Quintiq file version 2.0 
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#parent: #root 
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Method SetPeriodWithNrOfOccurrences ( 
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  Date startDate_i, 
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  Number nrOfOccurrences_i 
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) 
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{ 
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  Description: 'Set a recurrence period that starts at a specific date recurs for a specific number of times.' 
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  TextBody: 
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  [* 
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    // Check if a new RecurrencePeriod must be created. 
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    period       := guard( this.RecurrencePeriod().astype( LibCal_RecurrencePeriodNrOfOccurrences ), null( LibCal_RecurrencePeriodNrOfOccurrences ) ); 
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    changeOfType := isnull( period ); 
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    isChanged := changeOfType  // There was no period yet, or it was not a PeriodNrOfOccurrences 
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              or period.StartDate()       <> startDate_i 
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              or period.NrOfOccurrences() <> nrOfOccurrences_i; 
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    if( isChanged ) 
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    { 
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      if( nrOfOccurrences_i >= 0 ) 
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      { 
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        prevPeriod    := this.GetRecurrencePeriod(); // Can be the one from the LeadingParticipation. 
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        prevStartDate := guard( prevPeriod.StartDate(), Date::MinDate() ); 
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        prevEndDate   := guard( prevPeriod.EndDate(),   Date::MaxDate() ); 
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        if( changeOfType ) 
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        { 
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          // Create a new RecurrencePeriod. 
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          period := LibCal_RecurrencePeriodNrOfOccurrences::Create( this, startDate_i, nrOfOccurrences_i ); 
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        } 
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        else 
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        { 
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          period.StartDate( startDate_i ); 
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          period.NrOfOccurrences( nrOfOccurrences_i ); 
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        } 
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        // Directly calculate the new EndDate. 
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        period.CalcEndDate(); 
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        // Register the previous startdate and enddate. 
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        // They are used to determine which occurrences must be created / deleted for the changed period. 
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        period.PreviousStartDate( prevStartDate ); 
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        period.PreviousEndDate(   prevEndDate   ); 
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        this.HasChangedRecurrencePeriod( true ); 
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      } 
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      else 
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      { 
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        LibCal_Util::Error( this.Calendar().CalendarID() + "." + this.Event().Subject() + " : " +  
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                            Translations::Period_InvalidNrOfOccurrences() + "(is " + [String]nrOfOccurrences_i + ")" ); 
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      }     
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    } 
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  *] 
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  InterfaceProperties { Accessibility: 'Module' } 
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} 
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