/// <summary>
/// Add the given NpgsqlNativeTypeInfo to this mapping.
/// </summary>
public void AddType(NpgsqlNativeTypeInfo T)
{
if (NameIndex.ContainsKey(T.Name))
{
throw new Exception("Type already mapped");
}
NameIndex[T.Name] = T;
NpgsqlDbTypeIndex[T.NpgsqlDbType] = T;
DbTypeIndex[T.DbType] = T;
if (!T.IsArray)
{
NpgsqlNativeTypeInfo arrayType = NpgsqlNativeTypeInfo.ArrayOf(T);
NameIndex[arrayType.Name] = arrayType;
NameIndex[arrayType.CastName] = arrayType;
NpgsqlDbTypeIndex[arrayType.NpgsqlDbType] = arrayType;
}
}
/// <summary>
/// Find a NpgsqlNativeTypeInfo in the default types map that can handle objects
/// of the given System.Type.
/// </summary>
public static bool TryGetNativeTypeInfo(Type type, out NpgsqlNativeTypeInfo typeInfo)
{
if (NativeTypeMapping.TryGetValue(type, out typeInfo))
{
return(true);
}
// At this point there is no direct mapping, so we see if we have an array or IEnumerable<T>.
// Note that we checked for a direct mapping first, so if there is a direct mapping of a class
// which implements IEnumerable<T> we will use that (currently this is only string, which
// implements IEnumerable<char>.
Type elementType = null;
NpgsqlNativeTypeInfo elementTypeInfo = null;
if (TestTypedEnumerator(type, out elementType) && TryGetNativeTypeInfo(elementType, out elementTypeInfo))
{
typeInfo = NpgsqlNativeTypeInfo.ArrayOf(elementTypeInfo);
return(true);
}
return(false);
}