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<?php |
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namespace SG; |
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use SG\Cache\ElementsCacheBuilder; |
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use SG\Cache\GlossaryCache; |
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use SMW\StoreFactory; |
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use Lingo\Backend; |
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use Lingo\MessageLog; |
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/** |
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* @ingroup SG |
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* @ingroup SemanticGlossary |
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* |
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* @license GNU GPL v2+ |
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* @since 1.1 |
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* |
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* @author mwjames |
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*/ |
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class LingoBackendAdapter extends Backend { |
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/* @var ElementsCacheBuilder */ |
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protected $elementsCacheBuilder = null; |
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protected $elements = array(); |
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/** |
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* @since 1.1 |
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* |
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* @param MessageLog|null &$messages |
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* @param ElementsCacheBuilder|null $elementsCacheBuilder |
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*/ |
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public function __construct( MessageLog &$messages = null, ElementsCacheBuilder $elementsCacheBuilder = null ) { |
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parent::__construct( $messages ); |
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$this->elementsCacheBuilder = $elementsCacheBuilder; |
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if ( $this->elementsCacheBuilder === null ) { |
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$this->elementsCacheBuilder = new ElementsCacheBuilder( |
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StoreFactory::getStore(), |
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new GlossaryCache() |
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); |
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} |
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} |
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/** |
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* This function returns the next element. The element is an array of four |
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* strings: Term, Definition, Link, Source, Style. If there is no next element |
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* the function returns null. |
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* |
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* @since 1.1 |
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* |
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* @return array|null the next element or null |
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*/ |
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public function next() { |
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if ( $this->elements === array() ) { |
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$this->elements = $this->elementsCacheBuilder->getElements(); |
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} |
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return array_pop( $this->elements ); |
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} |
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/** |
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* This backend is cache-enabled so this function returns true. |
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* |
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* Actual caching is done by the parser, the backend just calls |
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* Parser::purgeCache when necessary. |
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* |
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* @since 1.1 |
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* |
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* @return boolean |
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*/ |
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1 |
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public function useCache() { |
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return true; |
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} |
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} |
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SemanticMediaWiki /
SemanticGlossary
