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[GitHub/WoltLab/WCF.git] / wcfsetup / install / files / lib / data / IObjectTreeNode.class.php

diff --git a/wcfsetup/install/files/lib/data/IObjectTreeNode.class.php b/wcfsetup/install/files/lib/data/IObjectTreeNode.class.php
index b8e6e3dfaaa3d545f7230507dde0f0a21abb4002..4b50eeff357dd5e73597eb0e39f014148381e8f4 100644 (file)
--- a/wcfsetup/install/files/lib/data/IObjectTreeNode.class.php
+++ b/wcfsetup/install/files/lib/data/IObjectTreeNode.class.php
@@ -1,59 +1,61 @@
 <?php
+
 namespace wcf\data;
 
 /**
  * Every node of a database object tree has to implement this interface.
- * 
- * @author     Matthias Schmidt
- * @copyright  2001-2019 WoltLab GmbH
- * @license    GNU Lesser General Public License <http://opensource.org/licenses/lgpl-license.php>
- * @package    WoltLabSuite\Core\Data
- * @since      5.2
+ *
+ * @author  Matthias Schmidt
+ * @copyright   2001-2019 WoltLab GmbH
+ * @license GNU Lesser General Public License <http://opensource.org/licenses/lgpl-license.php>
+ * @package WoltLabSuite\Core\Data
+ * @since   5.2
  */
-interface IObjectTreeNode extends \Countable, IIDObject, \RecursiveIterator {
-       /**
-        * Adds the given node as child node and sets the child node's parent node to this node.
-        *
-        * @param       IObjectTreeNode         $child          added child node
-        * @throws      \InvalidArgumentException               if given object is no (deocrated) instance of this class
-        */
-       public function addChild(IObjectTreeNode $child);
-       
-       /**
-        * Returns the depth of the node within the tree.
-        * 
-        * The minimum depth is `1`.
-        * 
-        * @return      integer
-        */
-       public function getDepth();
-       
-       /**
-        * Returns the number of open parent nodes.
-        * 
-        * @return      integer
-        */
-       public function getOpenParentNodes();
-       
-       /**
-        * Retruns the parent node of this node.
-        * 
-        * @return      static          parent node
-        */
-       public function getParentNode();
-       
-       /**
-        * Returns `true` if this node is the last sibling and `false` otherwise.
-        * 
-        * @return      boolean
-        */
-       public function isLastSibling();
-       
-       /**
-        * Sets the parent node of this node.
-        *
-        * @param       IObjectTreeNode         $parentNode     parent node
-        * @throws      \InvalidArgumentException               if given object is no (deocrated) instance of this class
-        */
-       public function setParentNode(IObjectTreeNode $parentNode);
+interface IObjectTreeNode extends \Countable, IIDObject, \RecursiveIterator
+{
+    /**
+     * Adds the given node as child node and sets the child node's parent node to this node.
+     *
+     * @param IObjectTreeNode $child added child node
+     * @throws  \InvalidArgumentException       if given object is no (deocrated) instance of this class
+     */
+    public function addChild(self $child);
+
+    /**
+     * Returns the depth of the node within the tree.
+     *
+     * The minimum depth is `1`.
+     *
+     * @return  int
+     */
+    public function getDepth();
+
+    /**
+     * Returns the number of open parent nodes.
+     *
+     * @return  int
+     */
+    public function getOpenParentNodes();
+
+    /**
+     * Retruns the parent node of this node.
+     *
+     * @return  static      parent node
+     */
+    public function getParentNode();
+
+    /**
+     * Returns `true` if this node is the last sibling and `false` otherwise.
+     *
+     * @return  bool
+     */
+    public function isLastSibling();
+
+    /**
+     * Sets the parent node of this node.
+     *
+     * @param IObjectTreeNode $parentNode parent node
+     * @throws  \InvalidArgumentException       if given object is no (deocrated) instance of this class
+     */
+    public function setParentNode(self $parentNode);
 }