The classes to refactor:

• \eZ\Publish\Core\Search\Legacy\Content\Gateway\DoctrineDatabase
• \eZ\Publish\Core\Search\Legacy\Content\Location\Gateway\DoctrineDatabase
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\CriterionHandler
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\CriterionHandler\Collection
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\CriterionHandler\ContentId
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\CriterionHandler\ContentTypeGroupId
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\CriterionHandler\ContentTypeId
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\CriterionHandler\ContentTypeIdentifier
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\CriterionHandler\Converter
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\CriterionHandler\DateMetadata
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\CriterionHandler\Field
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\CriterionHandler\FieldBase
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\CriterionHandler\FieldEmpty
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\CriterionHandler\FieldRelation
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\CriterionHandler\FullText
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\CriterionHandler\Handler
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\CriterionHandler\Keyword
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\CriterionHandler\LanguageCode
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\CriterionHandler\LogicalAnd
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\CriterionHandler\LogicalNot
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\CriterionHandler\LogicalOr
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\CriterionHandler\MapLocationDistance
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\CriterionHandler\MatchAll
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\CriterionHandler\MatchNone
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\CriterionHandler\ObjectStateId
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\CriterionHandler\RemoteId
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\CriterionHandler\SectionId
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\CriterionHandler\Simple
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\CriterionHandler\UserMetadata
• \eZ\Publish\Core\Search\Legacy\Content\Location\Gateway\CriterionHandler\Ancestor
• \eZ\Publish\Core\Search\Legacy\Content\Location\Gateway\CriterionHandler\Location\Depth
• \eZ\Publish\Core\Search\Legacy\Content\Location\Gateway\CriterionHandler\LocationId
• \eZ\Publish\Core\Search\Legacy\Content\Location\Gateway\CriterionHandler\Location\IsMainLocation
• \eZ\Publish\Core\Search\Legacy\Content\Location\Gateway\CriterionHandler\Location\Priority
• \eZ\Publish\Core\Search\Legacy\Content\Location\Gateway\CriterionHandler\LocationRemoteId
• \eZ\Publish\Core\Search\Legacy\Content\Location\Gateway\CriterionHandler\ParentLocationId
• \eZ\Publish\Core\Search\Legacy\Content\Location\Gateway\CriterionHandler\Subtree
• \eZ\Publish\Core\Search\Legacy\Content\Location\Gateway\CriterionHandler\Visibility
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\SortClauseHandler
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\SortClauseHandler\AbstractRandom
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\SortClauseHandler\ContentId
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\SortClauseHandler\ContentName
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\SortClauseHandler\DateModified
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\SortClauseHandler\DatePublished
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\SortClauseHandler\Field
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\SortClauseHandler\MapLocationDistance
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\SortClauseHandler\SectionIdentifier
• \eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\SortClauseHandler\SectionName
• \eZ\Publish\Core\Search\Legacy\Content\Location\Gateway\DoctrineDatabase
• \eZ\Publish\Core\Search\Legacy\Content\Location\Gateway\SortClauseHandler\Location\Depth
• \eZ\Publish\Core\Search\Legacy\Content\Location\Gateway\SortClauseHandler\Location\Id
• \eZ\Publish\Core\Search\Legacy\Content\Location\Gateway\SortClauseHandler\Location\IsMainLocation
• \eZ\Publish\Core\Search\Legacy\Content\Location\Gateway\SortClauseHandler\Location\Path
• \eZ\Publish\Core\Search\Legacy\Content\Location\Gateway\SortClauseHandler\Location\Priority
• \eZ\Publish\Core\Search\Legacy\Content\Location\Gateway\SortClauseHandler\Location\Visibility