fabarea / vidi

Classes/Persistence/Query.php

Indentation +637 added lines, -637 removed lines

@@ -24,642 +24,642 @@
 class Query implements QueryInterface
 {
 
-    /**
-     * An inner join.
-     */
-    const JCR_JOIN_TYPE_INNER = '{http://www.jcp.org/jcr/1.0}joinTypeInner';
-
-    /**
-     * A left-outer join.
-     */
-    const JCR_JOIN_TYPE_LEFT_OUTER = '{http://www.jcp.org/jcr/1.0}joinTypeLeftOuter';
-
-    /**
-     * A right-outer join.
-     */
-    const JCR_JOIN_TYPE_RIGHT_OUTER = '{http://www.jcp.org/jcr/1.0}joinTypeRightOuter';
-
-    /**
-     * Charset of strings in QOM
-     */
-    const CHARSET = 'utf-8';
-
-    /**
-     * @var string
-     */
-    protected $sourceFieldName;
-
-    /**
-     * @var string
-     */
-    protected $type;
-
-    /**
-     * @var \TYPO3\CMS\Extbase\Persistence\PersistenceManagerInterface
-     */
-    protected $persistenceManager;
-
-    /**
-     * @var \TYPO3\CMS\Extbase\Persistence\Generic\Qom\QueryObjectModelFactory
-     */
-    protected $qomFactory;
-
-    /**
-     * @var \TYPO3\CMS\Extbase\Persistence\Generic\Qom\SourceInterface
-     */
-    protected $source;
-
-    /**
-     * @var ConstraintInterface
-     */
-    protected $constraint;
-
-    /**
-     * @var \TYPO3\CMS\Extbase\Persistence\Generic\Qom\Statement
-     */
-    protected $statement;
-
-    /**
-     * @var array
-     */
-    protected $orderings = [];
-
-    /**
-     * @var int
-     */
-    protected $limit;
-
-    /**
-     * @var int
-     */
-    protected $offset;
-
-    /**
-     * Apply DISTINCT upon property.
-     *
-     * @var string
-     */
-    protected $distinct;
-
-    /**
-     * The query settings.
-     *
-     * @var \Fab\Vidi\Persistence\QuerySettings
-     * @inject
-     */
-    protected $querySettings;
-
-    /**
-     * Constructs a query object working on the given class name
-     *
-     * @param string $type
-     */
-    public function __construct($type)
-    {
-        $this->type = $type;
-    }
-
-    /**
-     * Injects the persistence manager, used to fetch the CR session
-     *
-     * @param \TYPO3\CMS\Extbase\Persistence\PersistenceManagerInterface $persistenceManager
-     * @return void
-     */
-    public function injectPersistenceManager(\TYPO3\CMS\Extbase\Persistence\PersistenceManagerInterface $persistenceManager)
-    {
-        $this->persistenceManager = $persistenceManager;
-    }
-
-    /**
-     * Injects the Query Object Model Factory
-     *
-     * @param \TYPO3\CMS\Extbase\Persistence\Generic\Qom\QueryObjectModelFactory $qomFactory
-     * @return void
-     */
-    public function injectQomFactory(\TYPO3\CMS\Extbase\Persistence\Generic\Qom\QueryObjectModelFactory $qomFactory)
-    {
-        $this->qomFactory = $qomFactory;
-    }
-
-    /**
-     * Sets the Query Settings. These Query settings must match the settings expected by
-     * the specific Storage Backend.
-     *
-     * @param \TYPO3\CMS\Extbase\Persistence\Generic\QuerySettingsInterface $querySettings The Query Settings
-     * @return void
-     * @api This method is not part of FLOW3 API
-     */
-    public function setQuerySettings(\TYPO3\CMS\Extbase\Persistence\Generic\QuerySettingsInterface $querySettings)
-    {
-        $this->querySettings = $querySettings;
-    }
-
-    /**
-     * Returns the Query Settings.
-     *
-     * @throws \Exception
-     * @return \Fab\Vidi\Persistence\QuerySettings $querySettings The Query Settings
-     * @api This method is not part of FLOW3 API
-     */
-    public function getQuerySettings()
-    {
-        if (!$this->querySettings instanceof \TYPO3\CMS\Extbase\Persistence\Generic\QuerySettingsInterface) {
-            throw new \TYPO3\CMS\Extbase\Persistence\Generic\Exception('Tried to get the query settings without setting them before.', 1248689115);
-        }
-
-        // Apply possible settings to the query.
-        if ($this->isBackendMode()) {
-            /** @var \TYPO3\CMS\Extbase\Configuration\BackendConfigurationManager $backendConfigurationManager */
-            $backendConfigurationManager = $this->getObjectManager()->get('TYPO3\CMS\Extbase\Configuration\BackendConfigurationManager');
-            $configuration = $backendConfigurationManager->getTypoScriptSetup();
-            $querySettings = array('respectSysLanguage');
-            foreach ($querySettings as $setting) {
-                if (isset($configuration['config.']['tx_vidi.']['persistence.']['backend.'][$this->type . '.'][$setting])) {
-                    $value = (bool)$configuration['config.']['tx_vidi.']['persistence.']['backend.'][$this->type . '.'][$setting];
-                    ObjectAccess::setProperty($this->querySettings, $setting, $value);
-                }
-            }
-        }
-
-        return $this->querySettings;
-    }
-
-    /**
-     * Returns the type this query cares for.
-     *
-     * @return string
-     * @api
-     */
-    public function getType()
-    {
-        return $this->type;
-    }
-
-    /**
-     * Sets the source to fetch the result from
-     *
-     * @param \TYPO3\CMS\Extbase\Persistence\Generic\Qom\SourceInterface $source
-     */
-    public function setSource(\TYPO3\CMS\Extbase\Persistence\Generic\Qom\SourceInterface $source)
-    {
-        $this->source = $source;
-    }
-
-    /**
-     * Returns the selectorn name or an empty string, if the source is not a selector
-     * TODO This has to be checked at another place
-     *
-     * @return string The selector name
-     */
-    protected function getSelectorName()
-    {
-        if ($this->getSource() instanceof \TYPO3\CMS\Extbase\Persistence\Generic\Qom\SelectorInterface) {
-            return $this->source->getSelectorName();
-        } else {
-            return '';
-        }
-    }
-
-    /**
-     * Gets the node-tuple source for this query.
-     *
-     * @return \TYPO3\CMS\Extbase\Persistence\Generic\Qom\SourceInterface the node-tuple source; non-null
-     */
-    public function getSource()
-    {
-        if ($this->source === null) {
-            $this->source = $this->qomFactory->selector($this->getType());
-        }
-        return $this->source;
-    }
-
-    /**
-     * Executes the query against the database and returns the result
-     *
-     * @return \TYPO3\CMS\Extbase\Persistence\QueryResultInterface|array The query result object or an array if $this->getQuerySettings()->getReturnRawQueryResult() is true
-     * @api
-     */
-    public function execute($returnRawQueryResult = false)
-    {
-        /** @var VidiDbBackend $backend */
-        $backend = $this->getObjectManager()->get(VidiDbBackend::class, $this);
-        return $backend->fetchResult();
-    }
-
-    /**
-     * Sets the property names to order the result by. Expected like this:
-     * array(
-     * 'foo' => \TYPO3\CMS\Extbase\Persistence\QueryInterface::ORDER_ASCENDING,
-     * 'bar' => \TYPO3\CMS\Extbase\Persistence\QueryInterface::ORDER_DESCENDING
-     * )
-     * where 'foo' and 'bar' are property names.
-     *
-     * @param array $orderings The property names to order by
-     * @return QueryInterface
-     * @api
-     */
-    public function setOrderings(array $orderings)
-    {
-        $this->orderings = $orderings;
-        return $this;
-    }
-
-    /**
-     * Returns the property names to order the result by. Like this:
-     * array(
-     * 'foo' => \TYPO3\CMS\Extbase\Persistence\QueryInterface::ORDER_ASCENDING,
-     * 'bar' => \TYPO3\CMS\Extbase\Persistence\QueryInterface::ORDER_DESCENDING
-     * )
-     *
-     * @return array
-     */
-    public function getOrderings()
-    {
-        return $this->orderings;
-    }
-
-    /**
-     * Sets the maximum size of the result set to limit. Returns $this to allow
-     * for chaining (fluid interface)
-     *
-     * @param integer $limit
-     * @throws \InvalidArgumentException
-     * @return QueryInterface
-     * @api
-     */
-    public function setLimit($limit)
-    {
-        if (!is_int($limit) || $limit < 1) {
-            throw new \InvalidArgumentException('The limit must be an integer >= 1', 1245071870);
-        }
-        $this->limit = $limit;
-        return $this;
-    }
-
-    /**
-     * Resets a previously set maximum size of the result set. Returns $this to allow
-     * for chaining (fluid interface)
-     *
-     * @return QueryInterface
-     * @api
-     */
-    public function unsetLimit()
-    {
-        unset($this->limit);
-        return $this;
-    }
-
-    /**
-     * Returns the maximum size of the result set to limit.
-     *
-     * @return integer
-     * @api
-     */
-    public function getLimit()
-    {
-        return $this->limit;
-    }
-
-    /**
-     * Sets the start offset of the result set to offset. Returns $this to
-     * allow for chaining (fluid interface)
-     *
-     * @param integer $offset
-     * @throws \InvalidArgumentException
-     * @return QueryInterface
-     * @api
-     */
-    public function setOffset($offset)
-    {
-        if (!is_int($offset) || $offset < 0) {
-            throw new \InvalidArgumentException('The offset must be a positive integer', 1245071872);
-        }
-        $this->offset = $offset;
-        return $this;
-    }
-
-    /**
-     * Returns the start offset of the result set.
-     *
-     * @return integer
-     * @api
-     */
-    public function getOffset()
-    {
-        return $this->offset;
-    }
-
-    /**
-     * The constraint used to limit the result set. Returns $this to allow
-     * for chaining (fluid interface)
-     *
-     * @param ConstraintInterface $constraint
-     * @return QueryInterface
-     * @api
-     */
-    public function matching($constraint)
-    {
-        $this->constraint = $constraint;
-        return $this;
-    }
-
-    /**
-     * Gets the constraint for this query.
-     *
-     * @return \TYPO3\CMS\Extbase\Persistence\Generic\Qom\ConstraintInterface the constraint, or null if none
-     * @api
-     */
-    public function getConstraint()
-    {
-        return $this->constraint;
-    }
-
-    /**
-     * Performs a logical conjunction of the given constraints. The method takes one or more contraints and concatenates them with a boolean AND.
-     * It also scepts a single array of constraints to be concatenated.
-     *
-     * @param mixed $constraint1 The first of multiple constraints or an array of constraints.
-     * @throws InvalidNumberOfConstraintsException
-     * @return \TYPO3\CMS\Extbase\Persistence\Generic\Qom\AndInterface
-     * @api
-     */
-    public function logicalAnd($constraint1)
-    {
-        if (is_array($constraint1)) {
-            $resultingConstraint = array_shift($constraint1);
-            $constraints = $constraint1;
-        } else {
-            $constraints = func_get_args();
-            $resultingConstraint = array_shift($constraints);
-        }
-        if ($resultingConstraint === null) {
-            throw new InvalidNumberOfConstraintsException('There must be at least one constraint or a non-empty array of constraints given.', 1401289500);
-        }
-        foreach ($constraints as $constraint) {
-            $resultingConstraint = $this->qomFactory->_and($resultingConstraint, $constraint);
-        }
-        return $resultingConstraint;
-    }
-
-    /**
-     * Performs a logical disjunction of the two given constraints
-     *
-     * @param mixed $constraint1 The first of multiple constraints or an array of constraints.
-     * @throws InvalidNumberOfConstraintsException
-     * @return \TYPO3\CMS\Extbase\Persistence\Generic\Qom\OrInterface
-     * @api
-     */
-    public function logicalOr($constraint1)
-    {
-        if (is_array($constraint1)) {
-            $resultingConstraint = array_shift($constraint1);
-            $constraints = $constraint1;
-        } else {
-            $constraints = func_get_args();
-            $resultingConstraint = array_shift($constraints);
-        }
-        if ($resultingConstraint === null) {
-            throw new InvalidNumberOfConstraintsException('There must be at least one constraint or a non-empty array of constraints given.', 1401289501);
-        }
-        foreach ($constraints as $constraint) {
-            $resultingConstraint = $this->qomFactory->_or($resultingConstraint, $constraint);
-        }
-        return $resultingConstraint;
-    }
-
-    /**
-     * Performs a logical negation of the given constraint
-     *
-     * @param ConstraintInterface $constraint Constraint to negate
-     * @throws \RuntimeException
-     * @return \TYPO3\CMS\Extbase\Persistence\Generic\Qom\NotInterface
-     * @api
-     */
-    public function logicalNot(ConstraintInterface $constraint)
-    {
-        return $this->qomFactory->not($constraint);
-    }
-
-    /**
-     * Returns an equals criterion used for matching objects against a query
-     *
-     * @param string $propertyName The name of the property to compare against
-     * @param mixed $operand The value to compare with
-     * @param boolean $caseSensitive Whether the equality test should be done case-sensitive
-     * @return \TYPO3\CMS\Extbase\Persistence\Generic\Qom\ComparisonInterface
-     * @api
-     */
-    public function equals($propertyName, $operand, $caseSensitive = true)
-    {
-        if (is_object($operand) || $caseSensitive) {
-            $comparison = $this->qomFactory->comparison($this->qomFactory->propertyValue($propertyName, $this->getSelectorName()), QueryInterface::OPERATOR_EQUAL_TO, $operand);
-        } else {
-            $comparison = $this->qomFactory->comparison($this->qomFactory->lowerCase($this->qomFactory->propertyValue($propertyName, $this->getSelectorName())), QueryInterface::OPERATOR_EQUAL_TO, \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(\TYPO3\CMS\Core\Charset\CharsetConverter::class)->conv_case(\TYPO3\CMS\Extbase\Persistence\Generic\Query::CHARSET, $operand, 'toLower'));
-        }
-        return $comparison;
-    }
-
-    /**
-     * Returns a like criterion used for matching objects against a query
-     *
-     * @param string $propertyName The name of the property to compare against
-     * @param mixed $operand The value to compare with
-     * @param boolean $caseSensitive Whether the matching should be done case-sensitive
-     * @return \TYPO3\CMS\Extbase\Persistence\Generic\Qom\ComparisonInterface
-     * @api
-     */
-    public function like($propertyName, $operand, $caseSensitive = true)
-    {
-        return $this->qomFactory->comparison($this->qomFactory->propertyValue($propertyName, $this->getSelectorName()), QueryInterface::OPERATOR_LIKE, $operand);
-    }
-
-    /**
-     * Returns a "contains" criterion used for matching objects against a query.
-     * It matches if the multivalued property contains the given operand.
-     *
-     * @param string $propertyName The name of the (multivalued) property to compare against
-     * @param mixed $operand The value to compare with
-     * @return \TYPO3\CMS\Extbase\Persistence\Generic\Qom\ComparisonInterface
-     * @api
-     */
-    public function contains($propertyName, $operand)
-    {
-        return $this->qomFactory->comparison($this->qomFactory->propertyValue($propertyName, $this->getSelectorName()), QueryInterface::OPERATOR_CONTAINS, $operand);
-    }
-
-    /**
-     * Returns an "in" criterion used for matching objects against a query. It
-     * matches if the property's value is contained in the multivalued operand.
-     *
-     * @param string $propertyName The name of the property to compare against
-     * @param mixed $operand The value to compare with, multivalued
-     * @throws UnexpectedTypeException
-     * @return \TYPO3\CMS\Extbase\Persistence\Generic\Qom\ComparisonInterface
-     * @api
-     */
-    public function in($propertyName, $operand)
-    {
-        if (!is_array($operand) && !$operand instanceof \ArrayAccess && !$operand instanceof \Traversable) {
-            throw new UnexpectedTypeException('The "in" operator must be given a mutlivalued operand (array, ArrayAccess, Traversable).', 1264678095);
-        }
-        return $this->qomFactory->comparison($this->qomFactory->propertyValue($propertyName, $this->getSelectorName()), QueryInterface::OPERATOR_IN, $operand);
-    }
-
-    /**
-     * Returns a less than criterion used for matching objects against a query
-     *
-     * @param string $propertyName The name of the property to compare against
-     * @param mixed $operand The value to compare with
-     * @return \TYPO3\CMS\Extbase\Persistence\Generic\Qom\ComparisonInterface
-     * @api
-     */
-    public function lessThan($propertyName, $operand)
-    {
-        return $this->qomFactory->comparison($this->qomFactory->propertyValue($propertyName, $this->getSelectorName()), QueryInterface::OPERATOR_LESS_THAN, $operand);
-    }
-
-    /**
-     * Returns a less or equal than criterion used for matching objects against a query
-     *
-     * @param string $propertyName The name of the property to compare against
-     * @param mixed $operand The value to compare with
-     * @return \TYPO3\CMS\Extbase\Persistence\Generic\Qom\ComparisonInterface
-     * @api
-     */
-    public function lessThanOrEqual($propertyName, $operand)
-    {
-        return $this->qomFactory->comparison($this->qomFactory->propertyValue($propertyName, $this->getSelectorName()), QueryInterface::OPERATOR_LESS_THAN_OR_EQUAL_TO, $operand);
-    }
-
-    /**
-     * Returns a greater than criterion used for matching objects against a query
-     *
-     * @param string $propertyName The name of the property to compare against
-     * @param mixed $operand The value to compare with
-     * @return \TYPO3\CMS\Extbase\Persistence\Generic\Qom\ComparisonInterface
-     * @api
-     */
-    public function greaterThan($propertyName, $operand)
-    {
-        return $this->qomFactory->comparison($this->qomFactory->propertyValue($propertyName, $this->getSelectorName()), QueryInterface::OPERATOR_GREATER_THAN, $operand);
-    }
-
-    /**
-     * Returns a greater than or equal criterion used for matching objects against a query
-     *
-     * @param string $propertyName The name of the property to compare against
-     * @param mixed $operand The value to compare with
-     * @return \TYPO3\CMS\Extbase\Persistence\Generic\Qom\ComparisonInterface
-     * @api
-     */
-    public function greaterThanOrEqual($propertyName, $operand)
-    {
-        return $this->qomFactory->comparison($this->qomFactory->propertyValue($propertyName, $this->getSelectorName()), QueryInterface::OPERATOR_GREATER_THAN_OR_EQUAL_TO, $operand);
-    }
-
-    /**
-     * Returns the query result count.
-     *
-     * @return integer The query result count
-     * @api
-     */
-    public function count()
-    {
-        /** @var VidiDbBackend $backend */
-        $backend = $this->getObjectManager()->get(VidiDbBackend::class, $this);
-        return $backend->countResult();
-    }
-
-    /**
-     * Returns an "isEmpty" criterion used for matching objects against a query.
-     * It matches if the multivalued property contains no values or is null.
-     *
-     * @param string $propertyName The name of the multivalued property to compare against
-     * @throws \TYPO3\CMS\Extbase\Persistence\Generic\Exception\NotImplementedException
-     * @throws \TYPO3\CMS\Extbase\Persistence\Exception\InvalidQueryException if used on a single-valued property
-     * @api
-     */
-    public function isEmpty($propertyName)
-    {
-        throw new \TYPO3\CMS\Extbase\Persistence\Generic\Exception\NotImplementedException(__METHOD__);
-    }
-
-    /**
-     * @return string
-     */
-    public function getDistinct()
-    {
-        return $this->distinct;
-    }
-
-    /**
-     * @param string $distinct
-     * @return $this
-     */
-    public function setDistinct($distinct)
-    {
-        $this->distinct = $distinct;
-        return $this;
-    }
-
-    /**
-     * Sets the statement of this query. If you use this, you will lose the abstraction from a concrete storage
-     * backend (database).
-     *
-     * @param string|\TYPO3\CMS\Core\Database\PreparedStatement $statement The statement
-     * @param array $parameters An array of parameters. These will be bound to placeholders '?' in the $statement.
-     * @return QueryInterface
-     */
-    public function statement($statement, array $parameters = array())
-    {
-        $this->statement = $this->qomFactory->statement($statement, $parameters);
-        return $this;
-    }
-
-    /**
-     * Returns the statement of this query.
-     *
-     * @return \TYPO3\CMS\Extbase\Persistence\Generic\Qom\Statement
-     */
-    public function getStatement()
-    {
-        return $this->statement;
-    }
-
-    /**
-     * Returns whether the current mode is Backend.
-     *
-     * @return bool
-     */
-    protected function isBackendMode()
-    {
-        return TYPO3_MODE == 'BE';
-    }
-
-    /**
-     * @return string
-     */
-    public function getSourceFieldName()
-    {
-        return $this->sourceFieldName;
-    }
-
-    /**
-     * @param string $sourceFieldName
-     * @return $this
-     */
-    public function setSourceFieldName($sourceFieldName)
-    {
-        $this->sourceFieldName = $sourceFieldName;
-        return $this;
-    }
-
-    /**
-     * @return object|\TYPO3\CMS\Extbase\Object\ObjectManager
-     */
-    protected function getObjectManager()
-    {
-        return GeneralUtility::makeInstance(\TYPO3\CMS\Extbase\Object\ObjectManager::class);
-    }
+	/**
+	 * An inner join.
+	 */
+	const JCR_JOIN_TYPE_INNER = '{http://www.jcp.org/jcr/1.0}joinTypeInner';
+
+	/**
+	 * A left-outer join.
+	 */
+	const JCR_JOIN_TYPE_LEFT_OUTER = '{http://www.jcp.org/jcr/1.0}joinTypeLeftOuter';
+
+	/**
+	 * A right-outer join.
+	 */
+	const JCR_JOIN_TYPE_RIGHT_OUTER = '{http://www.jcp.org/jcr/1.0}joinTypeRightOuter';
+
+	/**
+	 * Charset of strings in QOM
+	 */
+	const CHARSET = 'utf-8';
+
+	/**
+	 * @var string
+	 */
+	protected $sourceFieldName;
+
+	/**
+	 * @var string
+	 */
+	protected $type;
+
+	/**
+	 * @var \TYPO3\CMS\Extbase\Persistence\PersistenceManagerInterface
+	 */
+	protected $persistenceManager;
+
+	/**
+	 * @var \TYPO3\CMS\Extbase\Persistence\Generic\Qom\QueryObjectModelFactory
+	 */
+	protected $qomFactory;
+
+	/**
+	 * @var \TYPO3\CMS\Extbase\Persistence\Generic\Qom\SourceInterface
+	 */
+	protected $source;
+
+	/**
+	 * @var ConstraintInterface
+	 */
+	protected $constraint;
+
+	/**
+	 * @var \TYPO3\CMS\Extbase\Persistence\Generic\Qom\Statement
+	 */
+	protected $statement;
+
+	/**
+	 * @var array
+	 */
+	protected $orderings = [];
+
+	/**
+	 * @var int
+	 */
+	protected $limit;
+
+	/**
+	 * @var int
+	 */
+	protected $offset;
+
+	/**
+	 * Apply DISTINCT upon property.
+	 *
+	 * @var string
+	 */
+	protected $distinct;
+
+	/**
+	 * The query settings.
+	 *
+	 * @var \Fab\Vidi\Persistence\QuerySettings
+	 * @inject
+	 */
+	protected $querySettings;
+
+	/**
+	 * Constructs a query object working on the given class name
+	 *
+	 * @param string $type
+	 */
+	public function __construct($type)
+	{
+		$this->type = $type;
+	}
+
+	/**
+	 * Injects the persistence manager, used to fetch the CR session
+	 *
+	 * @param \TYPO3\CMS\Extbase\Persistence\PersistenceManagerInterface $persistenceManager
+	 * @return void
+	 */
+	public function injectPersistenceManager(\TYPO3\CMS\Extbase\Persistence\PersistenceManagerInterface $persistenceManager)
+	{
+		$this->persistenceManager = $persistenceManager;
+	}
+
+	/**
+	 * Injects the Query Object Model Factory
+	 *
+	 * @param \TYPO3\CMS\Extbase\Persistence\Generic\Qom\QueryObjectModelFactory $qomFactory
+	 * @return void
+	 */
+	public function injectQomFactory(\TYPO3\CMS\Extbase\Persistence\Generic\Qom\QueryObjectModelFactory $qomFactory)
+	{
+		$this->qomFactory = $qomFactory;
+	}
+
+	/**
+	 * Sets the Query Settings. These Query settings must match the settings expected by
+	 * the specific Storage Backend.
+	 *
+	 * @param \TYPO3\CMS\Extbase\Persistence\Generic\QuerySettingsInterface $querySettings The Query Settings
+	 * @return void
+	 * @api This method is not part of FLOW3 API
+	 */
+	public function setQuerySettings(\TYPO3\CMS\Extbase\Persistence\Generic\QuerySettingsInterface $querySettings)
+	{
+		$this->querySettings = $querySettings;
+	}
+
+	/**
+	 * Returns the Query Settings.
+	 *
+	 * @throws \Exception
+	 * @return \Fab\Vidi\Persistence\QuerySettings $querySettings The Query Settings
+	 * @api This method is not part of FLOW3 API
+	 */
+	public function getQuerySettings()
+	{
+		if (!$this->querySettings instanceof \TYPO3\CMS\Extbase\Persistence\Generic\QuerySettingsInterface) {
+			throw new \TYPO3\CMS\Extbase\Persistence\Generic\Exception('Tried to get the query settings without setting them before.', 1248689115);
+		}
+
+		// Apply possible settings to the query.
+		if ($this->isBackendMode()) {
+			/** @var \TYPO3\CMS\Extbase\Configuration\BackendConfigurationManager $backendConfigurationManager */
+			$backendConfigurationManager = $this->getObjectManager()->get('TYPO3\CMS\Extbase\Configuration\BackendConfigurationManager');
+			$configuration = $backendConfigurationManager->getTypoScriptSetup();
+			$querySettings = array('respectSysLanguage');
+			foreach ($querySettings as $setting) {
+				if (isset($configuration['config.']['tx_vidi.']['persistence.']['backend.'][$this->type . '.'][$setting])) {
+					$value = (bool)$configuration['config.']['tx_vidi.']['persistence.']['backend.'][$this->type . '.'][$setting];
+					ObjectAccess::setProperty($this->querySettings, $setting, $value);
+				}
+			}
+		}
+
+		return $this->querySettings;
+	}
+
+	/**
+	 * Returns the type this query cares for.
+	 *
+	 * @return string
+	 * @api
+	 */
+	public function getType()
+	{
+		return $this->type;
+	}
+
+	/**
+	 * Sets the source to fetch the result from
+	 *
+	 * @param \TYPO3\CMS\Extbase\Persistence\Generic\Qom\SourceInterface $source
+	 */
+	public function setSource(\TYPO3\CMS\Extbase\Persistence\Generic\Qom\SourceInterface $source)
+	{
+		$this->source = $source;
+	}
+
+	/**
+	 * Returns the selectorn name or an empty string, if the source is not a selector
+	 * TODO This has to be checked at another place
+	 *
+	 * @return string The selector name
+	 */
+	protected function getSelectorName()
+	{
+		if ($this->getSource() instanceof \TYPO3\CMS\Extbase\Persistence\Generic\Qom\SelectorInterface) {
+			return $this->source->getSelectorName();
+		} else {
+			return '';
+		}
+	}
+
+	/**
+	 * Gets the node-tuple source for this query.
+	 *
+	 * @return \TYPO3\CMS\Extbase\Persistence\Generic\Qom\SourceInterface the node-tuple source; non-null
+	 */
+	public function getSource()
+	{
+		if ($this->source === null) {
+			$this->source = $this->qomFactory->selector($this->getType());
+		}
+		return $this->source;
+	}
+
+	/**
+	 * Executes the query against the database and returns the result
+	 *
+	 * @return \TYPO3\CMS\Extbase\Persistence\QueryResultInterface|array The query result object or an array if $this->getQuerySettings()->getReturnRawQueryResult() is true
+	 * @api
+	 */
+	public function execute($returnRawQueryResult = false)
+	{
+		/** @var VidiDbBackend $backend */
+		$backend = $this->getObjectManager()->get(VidiDbBackend::class, $this);
+		return $backend->fetchResult();
+	}
+
+	/**
+	 * Sets the property names to order the result by. Expected like this:
+	 * array(
+	 * 'foo' => \TYPO3\CMS\Extbase\Persistence\QueryInterface::ORDER_ASCENDING,
+	 * 'bar' => \TYPO3\CMS\Extbase\Persistence\QueryInterface::ORDER_DESCENDING
+	 * )
+	 * where 'foo' and 'bar' are property names.
+	 *
+	 * @param array $orderings The property names to order by
+	 * @return QueryInterface
+	 * @api
+	 */
+	public function setOrderings(array $orderings)
+	{
+		$this->orderings = $orderings;
+		return $this;
+	}
+
+	/**
+	 * Returns the property names to order the result by. Like this:
+	 * array(
+	 * 'foo' => \TYPO3\CMS\Extbase\Persistence\QueryInterface::ORDER_ASCENDING,
+	 * 'bar' => \TYPO3\CMS\Extbase\Persistence\QueryInterface::ORDER_DESCENDING
+	 * )
+	 *
+	 * @return array
+	 */
+	public function getOrderings()
+	{
+		return $this->orderings;
+	}
+
+	/**
+	 * Sets the maximum size of the result set to limit. Returns $this to allow
+	 * for chaining (fluid interface)
+	 *
+	 * @param integer $limit
+	 * @throws \InvalidArgumentException
+	 * @return QueryInterface
+	 * @api
+	 */
+	public function setLimit($limit)
+	{
+		if (!is_int($limit) || $limit < 1) {
+			throw new \InvalidArgumentException('The limit must be an integer >= 1', 1245071870);
+		}
+		$this->limit = $limit;
+		return $this;
+	}
+
+	/**
+	 * Resets a previously set maximum size of the result set. Returns $this to allow
+	 * for chaining (fluid interface)
+	 *
+	 * @return QueryInterface
+	 * @api
+	 */
+	public function unsetLimit()
+	{
+		unset($this->limit);
+		return $this;
+	}
+
+	/**
+	 * Returns the maximum size of the result set to limit.
+	 *
+	 * @return integer
+	 * @api
+	 */
+	public function getLimit()
+	{
+		return $this->limit;
+	}
+
+	/**
+	 * Sets the start offset of the result set to offset. Returns $this to
+	 * allow for chaining (fluid interface)
+	 *
+	 * @param integer $offset
+	 * @throws \InvalidArgumentException
+	 * @return QueryInterface
+	 * @api
+	 */
+	public function setOffset($offset)
+	{
+		if (!is_int($offset) || $offset < 0) {
+			throw new \InvalidArgumentException('The offset must be a positive integer', 1245071872);
+		}
+		$this->offset = $offset;
+		return $this;
+	}
+
+	/**
+	 * Returns the start offset of the result set.
+	 *
+	 * @return integer
+	 * @api
+	 */
+	public function getOffset()
+	{
+		return $this->offset;
+	}
+
+	/**
+	 * The constraint used to limit the result set. Returns $this to allow
+	 * for chaining (fluid interface)
+	 *
+	 * @param ConstraintInterface $constraint
+	 * @return QueryInterface
+	 * @api
+	 */
+	public function matching($constraint)
+	{
+		$this->constraint = $constraint;
+		return $this;
+	}
+
+	/**
+	 * Gets the constraint for this query.
+	 *
+	 * @return \TYPO3\CMS\Extbase\Persistence\Generic\Qom\ConstraintInterface the constraint, or null if none
+	 * @api
+	 */
+	public function getConstraint()
+	{
+		return $this->constraint;
+	}
+
+	/**
+	 * Performs a logical conjunction of the given constraints. The method takes one or more contraints and concatenates them with a boolean AND.
+	 * It also scepts a single array of constraints to be concatenated.
+	 *
+	 * @param mixed $constraint1 The first of multiple constraints or an array of constraints.
+	 * @throws InvalidNumberOfConstraintsException
+	 * @return \TYPO3\CMS\Extbase\Persistence\Generic\Qom\AndInterface
+	 * @api
+	 */
+	public function logicalAnd($constraint1)
+	{
+		if (is_array($constraint1)) {
+			$resultingConstraint = array_shift($constraint1);
+			$constraints = $constraint1;
+		} else {
+			$constraints = func_get_args();
+			$resultingConstraint = array_shift($constraints);
+		}
+		if ($resultingConstraint === null) {
+			throw new InvalidNumberOfConstraintsException('There must be at least one constraint or a non-empty array of constraints given.', 1401289500);
+		}
+		foreach ($constraints as $constraint) {
+			$resultingConstraint = $this->qomFactory->_and($resultingConstraint, $constraint);
+		}
+		return $resultingConstraint;
+	}
+
+	/**
+	 * Performs a logical disjunction of the two given constraints
+	 *
+	 * @param mixed $constraint1 The first of multiple constraints or an array of constraints.
+	 * @throws InvalidNumberOfConstraintsException
+	 * @return \TYPO3\CMS\Extbase\Persistence\Generic\Qom\OrInterface
+	 * @api
+	 */
+	public function logicalOr($constraint1)
+	{
+		if (is_array($constraint1)) {
+			$resultingConstraint = array_shift($constraint1);
+			$constraints = $constraint1;
+		} else {
+			$constraints = func_get_args();
+			$resultingConstraint = array_shift($constraints);
+		}
+		if ($resultingConstraint === null) {
+			throw new InvalidNumberOfConstraintsException('There must be at least one constraint or a non-empty array of constraints given.', 1401289501);
+		}
+		foreach ($constraints as $constraint) {
+			$resultingConstraint = $this->qomFactory->_or($resultingConstraint, $constraint);
+		}
+		return $resultingConstraint;
+	}
+
+	/**
+	 * Performs a logical negation of the given constraint
+	 *
+	 * @param ConstraintInterface $constraint Constraint to negate
+	 * @throws \RuntimeException
+	 * @return \TYPO3\CMS\Extbase\Persistence\Generic\Qom\NotInterface
+	 * @api
+	 */
+	public function logicalNot(ConstraintInterface $constraint)
+	{
+		return $this->qomFactory->not($constraint);
+	}
+
+	/**
+	 * Returns an equals criterion used for matching objects against a query
+	 *
+	 * @param string $propertyName The name of the property to compare against
+	 * @param mixed $operand The value to compare with
+	 * @param boolean $caseSensitive Whether the equality test should be done case-sensitive
+	 * @return \TYPO3\CMS\Extbase\Persistence\Generic\Qom\ComparisonInterface
+	 * @api
+	 */
+	public function equals($propertyName, $operand, $caseSensitive = true)
+	{
+		if (is_object($operand) || $caseSensitive) {
+			$comparison = $this->qomFactory->comparison($this->qomFactory->propertyValue($propertyName, $this->getSelectorName()), QueryInterface::OPERATOR_EQUAL_TO, $operand);
+		} else {
+			$comparison = $this->qomFactory->comparison($this->qomFactory->lowerCase($this->qomFactory->propertyValue($propertyName, $this->getSelectorName())), QueryInterface::OPERATOR_EQUAL_TO, \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(\TYPO3\CMS\Core\Charset\CharsetConverter::class)->conv_case(\TYPO3\CMS\Extbase\Persistence\Generic\Query::CHARSET, $operand, 'toLower'));
+		}
+		return $comparison;
+	}
+
+	/**
+	 * Returns a like criterion used for matching objects against a query
+	 *
+	 * @param string $propertyName The name of the property to compare against
+	 * @param mixed $operand The value to compare with
+	 * @param boolean $caseSensitive Whether the matching should be done case-sensitive
+	 * @return \TYPO3\CMS\Extbase\Persistence\Generic\Qom\ComparisonInterface
+	 * @api
+	 */
+	public function like($propertyName, $operand, $caseSensitive = true)
+	{
+		return $this->qomFactory->comparison($this->qomFactory->propertyValue($propertyName, $this->getSelectorName()), QueryInterface::OPERATOR_LIKE, $operand);
+	}
+
+	/**
+	 * Returns a "contains" criterion used for matching objects against a query.
+	 * It matches if the multivalued property contains the given operand.
+	 *
+	 * @param string $propertyName The name of the (multivalued) property to compare against
+	 * @param mixed $operand The value to compare with
+	 * @return \TYPO3\CMS\Extbase\Persistence\Generic\Qom\ComparisonInterface
+	 * @api
+	 */
+	public function contains($propertyName, $operand)
+	{
+		return $this->qomFactory->comparison($this->qomFactory->propertyValue($propertyName, $this->getSelectorName()), QueryInterface::OPERATOR_CONTAINS, $operand);
+	}
+
+	/**
+	 * Returns an "in" criterion used for matching objects against a query. It
+	 * matches if the property's value is contained in the multivalued operand.
+	 *
+	 * @param string $propertyName The name of the property to compare against
+	 * @param mixed $operand The value to compare with, multivalued
+	 * @throws UnexpectedTypeException
+	 * @return \TYPO3\CMS\Extbase\Persistence\Generic\Qom\ComparisonInterface
+	 * @api
+	 */
+	public function in($propertyName, $operand)
+	{
+		if (!is_array($operand) && !$operand instanceof \ArrayAccess && !$operand instanceof \Traversable) {
+			throw new UnexpectedTypeException('The "in" operator must be given a mutlivalued operand (array, ArrayAccess, Traversable).', 1264678095);
+		}
+		return $this->qomFactory->comparison($this->qomFactory->propertyValue($propertyName, $this->getSelectorName()), QueryInterface::OPERATOR_IN, $operand);
+	}
+
+	/**
+	 * Returns a less than criterion used for matching objects against a query
+	 *
+	 * @param string $propertyName The name of the property to compare against
+	 * @param mixed $operand The value to compare with
+	 * @return \TYPO3\CMS\Extbase\Persistence\Generic\Qom\ComparisonInterface
+	 * @api
+	 */
+	public function lessThan($propertyName, $operand)
+	{
+		return $this->qomFactory->comparison($this->qomFactory->propertyValue($propertyName, $this->getSelectorName()), QueryInterface::OPERATOR_LESS_THAN, $operand);
+	}
+
+	/**
+	 * Returns a less or equal than criterion used for matching objects against a query
+	 *
+	 * @param string $propertyName The name of the property to compare against
+	 * @param mixed $operand The value to compare with
+	 * @return \TYPO3\CMS\Extbase\Persistence\Generic\Qom\ComparisonInterface
+	 * @api
+	 */
+	public function lessThanOrEqual($propertyName, $operand)
+	{
+		return $this->qomFactory->comparison($this->qomFactory->propertyValue($propertyName, $this->getSelectorName()), QueryInterface::OPERATOR_LESS_THAN_OR_EQUAL_TO, $operand);
+	}
+
+	/**
+	 * Returns a greater than criterion used for matching objects against a query
+	 *
+	 * @param string $propertyName The name of the property to compare against
+	 * @param mixed $operand The value to compare with
+	 * @return \TYPO3\CMS\Extbase\Persistence\Generic\Qom\ComparisonInterface
+	 * @api
+	 */
+	public function greaterThan($propertyName, $operand)
+	{
+		return $this->qomFactory->comparison($this->qomFactory->propertyValue($propertyName, $this->getSelectorName()), QueryInterface::OPERATOR_GREATER_THAN, $operand);
+	}
+
+	/**
+	 * Returns a greater than or equal criterion used for matching objects against a query
+	 *
+	 * @param string $propertyName The name of the property to compare against
+	 * @param mixed $operand The value to compare with
+	 * @return \TYPO3\CMS\Extbase\Persistence\Generic\Qom\ComparisonInterface
+	 * @api
+	 */
+	public function greaterThanOrEqual($propertyName, $operand)
+	{
+		return $this->qomFactory->comparison($this->qomFactory->propertyValue($propertyName, $this->getSelectorName()), QueryInterface::OPERATOR_GREATER_THAN_OR_EQUAL_TO, $operand);
+	}
+
+	/**
+	 * Returns the query result count.
+	 *
+	 * @return integer The query result count
+	 * @api
+	 */
+	public function count()
+	{
+		/** @var VidiDbBackend $backend */
+		$backend = $this->getObjectManager()->get(VidiDbBackend::class, $this);
+		return $backend->countResult();
+	}
+
+	/**
+	 * Returns an "isEmpty" criterion used for matching objects against a query.
+	 * It matches if the multivalued property contains no values or is null.
+	 *
+	 * @param string $propertyName The name of the multivalued property to compare against
+	 * @throws \TYPO3\CMS\Extbase\Persistence\Generic\Exception\NotImplementedException
+	 * @throws \TYPO3\CMS\Extbase\Persistence\Exception\InvalidQueryException if used on a single-valued property
+	 * @api
+	 */
+	public function isEmpty($propertyName)
+	{
+		throw new \TYPO3\CMS\Extbase\Persistence\Generic\Exception\NotImplementedException(__METHOD__);
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getDistinct()
+	{
+		return $this->distinct;
+	}
+
+	/**
+	 * @param string $distinct
+	 * @return $this
+	 */
+	public function setDistinct($distinct)
+	{
+		$this->distinct = $distinct;
+		return $this;
+	}
+
+	/**
+	 * Sets the statement of this query. If you use this, you will lose the abstraction from a concrete storage
+	 * backend (database).
+	 *
+	 * @param string|\TYPO3\CMS\Core\Database\PreparedStatement $statement The statement
+	 * @param array $parameters An array of parameters. These will be bound to placeholders '?' in the $statement.
+	 * @return QueryInterface
+	 */
+	public function statement($statement, array $parameters = array())
+	{
+		$this->statement = $this->qomFactory->statement($statement, $parameters);
+		return $this;
+	}
+
+	/**
+	 * Returns the statement of this query.
+	 *
+	 * @return \TYPO3\CMS\Extbase\Persistence\Generic\Qom\Statement
+	 */
+	public function getStatement()
+	{
+		return $this->statement;
+	}
+
+	/**
+	 * Returns whether the current mode is Backend.
+	 *
+	 * @return bool
+	 */
+	protected function isBackendMode()
+	{
+		return TYPO3_MODE == 'BE';
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getSourceFieldName()
+	{
+		return $this->sourceFieldName;
+	}
+
+	/**
+	 * @param string $sourceFieldName
+	 * @return $this
+	 */
+	public function setSourceFieldName($sourceFieldName)
+	{
+		$this->sourceFieldName = $sourceFieldName;
+		return $this;
+	}
+
+	/**
+	 * @return object|\TYPO3\CMS\Extbase\Object\ObjectManager
+	 */
+	protected function getObjectManager()
+	{
+		return GeneralUtility::makeInstance(\TYPO3\CMS\Extbase\Object\ObjectManager::class);
+	}
 
 }