataReader> mapper = (TEntity entity, IDataReader reader) =>
{
object value = dbValueReader.GetValue(reader, ordinal);
if (value == null || value == DBNull.Value)
{
throw new ChloeException($"Unable to get the {propertyDescriptor.Property.Name} value from data reader.");
}
propertyDescriptor.SetValue(entity, value);
};
return(mapper);
}
public PrimitiveObjectActivator(Type primitiveType, int readerOrdinal)
{
this._primitiveType = primitiveType;
this._readerOrdinal = readerOrdinal;
this._dbValueReader = DataReaderConstant.GetDbValueReader(primitiveType);
}