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<?php |
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namespace POData\Common; |
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/** |
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* Class Version Type to represents the version number of data service and edmx. |
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*/ |
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class Version |
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{ |
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/** |
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* The major component of the version. |
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* |
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* @var int |
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*/ |
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private $major; |
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/** |
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* The minor component of the version. |
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* |
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* @var int |
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*/ |
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private $minor; |
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/** |
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* Constructs a new instance of Version class. |
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* |
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* @param int $major The major component of the version |
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* @param int $minor The minor component of the version |
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*/ |
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public function __construct($major, $minor) |
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{ |
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$this->major = $major; |
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$this->minor = $minor; |
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} |
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/** |
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* Gets the major component of the version. |
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* |
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* @return int |
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*/ |
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public function getMajor() |
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{ |
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return $this->major; |
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} |
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/** |
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* Gets the minor component of the version. |
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* |
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* @return int |
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*/ |
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public function getMinor() |
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{ |
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return $this->minor; |
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} |
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/** |
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* If necessary raises version to the version given. |
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* |
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* @param int $major The major component of the new version |
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* @param int $minor The minor component of the new version |
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* |
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* @return bool true if the version was raised, false otherwise |
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*/ |
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public function raiseVersion($major, $minor) |
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{ |
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if ($major > $this->major) { |
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$this->major = $major; |
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$this->minor = $minor; |
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return true; |
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} elseif ($major == $this->major && $minor > $this->minor) { |
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$this->minor = $minor; |
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return true; |
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} |
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return false; |
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} |
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/** |
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* Compare this version with a target version. |
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* |
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* @param Version $targetVersion The target version to compare with |
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* |
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* @return int Return 1 if this version is greater than target version |
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* -1 if this version is less than the target version |
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* 0 if both are equal |
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*/ |
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public function compare(Version $targetVersion) |
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{ |
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if ($this->major > $targetVersion->major) { |
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return 1; |
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} |
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if ($this->major == $targetVersion->major) { |
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if ($this->minor == $targetVersion->minor) { |
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return 0; |
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} |
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if ($this->minor > $targetVersion->minor) { |
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return 1; |
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} |
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} |
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return -1; |
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} |
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/** |
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* Gets the value of the current Version object as string. |
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* |
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* @return string |
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*/ |
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public function toString() |
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{ |
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return $this->major . '.' . $this->minor; |
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} |
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//Is there a better way to do static const of complex type? |
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/** @var Version[] */ |
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private static $fixedVersion = null; |
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private static function fillVersions() |
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{ |
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if (null == self::$fixedVersion) { |
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self::$fixedVersion = [1 => new self(1, 0), 2 => new self(2, 0), 3 => new self(3, 0)]; |
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} |
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} |
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public static function v1() |
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{ |
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self::fillVersions(); |
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return self::$fixedVersion[1]; |
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} |
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public static function v2() |
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{ |
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self::fillVersions(); |
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return self::$fixedVersion[2]; |
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} |
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public static function v3() |
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{ |
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self::fillVersions(); |
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return self::$fixedVersion[3]; |
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} |
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public static function reset() |
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{ |
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self::$fixedVersion = null; |
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} |
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} |
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Algo-Web /
POData
