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<?php |
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namespace Wikibase\DataModel\Statement; |
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use Comparable; |
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use InvalidArgumentException; |
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use Wikibase\DataModel\Entity\EntityId; |
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/** |
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* Immutable value object for a statement id. A statement id consists of the entity id serialization |
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* of the entity it belongs to (e.g. "Q1") and a randomly generated global unique identifier (GUID), |
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* separated by a dollar sign. |
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* |
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* @since 3.0 |
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* |
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* @license GPL-2.0-or-later |
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* @author Addshore |
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*/ |
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class StatementGuid implements Comparable { |
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/** |
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* The separator for the prefix and suffix of the GUID. |
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*/ |
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public const SEPARATOR = '$'; |
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/** |
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* @var EntityId |
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*/ |
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private $entityId; |
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/** |
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* @var string |
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*/ |
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private $guidPart; |
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/** |
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* @var string |
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*/ |
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private $serialization; |
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/** |
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* @param EntityId $entityId |
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* @param string $guid |
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* |
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* @throws InvalidArgumentException |
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*/ |
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public function __construct( EntityId $entityId, $guid ) { |
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if ( !is_string( $guid ) ) { |
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throw new InvalidArgumentException( '$guid must be a string' ); |
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} |
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$this->serialization = $entityId->getSerialization() . self::SEPARATOR . $guid; |
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$this->entityId = $entityId; |
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$this->guidPart = $guid; |
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} |
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/** |
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* @return EntityId |
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*/ |
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public function getEntityId() { |
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return $this->entityId; |
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} |
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/** |
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* @since 9.4 |
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* |
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* @return string |
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*/ |
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public function getGuidPart() { |
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return $this->guidPart; |
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} |
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/** |
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* @return string |
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* @deprecated The value returned by this method might differ in case from the original, unparsed statement GUID |
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* (the entity ID part might have been lowercase originally, but is always normalized in the return value here), |
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* which means that the value should not be compared to other statement GUID serializations, |
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* e.g. to look up a statement in a StatementList. |
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*/ |
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public function getSerialization() { |
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return $this->serialization; |
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} |
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/** |
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* @param mixed $target |
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* |
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* @return bool |
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*/ |
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public function equals( $target ) { |
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if ( $this === $target ) { |
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return true; |
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} |
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return $target instanceof self |
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&& $target->serialization === $this->serialization; |
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} |
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public function __toString() { |
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return $this->serialization; |
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} |
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} |
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wmde /
WikibaseDataModel
