moving final class to private, new interface in public

Signed-off-by: Maxence Lange <maxence@artificial-owl.com>

10 files changed, 899 insertions, 577 deletions

diff --git a/lib/public/Files_FullTextSearch/Model/AFilesDocument.php b/lib/public/Files_FullTextSearch/Model/AFilesDocument.php
index 3eed956df84..143788f33ad 100644
--- a/lib/public/Files_FullTextSearch/Model/AFilesDocument.php
+++ b/lib/public/Files_FullTextSearch/Model/AFilesDocument.php
@@ -31,13 +31,14 @@ declare(strict_types=1);
 namespace OCP\Files_FullTextSearch\Model;
 
 
-use OCP\FullTextSearch\Model\IndexDocument;
+use OC\FullTextSearch\Model\IndexDocument;
+use OCP\FullTextSearch\Model\IIndexDocument;
 
 
 /**
  * Abstract Class AFilesDocument
  *
- * This is mostly used by 3rd party apps that want to complete the IndexDocument
+ * This is mostly used by 3rd party apps that want to complete the IIndexDocument
  * with more information about a file before its index:
  *
  *    \OC::$server->getEventDispatcher()->addListener(
@@ -48,7 +49,6 @@ use OCP\FullTextSearch\Model\IndexDocument;
  *
  *            // @var \OCP\Files_FullTextSearch\Model\AFilesDocument $document
  *            $document = $e->getArgument('document');
- *
  *        }
  *    );
  *
@@ -107,6 +107,5 @@ abstract class AFilesDocument extends IndexDocument {
 	 */
 	abstract public function getPath(): string;
 
-
 }
 
diff --git a/lib/public/FullTextSearch/IFullTextSearchPlatform.php b/lib/public/FullTextSearch/IFullTextSearchPlatform.php
index f3f9a35bae2..01016269f6b 100644
--- a/lib/public/FullTextSearch/IFullTextSearchPlatform.php
+++ b/lib/public/FullTextSearch/IFullTextSearchPlatform.php
@@ -31,9 +31,9 @@ declare(strict_types=1);
 namespace OCP\FullTextSearch;
 
 
-use OCP\FullTextSearch\Model\DocumentAccess;
+use OCP\FullTextSearch\Model\IDocumentAccess;
 use OCP\FullTextSearch\Model\IIndex;
-use OCP\FullTextSearch\Model\IndexDocument;
+use OCP\FullTextSearch\Model\IIndexDocument;
 use OCP\FullTextSearch\Model\IRunner;
 use OCP\FullTextSearch\Model\ISearchResult;
 
@@ -190,11 +190,11 @@ interface IFullTextSearchPlatform {
 	 *
 	 * @since 15.0.0
 	 *
-	 * @param IndexDocument $document
+	 * @param IIndexDocument $document
 	 *
 	 * @return IIndex
 	 */
-	public function indexDocument(IndexDocument $document): IIndex;
+	public function indexDocument(IIndexDocument $document): IIndex;
 
 
 	/**
@@ -204,9 +204,9 @@ interface IFullTextSearchPlatform {
 	 * @since 15.0.0
 	 *
 	 * @param ISearchResult $result
-	 * @param DocumentAccess $access
+	 * @param IDocumentAccess $access
 	 */
-	public function searchRequest(ISearchResult $result, DocumentAccess $access);
+	public function searchRequest(ISearchResult $result, IDocumentAccess $access);
 
 
 	/**
@@ -218,9 +218,9 @@ interface IFullTextSearchPlatform {
 	 * @param string $providerId
 	 * @param string $documentId
 	 *
-	 * @return IndexDocument
+	 * @return IIndexDocument
 	 */
-	public function getDocument(string $providerId, string $documentId): IndexDocument;
+	public function getDocument(string $providerId, string $documentId): IIndexDocument;
 
 
 }
diff --git a/lib/public/FullTextSearch/IFullTextSearchProvider.php b/lib/public/FullTextSearch/IFullTextSearchProvider.php
index a46ef051491..b72c9e55435 100644
--- a/lib/public/FullTextSearch/IFullTextSearchProvider.php
+++ b/lib/public/FullTextSearch/IFullTextSearchProvider.php
@@ -33,11 +33,11 @@ namespace OCP\FullTextSearch;
 
 use OCP\FullTextSearch\Model\IIndex;
 use OCP\FullTextSearch\Model\IIndexOptions;
-use OCP\FullTextSearch\Model\IndexDocument;
+use OCP\FullTextSearch\Model\IIndexDocument;
 use OCP\FullTextSearch\Model\IRunner;
 use OCP\FullTextSearch\Model\ISearchRequest;
 use OCP\FullTextSearch\Model\ISearchResult;
-use OCP\FullTextSearch\Model\SearchTemplate;
+use OCP\FullTextSearch\Model\ISearchTemplate;
 
 
 /**
@@ -115,16 +115,16 @@ interface IFullTextSearchProvider {
 
 
 	/**
-	 * Must returns a SearchTemplate that contains displayable items and
+	 * Must returns a ISearchTemplate that contains displayable items and
 	 * available options to users when searching.
 	 *
-	 * @see SearchTemplate
+	 * @see ISearchTemplate
 	 *
 	 * @since 15.0.0
 	 *
-	 * @return SearchTemplate
+	 * @return ISearchTemplate
 	 */
-	public function getSearchTemplate(): SearchTemplate;
+	public function getSearchTemplate(): ISearchTemplate;
 
 
 	/**
@@ -182,19 +182,19 @@ interface IFullTextSearchProvider {
 
 
 	/**
-	 * Returns all indexable document for a user as an array of IndexDocument.
+	 * Returns all indexable document for a user as an array of IIndexDocument.
 	 *
-	 * There is no need to fill each IndexDocument with content; at this point,
+	 * There is no need to fill each IIndexDocument with content; at this point,
 	 * only fill the object with the minimum information to not waste memory while
 	 * still being able to identify the document it is referring to.
 	 *
 	 * FullTextSearch will call 2 other methods of this interface for each
-	 * IndexDocument of the array, prior to their indexing:
+	 * IIndexDocument of the array, prior to their indexing:
 	 *
 	 * - first, to compare the date of the last index,
-	 * - then, to fill each IndexDocument with complete data
+	 * - then, to fill each IIndexDocument with complete data
 	 *
-	 * @see IndexDocument
+	 * @see IIndexDocument
 	 *
 	 * @since 15.0.0
 	 *  -> 16.0.0: the parameter "$chunk" was added
@@ -202,7 +202,7 @@ interface IFullTextSearchProvider {
 	 * @param string $userId
 	 * @param string $chunk
 	 *
-	 * @return IndexDocument[]
+	 * @return IIndexDocument[]
 	 */
 	public function generateIndexableDocuments(string $userId, string $chunk): array;
 
@@ -210,40 +210,40 @@ interface IFullTextSearchProvider {
 	/**
 	 * Called to verify that the document is not already indexed and that the
 	 * old index is not up-to-date, using the IIndex from
-	 * IndexDocument->getIndex()
+	 * IIndexDocument->getIndex()
 	 *
-	 * Returning true will not queue the current IndexDocument to any further
+	 * Returning true will not queue the current IIndexDocument to any further
 	 * operation and will continue on the next element from the list returned by
 	 * generateIndexableDocuments().
 	 *
 	 * @since 15.0.0
 	 *
-	 * @param IndexDocument $document
+	 * @param IIndexDocument $document
 	 *
 	 * @return bool
 	 */
-	public function isDocumentUpToDate(IndexDocument $document): bool;
+	public function isDocumentUpToDate(IIndexDocument $document): bool;
 
 
 	/**
-	 * Must fill IndexDocument with all information relative to the document,
+	 * Must fill IIndexDocument with all information relative to the document,
 	 * before its indexing by the Search Platform.
 	 *
 	 * Method is called for each element returned previously by
 	 * generateIndexableDocuments().
 	 *
-	 * @see IndexDocument
+	 * @see IIndexDocument
 	 *
 	 * @since 15.0.0
 	 *
-	 * @param IndexDocument $document
+	 * @param IIndexDocument $document
 	 */
-	public function fillIndexDocument(IndexDocument $document);
+	public function fillIndexDocument(IIndexDocument $document);
 
 
 	/**
-	 * The Search Provider must create and return an IndexDocument
-	 * based on the IIndex and its status. The IndexDocument must contains all
+	 * The Search Provider must create and return an IIndexDocument
+	 * based on the IIndex and its status. The IIndexDocument must contains all
 	 * information as it will be send for indexing.
 	 *
 	 * Method is called during a cron or a ./occ fulltextsearch:live after a
@@ -253,9 +253,9 @@ interface IFullTextSearchProvider {
 	 *
 	 * @param IIndex $index
 	 *
-	 * @return IndexDocument
+	 * @return IIndexDocument
 	 */
-	public function updateDocument(IIndex $index): IndexDocument;
+	public function updateDocument(IIndex $index): IIndexDocument;
 
 
 	/**
diff --git a/lib/public/FullTextSearch/Model/DocumentAccess.php b/lib/public/FullTextSearch/Model/IDocumentAccess.php
index ef199fb7385..66697340a8c 100644
--- a/lib/public/FullTextSearch/Model/DocumentAccess.php
+++ b/lib/public/FullTextSearch/Model/IDocumentAccess.php
@@ -31,11 +31,8 @@ declare(strict_types=1);
 namespace OCP\FullTextSearch\Model;
 
 
-use JsonSerializable;
-
-
 /**
- * Class DocumentAccess
+ * Interface IDocumentAccess
  *
  * This object is used as a data transfer object when
  *
@@ -43,36 +40,18 @@ use JsonSerializable;
  * - generating a search request.
  *
  * During the index, it is used to define which users, groups, circles, ...
- * have access to the IndexDocument
+ * have access to the IIndexDocument
  *
  * During the search, it is internally use to define to which group, circles, ...
  * a user that perform the search belongs to.
  *
- * @see IndexDocument::setAccess
+ * @see IIndexDocument::setAccess
  *
  * @since 15.0.0
  *
  * @package OCP\FullTextSearch\Model
  */
-final class DocumentAccess implements JsonSerializable {
-
-	/** @var string */
-	private $ownerId;
-
-	/** @var string */
-	private $viewerId = '';
-
-	/** @var array */
-	private $users = [];
-
-	/** @var array */
-	private $groups = [];
-
-	/** @var array */
-	private $circles = [];
-
-	/** @var array */
-	private $links = [];
+interface IDocumentAccess {
 
 
 	/**
@@ -80,13 +59,11 @@ final class DocumentAccess implements JsonSerializable {
 	 *
 	 * @since 15.0.0
 	 *
-	 * DocumentAccess constructor.
+	 * IDocumentAccess constructor.
 	 *
 	 * @param string $ownerId
 	 */
-	public function __construct(string $ownerId = '') {
-		$this->setOwnerId($ownerId);
-	}
+	public function __construct(string $ownerId = '');
 
 
 	/**
@@ -96,13 +73,9 @@ final class DocumentAccess implements JsonSerializable {
 	 *
 	 * @param string $ownerId
 	 *
-	 * @return DocumentAccess
+	 * @return IDocumentAccess
 	 */
-	public function setOwnerId(string $ownerId) {
-		$this->ownerId = $ownerId;
-
-		return $this;
-	}
+	public function setOwnerId(string $ownerId): IDocumentAccess;
 
 	/**
 	 * Get the Owner of the document.
@@ -111,9 +84,7 @@ final class DocumentAccess implements JsonSerializable {
 	 *
 	 * @return string
 	 */
-	public function getOwnerId(): string {
-		return $this->ownerId;
-	}
+	public function getOwnerId(): string;
 
 
 	/**
@@ -123,13 +94,9 @@ final class DocumentAccess implements JsonSerializable {
 	 *
 	 * @param string $viewerId
 	 *
-	 * @return DocumentAccess
+	 * @return IDocumentAccess
 	 */
-	public function setViewerId(string $viewerId): DocumentAccess {
-		$this->viewerId = $viewerId;
-
-		return $this;
-	}
+	public function setViewerId(string $viewerId): IDocumentAccess;
 
 	/**
 	 * Get the viewer of the document.
@@ -138,9 +105,7 @@ final class DocumentAccess implements JsonSerializable {
 	 *
 	 * @return string
 	 */
-	public function getViewerId(): string {
-		return $this->viewerId;
-	}
+	public function getViewerId(): string;
 
 
 	/**
@@ -150,13 +115,9 @@ final class DocumentAccess implements JsonSerializable {
 	 *
 	 * @param array $users
 	 *
-	 * @return DocumentAccess
+	 * @return IDocumentAccess
 	 */
-	public function setUsers(array $users): DocumentAccess {
-		$this->users = $users;
-
-		return $this;
-	}
+	public function setUsers(array $users): IDocumentAccess;
 
 	/**
 	 * Add an entry to the list of users that have read access to the document.
@@ -165,13 +126,9 @@ final class DocumentAccess implements JsonSerializable {
 	 *
 	 * @param string $user
 	 *
-	 * @return DocumentAccess
+	 * @return IDocumentAccess
 	 */
-	public function addUser(string $user): DocumentAccess {
-		$this->users[] = $user;
-
-		return $this;
-	}
+	public function addUser(string $user): IDocumentAccess;
 
 	/**
 	 * Add multiple entries to the list of users that have read access to the
@@ -181,13 +138,9 @@ final class DocumentAccess implements JsonSerializable {
 	 *
 	 * @param array $users
 	 *
-	 * @return DocumentAccess
+	 * @return IDocumentAccess
 	 */
-	public function addUsers($users): DocumentAccess {
-		$this->users = array_merge($this->users, $users);
-
-		return $this;
-	}
+	public function addUsers($users): IDocumentAccess;
 
 	/**
 	 * Get the complete list of users that have read access to the document.
@@ -196,9 +149,7 @@ final class DocumentAccess implements JsonSerializable {
 	 *
 	 * @return array
 	 */
-	public function getUsers(): array {
-		return $this->users;
-	}
+	public function getUsers(): array;
 
 
 	/**
@@ -208,13 +159,9 @@ final class DocumentAccess implements JsonSerializable {
 	 *
 	 * @param array $groups
 	 *
-	 * @return DocumentAccess
+	 * @return IDocumentAccess
 	 */
-	public function setGroups(array $groups): DocumentAccess {
-		$this->groups = $groups;
-
-		return $this;
-	}
+	public function setGroups(array $groups): IDocumentAccess;
 
 	/**
 	 * Add an entry to the list of groups that have read access to the document.
@@ -223,13 +170,9 @@ final class DocumentAccess implements JsonSerializable {
 	 *
 	 * @param string $group
 	 *
-	 * @return DocumentAccess
+	 * @return IDocumentAccess
 	 */
-	public function addGroup(string $group): DocumentAccess {
-		$this->groups[] = $group;
-
-		return $this;
-	}
+	public function addGroup(string $group): IDocumentAccess;
 
 	/**
 	 * Add multiple entries to the list of groups that have read access to the
@@ -239,13 +182,9 @@ final class DocumentAccess implements JsonSerializable {
 	 *
 	 * @param array $groups
 	 *
-	 * @return DocumentAccess
+	 * @return IDocumentAccess
 	 */
-	public function addGroups(array $groups) {
-		$this->groups = array_merge($this->groups, $groups);
-
-		return $this;
-	}
+	public function addGroups(array $groups);
 
 	/**
 	 * Get the complete list of groups that have read access to the document.
@@ -254,9 +193,7 @@ final class DocumentAccess implements JsonSerializable {
 	 *
 	 * @return array
 	 */
-	public function getGroups(): array {
-		return $this->groups;
-	}
+	public function getGroups(): array;
 
 
 	/**
@@ -266,13 +203,9 @@ final class DocumentAccess implements JsonSerializable {
 	 *
 	 * @param array $circles
 	 *
-	 * @return DocumentAccess
+	 * @return IDocumentAccess
 	 */
-	public function setCircles(array $circles): DocumentAccess {
-		$this->circles = $circles;
-
-		return $this;
-	}
+	public function setCircles(array $circles): IDocumentAccess;
 
 	/**
 	 * Add an entry to the list of circles that have read access to the document.
@@ -281,13 +214,9 @@ final class DocumentAccess implements JsonSerializable {
 	 *
 	 * @param string $circle
 	 *
-	 * @return DocumentAccess
+	 * @return IDocumentAccess
 	 */
-	public function addCircle(string $circle): DocumentAccess {
-		$this->circles[] = $circle;
-
-		return $this;
-	}
+	public function addCircle(string $circle): IDocumentAccess;
 
 	/**
 	 * Add multiple entries to the list of groups that have read access to the
@@ -297,13 +226,9 @@ final class DocumentAccess implements JsonSerializable {
 	 *
 	 * @param array $circles
 	 *
-	 * @return DocumentAccess
+	 * @return IDocumentAccess
 	 */
-	public function addCircles(array $circles): DocumentAccess {
-		$this->circles = array_merge($this->circles, $circles);
-
-		return $this;
-	}
+	public function addCircles(array $circles): IDocumentAccess;
 
 	/**
 	 * Get the complete list of circles that have read access to the document.
@@ -312,9 +237,7 @@ final class DocumentAccess implements JsonSerializable {
 	 *
 	 * @return array
 	 */
-	public function getCircles(): array {
-		return $this->circles;
-	}
+	public function getCircles(): array;
 
 
 	/**
@@ -324,13 +247,9 @@ final class DocumentAccess implements JsonSerializable {
 	 *
 	 * @param array $links
 	 *
-	 * @return DocumentAccess
+	 * @return IDocumentAccess
 	 */
-	public function setLinks(array $links): DocumentAccess {
-		$this->links = $links;
-
-		return $this;
-	}
+	public function setLinks(array $links): IDocumentAccess;
 
 	/**
 	 * Get the list of links that have read access to the document.
@@ -339,25 +258,7 @@ final class DocumentAccess implements JsonSerializable {
 	 *
 	 * @return array
 	 */
-	public function getLinks(): array {
-		return $this->links;
-	}
+	public function getLinks(): array;
 
-
-	/**
-	 * @since 15.0.0
-	 *
-	 * @return array
-	 */
-	public function jsonSerialize(): array {
-		return [
-			'ownerId' => $this->getOwnerId(),
-			'viewerId' => $this->getViewerId(),
-			'users' => $this->getUsers(),
-			'groups' => $this->getGroups(),
-			'circles' => $this->getCircles(),
-			'links' => $this->getLinks()
-		];
-	}
 }
 
diff --git a/lib/public/FullTextSearch/Model/IIndex.php b/lib/public/FullTextSearch/Model/IIndex.php
index adfdf34aee6..d8a1db1a1b7 100644
--- a/lib/public/FullTextSearch/Model/IIndex.php
+++ b/lib/public/FullTextSearch/Model/IIndex.php
@@ -38,10 +38,10 @@ namespace OCP\FullTextSearch\Model;
  * regarding the date of the last index and the date of the last modification
  * of the original document.
  *
- * The uniqueness of an IndexDocument is made by the Id of the Content Provider
+ * The uniqueness of an IIndexDocument is made by the Id of the Content Provider
  * and the Id of the original document within the Content Provider.
  *
- * We will call original document the source from which the IndexDocument is
+ * We will call original document the source from which the IIndexDocument is
  * generated. As an example, an original document can be a file, a mail, ...
  *
  * @since 15.0.0
diff --git a/lib/public/FullTextSearch/Model/IIndexDocument.php b/lib/public/FullTextSearch/Model/IIndexDocument.php
new file mode 100644
index 00000000000..d3184530a7f
--- /dev/null
+++ b/lib/public/FullTextSearch/Model/IIndexDocument.php
@@ -0,0 +1,636 @@
+<?php
+declare(strict_types=1);
+
+
+/**
+ * FullTextSearch - Full text search framework for Nextcloud
+ *
+ * This file is licensed under the Affero General Public License version 3 or
+ * later. See the COPYING file.
+ *
+ * @author Maxence Lange <maxence@artificial-owl.com>
+ * @copyright 2018
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+
+namespace OCP\FullTextSearch\Model;
+
+
+/**
+ * Class IIndexDocument
+ *
+ * This is one of the main class of the FullTextSearch, used as a data transfer
+ * object. An IIndexDocument is created to manage documents around FullTextSearch,
+ * during an index and during a search.
+ * The uniqueness of an IIndexDocument is made by the Id of the Content Provider
+ * and the Id of the original document within the Content Provider.
+ *
+ * We will call original document the source from which the IIndexDocument is
+ * generated. As an example, an original document can be a file, a mail, ...
+ *
+ * @since 15.0.0
+ *
+ * @package OC\FullTextSearch\Model
+ */
+interface IIndexDocument {
+
+
+	const NOT_ENCODED = 0;
+	const ENCODED_BASE64 = 1;
+
+
+
+	/**
+	 * Returns the Id of the original document.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @return string
+	 */
+	public function getId(): string;
+
+
+	/**
+	 * Returns the Id of the provider.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @return string
+	 */
+	 public function getProviderId(): string;
+
+
+	/**
+	 * Set the Index related to the IIndexDocument.
+	 *
+	 * @see IIndex
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param IIndex $index
+	 *
+	 * @return IIndexDocument
+	 */
+	 public function setIndex(IIndex $index): IIndexDocument;
+
+	/**
+	 * Get the Index.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @return IIndex
+	 */
+	 public function getIndex(): IIndex;
+
+	/**
+	 * return if Index is defined.
+	 *
+	 * @since 16.0.0
+	 *
+	 * @return bool
+	 */
+	public function hasIndex(): bool;
+
+
+	/**
+	 * Set the modified time of the original document.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param int $modifiedTime
+	 *
+	 * @return IIndexDocument
+	 */
+	 public function setModifiedTime(int $modifiedTime): IIndexDocument;
+
+	/**
+	 * Get the modified time of the original document.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @return int
+	 */
+	 public function getModifiedTime(): int;
+
+	/**
+	 * Check if the original document of the IIndexDocument is older than $time.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param int $time
+	 *
+	 * @return bool
+	 */
+	 public function isOlderThan(int $time): bool;
+
+
+	/**
+	 * Set the read rights of the original document using a IDocumentAccess.
+	 *
+	 * @see IDocumentAccess
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param IDocumentAccess $access
+	 *
+	 * @return $this
+	 */
+	 public function setAccess(IDocumentAccess $access): IIndexDocument;
+
+	/**
+	 * Get the IDocumentAccess related to the original document.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @return IDocumentAccess
+	 */
+	 public function getAccess(): IDocumentAccess;
+
+
+	/**
+	 * Add a tag to the list.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param string $tag
+	 *
+	 * @return IIndexDocument
+	 */
+	 public function addTag(string $tag): IIndexDocument;
+
+	/**
+	 * Set the list of tags assigned to the original document.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param array $tags
+	 *
+	 * @return IIndexDocument
+	 */
+	 public function setTags(array $tags): IIndexDocument;
+
+	/**
+	 * Get the list of tags assigned to the original document.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @return array
+	 */
+	 public function getTags(): array;
+
+
+	/**
+	 * Add a meta tag to the list.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param string $tag
+	 *
+	 * @return IIndexDocument
+	 */
+	 public function addMetaTag(string $tag): IIndexDocument;
+
+	/**
+	 * Set the list of meta tags assigned to the original document.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param array $tags
+	 *
+	 * @return IIndexDocument
+	 */
+	 public function setMetaTags(array $tags): IIndexDocument;
+
+	/**
+	 * Get the list of meta tags assigned to the original document.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @return array
+	 */
+	 public function getMetaTags(): array;
+
+
+	/**
+	 * Add a sub tag to the list.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param string $sub
+	 * @param string $tag
+	 *
+	 * @return IIndexDocument
+	 */
+	 public function addSubTag(string $sub, string $tag): IIndexDocument;
+
+	/**
+	 * Set the list of sub tags assigned to the original document.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param array $tags
+	 *
+	 * @return IIndexDocument
+	 */
+	 public function setSubTags(array $tags): IIndexDocument;
+
+	/**
+	 * Get the list of sub tags assigned to the original document.
+	 * If $formatted is true, the result will be formatted in a one
+	 * dimensional array.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param bool $formatted
+	 *
+	 * @return array
+	 */
+	 public function getSubTags(bool $formatted = false): array;
+
+
+	/**
+	 * Set the source of the original document.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param string $source
+	 *
+	 * @return IIndexDocument
+	 */
+	 public function setSource(string $source): IIndexDocument;
+
+	/**
+	 * Get the source of the original document.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @return string
+	 */
+	 public function getSource(): string;
+
+
+	/**
+	 * Set the title of the original document.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param string $title
+	 *
+	 * @return IIndexDocument
+	 */
+	 public function setTitle(string $title): IIndexDocument;
+
+	/**
+	 * Get the title of the original document.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @return string
+	 */
+	 public function getTitle(): string;
+
+
+	/**
+	 * Set the content of the document.
+	 * $encoded can be NOT_ENCODED or ENCODED_BASE64 if the content is raw or
+	 * encoded in base64.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param string $content
+	 * @param int $encoded
+	 *
+	 * @return IIndexDocument
+	 */
+	 public function setContent(string $content, int $encoded = 0): IIndexDocument;
+
+	/**
+	 * Get the content of the original document.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @return string
+	 */
+	 public function getContent(): string;
+
+	/**
+	 * Returns the type of the encoding on the content.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @return int
+	 */
+	 public function isContentEncoded(): int;
+
+	/**
+	 * Return the size of the content.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @return int
+	 */
+	 public function getContentSize(): int;
+
+
+	/**
+	 * Generate an hash, based on the content of the original document.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @return IIndexDocument
+	 */
+	 public function initHash(): IIndexDocument;
+
+	/**
+	 * Set the hash of the original document.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param string $hash
+	 *
+	 * @return IIndexDocument
+	 */
+	 public function setHash(string $hash): IIndexDocument;
+
+	/**
+	 * Get the hash of the original document.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @return string
+	 */
+	 public function getHash(): string;
+
+
+	/**
+	 * Add a part, identified by a string, and its content.
+	 *
+	 * It is strongly advised to use alphanumerical chars with no space in the
+	 * $part string.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param string $part
+	 * @param string $content
+	 *
+	 * @return IIndexDocument
+	 */
+	 public function addPart(string $part, string $content): IIndexDocument;
+
+	/**
+	 * Set all parts and their content.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param array $parts
+	 *
+	 * @return IIndexDocument
+	 */
+	 public function setParts(array $parts): IIndexDocument;
+
+	/**
+	 * Get all parts of the IIndexDocument.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @return array
+	 */
+	 public function getParts(): array;
+
+
+	/**
+	 * Add a link, usable by the frontend.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param string $link
+	 *
+	 * @return IIndexDocument
+	 */
+	 public function setLink(string $link): IIndexDocument;
+
+	/**
+	 * Get the link.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @return string
+	 */
+	 public function getLink(): string;
+
+
+	/**
+	 * Set more information that couldn't be set using other method.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param array $more
+	 *
+	 * @return IIndexDocument
+	 */
+	 public function setMore(array $more): IIndexDocument;
+
+	/**
+	 * Get more information.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @return array
+	 */
+	 public function getMore(): array;
+
+
+	/**
+	 * Add some excerpt of the content of the original document, usually based
+	 * on the search request.
+	 *
+	 * @since 16.0.0
+	 *
+	 * @param string $source
+	 * @param string $excerpt
+	 *
+	 * @return IIndexDocument
+	 */
+	 public function addExcerpt(string $source, string $excerpt): IIndexDocument;
+
+	/**
+	 * Set all excerpts of the content of the original document.
+	 *
+	 * @since 16.0.0
+	 *
+	 * @param array $excerpts
+	 *
+	 * @return IIndexDocument
+	 */
+	 public function setExcerpts(array $excerpts): IIndexDocument;
+
+	/**
+	 * Get all excerpts of the content of the original document.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @return array
+	 */
+	 public function getExcerpts(): array;
+
+
+	/**
+	 * Set the score to the result assigned to this document during a search
+	 * request.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param string $score
+	 *
+	 * @return IIndexDocument
+	 */
+	 public function setScore(string $score): IIndexDocument;
+
+	/**
+	 * Get the score.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @return string
+	 */
+	 public function getScore(): string;
+
+
+	/**
+	 * Set some information about the original document that will be available
+	 * to the front-end when displaying search result. (as string)
+	 * Because this information will not be indexed, this method can also be
+	 * used to manage some data while filling the IIndexDocument before its
+	 * indexing.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param string $info
+	 * @param string $value
+	 *
+	 * @return IIndexDocument
+	 */
+	 public function setInfo(string $info, string $value): IIndexDocument;
+
+	/**
+	 * Get an information about a document. (string)
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param string $info
+	 * @param string $default
+	 *
+	 * @return string
+	 */
+	 public function getInfo(string $info, string $default = ''): string;
+
+	/**
+	 * Set some information about the original document that will be available
+	 * to the front-end when displaying search result. (as array)
+	 * Because this information will not be indexed, this method can also be
+	 * used to manage some data while filling the IIndexDocument before its
+	 * indexing.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param string $info
+	 * @param array $value
+	 *
+	 * @return IIndexDocument
+	 */
+	 public function setInfoArray(string $info, array $value): IIndexDocument;
+
+	/**
+	 * Get an information about a document. (array)
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param string $info
+	 * @param array $default
+	 *
+	 * @return array
+	 */
+	 public function getInfoArray(string $info, array $default = []): array;
+
+	/**
+	 * Set some information about the original document that will be available
+	 * to the front-end when displaying search result. (as int)
+	 * Because this information will not be indexed, this method can also be
+	 * used to manage some data while filling the IIndexDocument before its
+	 * indexing.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param string $info
+	 * @param int $value
+	 *
+	 * @return IIndexDocument
+	 */
+	 public function setInfoInt(string $info, int $value): IIndexDocument;
+
+	/**
+	 * Get an information about a document. (int)
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param string $info
+	 * @param int $default
+	 *
+	 * @return int
+	 */
+	 public function getInfoInt(string $info, int $default = 0): int;
+
+	/**
+	 * Set some information about the original document that will be available
+	 * to the front-end when displaying search result. (as bool)
+	 * Because this information will not be indexed, this method can also be
+	 * used to manage some data while filling the IIndexDocument before its
+	 * indexing.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param string $info
+	 * @param bool $value
+	 *
+	 * @return IIndexDocument
+	 */
+	 public function setInfoBool(string $info, bool $value): IIndexDocument;
+
+	/**
+	 * Get an information about a document. (bool)
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param string $info
+	 * @param bool $default
+	 *
+	 * @return bool
+	 */
+	 public function getInfoBool(string $info, bool $default = false): bool;
+
+	/**
+	 * Get all info.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @return array
+	 */
+	 public function getInfoAll(): array;
+
+}
+
diff --git a/lib/public/FullTextSearch/Model/ISearchOption.php b/lib/public/FullTextSearch/Model/ISearchOption.php
new file mode 100644
index 00000000000..33802028547
--- /dev/null
+++ b/lib/public/FullTextSearch/Model/ISearchOption.php
@@ -0,0 +1,161 @@
+<?php
+declare(strict_types=1);
+
+
+/**
+ * FullTextSearch - Full text search framework for Nextcloud
+ *
+ * This file is licensed under the Affero General Public License version 3 or
+ * later. See the COPYING file.
+ *
+ * @author Maxence Lange <maxence@artificial-owl.com>
+ * @copyright 2018
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+
+namespace OCP\FullTextSearch\Model;
+
+
+/**
+ * @since 15.0.0
+ *
+ * Interface ISearchOption
+ *
+ * @package OCP\FullTextSearch\Model
+ */
+interface ISearchOption {
+
+
+	const CHECKBOX = 'checkbox';
+	const INPUT = 'input';
+
+	const INPUT_SMALL = 'small';
+
+
+	/**
+	 * Set the name/key of the option.
+	 * The string should only contains alphanumerical chars and underscore.
+	 * The key can be retrieve when using ISearchRequest::getOption
+	 *
+	 * @see ISearchRequest::getOption
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param string $name
+	 *
+	 * @return ISearchOption
+	 */
+	public function setName(string $name): ISearchOption;
+
+	/**
+	 * Get the name/key of the option.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @return string
+	 */
+	public function getName(): string;
+
+
+	/**
+	 * Set the title/display name of the option.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param string $title
+	 *
+	 * @return ISearchOption
+	 */
+	public function setTitle(string $title): ISearchOption;
+
+	/**
+	 * Get the title of the option.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @return string
+	 */
+	public function getTitle(): string;
+
+
+	/**
+	 * Set the type of the option.
+	 * $type can be ISearchOption::CHECKBOX or ISearchOption::INPUT
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param string $type
+	 *
+	 * @return ISearchOption
+	 */
+	public function setType(string $type): ISearchOption;
+
+	/**
+	 * Get the type of the option.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @return string
+	 */
+	public function getType(): string;
+
+
+	/**
+	 * In case of Type is INPUT, set the size of the input field.
+	 * Value can be ISearchOption::INPUT_SMALL or not defined.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param string $size
+	 *
+	 * @return ISearchOption
+	 */
+	public function setSize(string $size): ISearchOption;
+
+	/**
+	 * Get the size of the INPUT.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @return string
+	 */
+	public function getSize(): string;
+
+
+	/**
+	 * In case of Type is , set the placeholder to be displayed in the input
+	 * field.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @param string $placeholder
+	 *
+	 * @return ISearchOption
+	 */
+	public function setPlaceholder(string $placeholder): ISearchOption;
+
+	/**
+	 * Get the placeholder.
+	 *
+	 * @since 15.0.0
+	 *
+	 * @return string
+	 */
+	public function getPlaceholder(): string;
+
+}
diff --git a/lib/public/FullTextSearch/Model/ISearchResult.php b/lib/public/FullTextSearch/Model/ISearchResult.php
index 453ec61e7de..2ca61c2f37b 100644
--- a/lib/public/FullTextSearch/Model/ISearchResult.php
+++ b/lib/public/FullTextSearch/Model/ISearchResult.php
@@ -78,31 +78,31 @@ interface ISearchResult {
 
 
 	/**
-	 * Add an IndexDocument as one of the result of the search request.
+	 * Add an IIndexDocument as one of the result of the search request.
 	 *
 	 * @since 15.0.0
 	 *
-	 * @param IndexDocument $document
+	 * @param IIndexDocument $document
 	 *
 	 * @return ISearchResult
 	 */
-	public function addDocument(IndexDocument $document): ISearchResult;
+	public function addDocument(IIndexDocument $document): ISearchResult;
 
 	/**
-	 * Returns all result of the search request, in an array of IndexDocument.
+	 * Returns all result of the search request, in an array of IIndexDocument.
 	 *
 	 * @since 15.0.0
 	 *
-	 * @return IndexDocument[]
+	 * @return IIndexDocument[]
 	 */
 	public function getDocuments(): array;
 
 	/**
-	 * Set an array of IndexDocument as the result of the search request.
+	 * Set an array of IIndexDocument as the result of the search request.
 	 *
 	 * @since 15.0.0
 	 *
-	 * @param IndexDocument[] $documents
+	 * @param IIndexDocument[] $documents
 	 *
 	 * @return ISearchResult
 	 */
diff --git a/lib/public/FullTextSearch/Model/SearchTemplate.php b/lib/public/FullTextSearch/Model/ISearchTemplate.php
index 7d9159190ea..e0140b23252 100644
--- a/lib/public/FullTextSearch/Model/SearchTemplate.php
+++ b/lib/public/FullTextSearch/Model/ISearchTemplate.php
@@ -31,12 +31,11 @@ declare(strict_types=1);
 namespace OCP\FullTextSearch\Model;
 
 
-use JsonSerializable;
 use OCP\FullTextSearch\IFullTextSearchProvider;
 
 
 /**
- * Class SearchTemplate
+ * Class ISearchTemplate
  *
  * This is a data transfer object that should be created by Content Provider
  * when the getSearchTemplate() method is called.
@@ -60,40 +59,7 @@ use OCP\FullTextSearch\IFullTextSearchProvider;
  *
  * @package OCP\FullTextSearch\Model
  */
-final class SearchTemplate implements JsonSerializable {
-
-
-	/** @var string */
-	private $icon = '';
-
-	/** @var string */
-	private $css = '';
-
-	/** @var string */
-	private $template = '';
-
-	/** @var SearchOption[] */
-	private $panelOptions = [];
-
-	/** @var SearchOption[] */
-	private $navigationOptions = [];
-
-
-	/**
-	 * SearchTemplate constructor.
-	 *
-	 * the class of the icon and the css file to be loaded can be set during the
-	 * creation of the object.
-	 *
-	 * @since 15.0.0
-	 *
-	 * @param string $icon
-	 * @param string $css
-	 */
-	public function __construct(string $icon = '', string $css = '') {
-		$this->icon = $icon;
-		$this->css = $css;
-	}
+interface ISearchTemplate {
 
 
 	/**
@@ -104,13 +70,9 @@ final class SearchTemplate implements JsonSerializable {
 	 *
 	 * @param string $class
 	 *
-	 * @return SearchTemplate
+	 * @return ISearchTemplate
 	 */
-	public function setIcon(string $class): SearchTemplate {
-		$this->icon = $class;
-
-		return $this;
-	}
+	public function setIcon(string $class): ISearchTemplate;
 
 	/**
 	 * Get the class of the icon.
@@ -119,9 +81,7 @@ final class SearchTemplate implements JsonSerializable {
 	 *
 	 * @return string
 	 */
-	public function getIcon(): string {
-		return $this->icon;
-	}
+	public function getIcon(): string;
 
 
 	/**
@@ -131,13 +91,9 @@ final class SearchTemplate implements JsonSerializable {
 	 *
 	 * @param string $css
 	 *
-	 * @return SearchTemplate
+	 * @return ISearchTemplate
 	 */
-	public function setCss(string $css): SearchTemplate {
-		$this->css = $css;
-
-		return $this;
-	}
+	public function setCss(string $css): ISearchTemplate;
 
 	/**
 	 * Get the path of the CSS file.
@@ -146,9 +102,7 @@ final class SearchTemplate implements JsonSerializable {
 	 *
 	 * @return string
 	 */
-	public function getCss(): string {
-		return $this->css;
-	}
+	public function getCss(): string;
 
 
 	/**
@@ -161,13 +115,9 @@ final class SearchTemplate implements JsonSerializable {
 	 *
 	 * @param string $template
 	 *
-	 * @return SearchTemplate
+	 * @return ISearchTemplate
 	 */
-	public function setTemplate(string $template): SearchTemplate {
-		$this->template = $template;
-
-		return $this;
-	}
+	public function setTemplate(string $template): ISearchTemplate;
 
 	/**
 	 * Get the path of the template file.
@@ -176,57 +126,45 @@ final class SearchTemplate implements JsonSerializable {
 	 *
 	 * @return string
 	 */
-	public function getTemplate(): string {
-		return $this->template;
-	}
+	public function getTemplate(): string;
 
 
 	/**
 	 * Add an option in the Panel that is displayed when the user start a search
 	 * within the app that generate the content.
 	 *
-	 * @see SearchOption
+	 * @see ISearchOption
 	 *
 	 * @since 15.0.0
 	 *
-	 * @param SearchOption $option
+	 * @param ISearchOption $option
 	 *
-	 * @return SearchTemplate
+	 * @return ISearchTemplate
 	 */
-	public function addPanelOption(SearchOption $option): SearchTemplate {
-		$this->panelOptions[] = $option;
-
-		return $this;
-	}
+	public function addPanelOption(ISearchOption $option): ISearchTemplate;
 
 	/**
 	 * Get all options to be displayed in the Panel.
 	 *
 	 * @since 15.0.0
 	 *
-	 * @return SearchOption[]
+	 * @return ISearchOption[]
 	 */
-	public function getPanelOptions(): array {
-		return $this->panelOptions;
-	}
+	public function getPanelOptions(): array;
 
 
 	/**
 	 * Add an option in the left panel of the FullTextSearch navigation page.
 	 *
-	 * @see SearchOption
+	 * @see ISearchOption
 	 *
 	 * @since 15.0.0
 	 *
-	 * @param SearchOption $option
+	 * @param ISearchOption $option
 	 *
-	 * @return SearchTemplate
+	 * @return ISearchTemplate
 	 */
-	public function addNavigationOption(SearchOption $option): SearchTemplate {
-		$this->navigationOptions[] = $option;
-
-		return $this;
-	}
+	public function addNavigationOption(ISearchOption $option): ISearchTemplate;
 
 	/**
 	 * Get all options to be displayed in the FullTextSearch navigation page.
@@ -235,24 +173,7 @@ final class SearchTemplate implements JsonSerializable {
 	 *
 	 * @return array
 	 */
-	public function getNavigationOptions(): array {
-		return $this->navigationOptions;
-	}
+	public function getNavigationOptions(): array;
 
-
-	/**
-	 * @since 15.0.0
-	 *
-	 * @return array
-	 */
-	public function jsonSerialize(): array {
-		return [
-			'icon' => $this->getIcon(),
-			'css' => $this->getCss(),
-			'template' => $this->getTemplate(),
-			'panel' => $this->getPanelOptions(),
-			'navigation' => $this->getNavigationOptions()
-		];
-	}
 }
 
diff --git a/lib/public/FullTextSearch/Model/SearchOption.php b/lib/public/FullTextSearch/Model/SearchOption.php
deleted file mode 100644
index ae6ad3241b6..00000000000
--- a/lib/public/FullTextSearch/Model/SearchOption.php
+++ /dev/null
@@ -1,296 +0,0 @@
-<?php
-declare(strict_types=1);
-
-
-/**
- * FullTextSearch - Full text search framework for Nextcloud
- *
- * This file is licensed under the Affero General Public License version 3 or
- * later. See the COPYING file.
- *
- * @author Maxence Lange <maxence@artificial-owl.com>
- * @copyright 2018
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-
-namespace OCP\FullTextSearch\Model;
-
-
-use JsonSerializable;
-
-
-/**
- * @since 15.0.0
- *
- * Class SearchOption
- *
- * @package OCP\FullTextSearch\Model
- */
-final class SearchOption implements JsonSerializable {
-
-
-	const CHECKBOX = 'checkbox';
-	const INPUT = 'input';
-
-	const INPUT_SMALL = 'small';
-
-
-	/** @var string */
-	private $name = '';
-
-	/** @var string */
-	private $title = '';
-
-	/** @var string */
-	private $type = '';
-
-	/** @var string */
-	private $size = '';
-
-	/** @var string */
-	private $placeholder = '';
-
-
-	/**
-	 *     *
-	 *
-	 * The array can be empty in case no search options are available.
-	 * The format of the array must be like this:
-	 *
-	 * [
-	 *   'panel' => [
-	 *     'options' => [
-	 *         OPTION1,
-	 *         OPTION2,
-	 *         OPTION3
-	 *     ]
-	 *   ],
-	 *   'navigation' => [
-	 *     'icon'    => 'css-class-of-the-icon',
-	 *     'options' => [
-	 *         OPTION1,
-	 *         OPTION2,
-	 *         OPTION3
-	 *     ]
-	 *   ]
-	 * ]
-	 *
-	 * - PANEL contains entries that will be displayed in the app itself, when
-	 *   a search is initiated.
-	 * - NAVIGATION contains entries that will be available when using the
-	 *   FullTextSearch navigation page
-	 * - OPTION is an element that define each option available to the user.
-	 *
-	 * The format for the options must be like this:
-	 *
-	 * [
-	 *   'name'        => 'name_of_the_option',
-	 *   'title'       => 'Name displayed in the panel',
-	 *   'type'        => '',
-	 *   'size'        => ''   (optional),
-	 *   'placeholder' => ''   (optional)
-	 * ]
-	 *
-	 * - NAME is the variable name that is sent to the IFullTextSearchProvider
-	 *   when a ISearchRequest is requested. (keys in the array returned by the
-	 *   ISearchRequest->getOptions())
-	 * - TYPE can be 'input' or 'checkbox'
-	 * - SIZE is only used in case TYPE='input', default is 'large' but can be
-	 *   'small'
-	 * - PLACEHOLDER is only used in case TYPE='input', default is empty.
-	 */
-
-	/**
-	 * SearchOption constructor.
-	 *
-	 * Some value can be setduring the creation of the object.
-	 *
-	 * @since 15.0.0
-	 *
-	 * @param string $name
-	 * @param string $title
-	 * @param string $type
-	 * @param string $size
-	 * @param string $placeholder
-	 */
-	public function __construct(string $name = '', string $title = '', string $type = '', string $size = '', string $placeholder = '') {
-		$this->name = $name;
-		$this->title = $title;
-		$this->type = $type;
-		$this->size = $size;
-		$this->placeholder = $placeholder;
-	}
-
-
-	/**
-	 * Set the name/key of the option.
-	 * The string should only contains alphanumerical chars and underscore.
-	 * The key can be retrieve when using ISearchRequest::getOption
-	 *
-	 * @see ISearchRequest::getOption
-	 *
-	 * @since 15.0.0
-	 *
-	 * @param string $name
-	 *
-	 * @return SearchOption
-	 */
-	public function setName(string $name): SearchOption {
-		$this->name = $name;
-
-		return $this;
-	}
-
-	/**
-	 * Get the name/key of the option.
-	 *
-	 * @since 15.0.0
-	 *
-	 * @return string
-	 */
-	public function getName(): string {
-		return $this->name;
-	}
-
-
-	/**
-	 * Set the title/display name of the option.
-	 *
-	 * @since 15.0.0
-	 *
-	 * @param string $title
-	 *
-	 * @return SearchOption
-	 */
-	public function setTitle(string $title): SearchOption {
-		$this->title = $title;
-
-		return $this;
-	}
-
-	/**
-	 * Get the title of the option.
-	 *
-	 * @since 15.0.0
-	 *
-	 * @return string
-	 */
-	public function getTitle(): string {
-		return $this->title;
-	}
-
-
-	/**
-	 * Set the type of the option.
-	 * $type can be SearchOption::CHECKBOX or SearchOption::INPUT
-	 *
-	 * @since 15.0.0
-	 *
-	 * @param string $type
-	 *
-	 * @return SearchOption
-	 */
-	public function setType(string $type): SearchOption {
-		$this->type = $type;
-
-		return $this;
-	}
-
-	/**
-	 * Get the type of the option.
-	 *
-	 * @since 15.0.0
-	 *
-	 * @return string
-	 */
-	public function getType(): string {
-		return $this->type;
-	}
-
-
-	/**
-	 * In case of Type is INPUT, set the size of the input field.
-	 * Value can be SearchOption::INPUT_SMALL or not defined.
-	 *
-	 * @since 15.0.0
-	 *
-	 * @param string $size
-	 *
-	 * @return SearchOption
-	 */
-	public function setSize(string $size): SearchOption {
-		$this->size = $size;
-
-		return $this;
-	}
-
-	/**
-	 * Get the size of the INPUT.
-	 *
-	 * @since 15.0.0
-	 *
-	 * @return string
-	 */
-	public function getSize(): string {
-		return $this->size;
-	}
-
-
-	/**
-	 * In case of Type is , set the placeholder to be displayed in the input
-	 * field.
-	 *
-	 * @since 15.0.0
-	 *
-	 * @param string $placeholder
-	 *
-	 * @return SearchOption
-	 */
-	public function setPlaceholder(string $placeholder): SearchOption {
-		$this->placeholder = $placeholder;
-
-		return $this;
-	}
-
-	/**
-	 * Get the placeholder.
-	 *
-	 * @since 15.0.0
-	 *
-	 * @return string
-	 */
-	public function getPlaceholder(): string {
-		return $this->placeholder;
-	}
-
-
-	/**
-	 * @since 15.0.0
-	 *
-	 * @return array
-	 */
-	public function jsonSerialize(): array {
-		return [
-			'name' => $this->getName(),
-			'title' => $this->getTitle(),
-			'type' => $this->getType(),
-			'size' => $this->getSize(),
-			'placeholder' => $this->getPlaceholder()
-		];
-	}
-}