fix

lib/collection/nullablecollection.php

@@ -1,18 +1,18 @@
 <?php
 
 
-namespace Bx\Null\Collection;
+namespace Bx\Nullable\Collection;
 
 
 use Wt\Core\Collection\AEntityCollection;
-use Bx\Null\Entity\NullEntity;
+use Bx\Nullable\Entity\NullableEntity;
 
-class NullCollection extends AEntityCollection
+class NullableCollection extends AEntityCollection
 {
 
     /**
      * @param $xmlId
-     * @return NullEntity
+     * @return NullableEntity
      */
     public function &getByXmlId($xmlId)
     {
@@ -22,7 +22,7 @@ class NullCollection extends AEntityCollection
     /**
      * @param $id
      * @param null $default
-     * @return NullEntity|null
+     * @return NullableEntity|null
      */
     public function &get($id, $default = null)
     {
@@ -30,15 +30,15 @@ class NullCollection extends AEntityCollection
     }
 
     /**
-     * @return NullEntity
+     * @return NullableEntity
      */
-    public function &first()
+    public function &first(callable $callback = null, $default = null)
     {
-        return parent::first(); // TODO: Change the autogenerated stub
+        return parent::first($callback, $default); // TODO: Change the autogenerated stub
     }
 
     /**
-     * @return NullEntity
+     * @return NullableEntity
      */
     public function &last()
     {
@@ -46,7 +46,7 @@ class NullCollection extends AEntityCollection
     }
 
     /**
-     * @return NullEntity
+     * @return NullableEntity
      */
     public function shift()
     {
@@ -54,7 +54,7 @@ class NullCollection extends AEntityCollection
     }
 
     /**
-     * @return NullEntity
+     * @return NullableEntity
      */
     public function pop()
     {
@@ -62,7 +62,7 @@ class NullCollection extends AEntityCollection
     }
 
     /**
-     * @return NullEntity[]
+     * @return NullableEntity[]
      */
     public function all()
     {