protected final boolean isDurationValid ( ) { if ( isValidEndTypeForPattern ( ) ) { switch ( getEndType ( ) ) { case DATE : return ( getStart ( ) . getTime ( ) < ( getSeriesEndDate ( ) . getTime ( ) + DAY_IN_MILLIS ) ) ; case TIMES : return getOccurrences ( ) > 0 ; case SINGLE : return true ; default : return false ; } } else { return false ; } }
Checks if the duration option is valid .