/// <summary>
/// used to restore the aggregation
/// </summary>
/// <param name="state"></param>
/// <returns></returns>
/// <exception cref="ArgumentException"></exception>
public static Activity FromState(ActivityState state)
{
return(Activity.From(Description.From(state.Description), EntityId.From(state.ActivityId),
EntityId.From(state.ProjectId), ActivityStatus.From(state.Status)));
}
/// <summary>
/// creating new aggregation as design by business based on business concepts
/// </summary>
/// <param name="descr"></param>
/// <param name="project"></param>
/// <param name="entityId"></param>
/// <returns></returns>
public static ActivityAggregationRoot CreateFrom(Description descr, EntityId entityId, Project project)
{
return(new ActivityAggregationRoot(descr, entityId, project, ActivityStatus.From(1)));
}