void RegisterBaseType(string name, uint oid, Type handlerType, TypeMappingAttribute mapping)
{
// Instantiate the type handler. If it has a constructor that accepts an NpgsqlConnector, use that to allow
// the handler to make connector-specific adjustments. Otherwise (the normal case), use the default constructor.
var handler = (TypeHandler)(
handlerType.GetConstructor(new[] { typeof(TypeHandlerRegistry) }) != null
? Activator.CreateInstance(handlerType, this)
: Activator.CreateInstance(handlerType)
);
handler.OID = oid;
OIDIndex[oid] = handler;
handler.PgName = name;
if (mapping.NpgsqlDbType.HasValue)
{
var npgsqlDbType = mapping.NpgsqlDbType.Value;
if (_byNpgsqlDbType.ContainsKey(npgsqlDbType))
{
throw new Exception(String.Format("Two type handlers registered on same NpgsqlDbType {0}: {1} and {2}",
npgsqlDbType, _byNpgsqlDbType[npgsqlDbType].GetType().Name, handlerType.Name));
}
_byNpgsqlDbType[npgsqlDbType] = handler;
handler.NpgsqlDbType = npgsqlDbType;
}
foreach (var dbType in mapping.DbTypes)
{
if (_byDbType.ContainsKey(dbType))
{
throw new Exception(String.Format("Two type handlers registered on same DbType {0}: {1} and {2}",
dbType, _byDbType[dbType].GetType().Name, handlerType.Name));
}
_byDbType[dbType] = handler;
}
foreach (var type in mapping.Types)
{
if (_byType.ContainsKey(type))
{
throw new Exception(String.Format("Two type handlers registered on same .NET type {0}: {1} and {2}",
type, _byType[type].GetType().Name, handlerType.Name));
}
_byType[type] = handler;
}
}
void RegisterRangeType(Type handlerType, TypeMappingAttribute mapping, BackendTypeInfo backendInfo)
{
Contract.Requires(backendInfo.RangeSubtypeOID != 0);
TypeHandler elementHandler;
if (!_oidIndex.TryGetValue(backendInfo.RangeSubtypeOID, out elementHandler))
{
Log.ErrorFormat("Range type '{0}' refers to unknown subtype with OID {1}, skipping", backendInfo.Name, backendInfo.RangeSubtypeOID);
return;
}
var rangeHandlerType = typeof(RangeHandler <>).MakeGenericType(elementHandler.GetFieldType());
var handler = (TypeHandler)Activator.CreateInstance(rangeHandlerType, elementHandler, backendInfo.Name);
handler.PgName = "range";
handler.NpgsqlDbType = NpgsqlDbType.Range | elementHandler.NpgsqlDbType;
handler.OID = backendInfo.OID;
_oidIndex[backendInfo.OID] = handler;
_byNpgsqlDbType.Add(handler.NpgsqlDbType, handler);
RegisterArrayType(backendInfo.ArrayOID, handler, backendInfo.ArrayTextDelimiter);
}