/// <summary>
/// Singleton instance.
/// </summary>
/// <returns>
/// The <see cref="BDDFactory"/>.
/// </returns>
public static BDDFactory GetInstance()
{
return(instance ?? (instance = new BDDFactoryRecursive()));
}
/// <summary>
/// The recursive BDD construction singleton instance.
/// </summary>
/// <returns>
/// The <see cref="BDDFactory"/>.
/// </returns>
public static BDDFactory GetRecursiveInstance()
{
return(BDDFactoryRecursive.GetInstance());
}