/// <summary>
/// id class constructor
/// </summary>
public id()
{
generatorField = new generator();
typeField = new type();
columnField = new List<Column>();
metaField = new List<meta>();
}
/// <summary>
/// collectionid class constructor
/// </summary>
public collectionid()
{
generatorField = new generator();
columnField = new List<Column>();
metaField = new List<meta>();
}