/// <summary>
/// Resolves next state.
/// </summary>
/// <returns>Concrete instance of <see cref="MailingState"/>.</returns>
/// <exception cref="Exception">Can't resolve more states</exception>
public virtual MailingState Resolve()
{
if (!CanResolve())
{
throw new Exception("Can't resolve more states");
}
var stateType = _lastState == null ? _initialStates[_bulkEmail.GetTypedColumnValue <Guid>("StatusId")]
: _currentStateSequence[_lastState.GetType()];
_lastState = (MailingState)Activator.CreateInstance(stateType);
return(_lastState);
}
/// <summary>
/// Changes the state of context.
/// </summary>
/// <param name="state">The state.</param>
public void ChangeState(MailingState state)
{
_state = state;
_state.SetContext(this);
_state.Initialize();
}
