1 | <?php |
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17 | final class ChangeFrequency |
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18 | { |
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19 | /** |
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20 | * @var string |
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21 | */ |
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22 | private $value; |
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23 | |||
24 | /** |
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25 | * @param string $changeFrequency |
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26 | */ |
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27 | private function __construct($changeFrequency) |
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31 | |||
32 | /** |
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33 | * @return string |
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34 | */ |
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35 | public function __toString() |
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39 | |||
40 | /** |
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41 | * @return ChangeFrequency |
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42 | */ |
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43 | public static function always() |
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47 | |||
48 | /** |
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49 | * @return ChangeFrequency |
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50 | */ |
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51 | public static function hourly() |
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55 | |||
56 | /** |
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57 | * @return ChangeFrequency |
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58 | */ |
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59 | public static function daily() |
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63 | |||
64 | /** |
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65 | * @return ChangeFrequency |
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66 | */ |
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67 | public static function weekly() |
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71 | |||
72 | /** |
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73 | * @return ChangeFrequency |
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74 | */ |
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75 | public static function monthly() |
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79 | |||
80 | /** |
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81 | * @return ChangeFrequency |
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82 | */ |
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83 | public static function yearly() |
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87 | |||
88 | /** |
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89 | * @return ChangeFrequency |
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90 | */ |
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91 | public static function never() |
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95 | } |
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96 |