4 files changed, 27 insertions, 2 deletions
diff --git a/engine/classes/ElggExtender.php b/engine/classes/ElggExtender.php
index d6f79d18d..bc2d67ae2 100644
--- a/engine/classes/ElggExtender.php
+++ b/engine/classes/ElggExtender.php
@@ -3,8 +3,7 @@
  * The base class for ElggEntity extenders.
  *
  * Extenders allow you to attach extended information to an
- * ElggEntity.  Core supports two: ElggAnnotation, ElggMetadata,
- * and ElggRelationship
+ * ElggEntity.  Core supports two: ElggAnnotation and ElggMetadata.
  *
  * Saving the extender data to database is handled by the child class.
  *
@@ -16,6 +15,14 @@
  * @link       http://docs.elgg.org/DataModel/Extenders
  * @see        ElggAnnotation
  * @see        ElggMetadata
+ * 
+ * @property string $type         annotation or metadata (read-only after save)
+ * @property int    $id           The unique identifier (read-only)
+ * @property int    $entity_guid  The GUID of the entity that this extender describes
+ * @property int    $access_id    Specifies the visibility level of this extender
+ * @property string $name         The name of this extender
+ * @property mixed  $value        The value of the extender (int or string)
+ * @property int    $time_created A UNIX timestamp of when the extender was created (read-only, set on first save)
  */
 abstract class ElggExtender extends ElggData
 {
diff --git a/engine/classes/ElggObject.php b/engine/classes/ElggObject.php
index 582308f28..649e32490 100644
--- a/engine/classes/ElggObject.php
+++ b/engine/classes/ElggObject.php
@@ -17,6 +17,7 @@
  * 
  * @property string $title       The title, name, or summary of this object
  * @property string $description The body, description, or content of the object
+ * @property array  $tags        Array of tags that describe the object
  */
 class ElggObject extends ElggEntity {
 
diff --git a/engine/classes/ElggRelationship.php b/engine/classes/ElggRelationship.php
index 2d9a32cbd..efc0f7eff 100644
--- a/engine/classes/ElggRelationship.php
+++ b/engine/classes/ElggRelationship.php
@@ -4,6 +4,12 @@
  *
  * @package    Elgg.Core
  * @subpackage Core
+ * 
+ * @property int    $id           The unique identifier (read-only)
+ * @property int    $guid_one     The GUID of the subject of the relationship
+ * @property string $relationship The name of the relationship
+ * @property int    $guid_two     The GUID of the object of the relationship
+ * @property int    $time_created A UNIX timestamp of when the relationship was created (read-only, set on first save)
  */
 class ElggRelationship extends ElggData implements
 	Importable
diff --git a/engine/classes/ElggRiverItem.php b/engine/classes/ElggRiverItem.php
index fcc8f9c85..8fef6bb9d 100644
--- a/engine/classes/ElggRiverItem.php
+++ b/engine/classes/ElggRiverItem.php
@@ -4,6 +4,17 @@
  *
  * @package    Elgg.Core
  * @subpackage Core
+ * 
+ * @property int $id             The unique identifier (read-only)
+ * @property int $subject_guid   The GUID of the actor
+ * @property int $object_guid    The GUID of the object
+ * @property int $annotation_id  The ID of the annotation involved in the action 
+ * @property string $type        The type of one of the entities involved in the action
+ * @property string $subtype     The subtype of one of the entities involved in the action
+ * @property string $action_type The name of the action 
+ * @property string $view        The view for displaying this river item
+ * @property int    $access_id   The visibility of the river item
+ * @property int    $posted      UNIX timestamp when the action occurred
  */
 class ElggRiverItem
 {